MDW1 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

15.1x 14.3x 4.4 cm

A lovely barite from the Linwood Mine, located in the Midwestern state of Iowa.  Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half, and consists of multiple terminated and doubly terminated barite crystals on a limestone matrix.  The size, luster, and arrangement are particularly good for the find.

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

The Linwood Mine is an active producer of calcium carbonate products, as such the presence of these crystals is actually considered a bad thing, as far as the purity of the product is concerned.  

URI6 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States
12.7x 12.5x 6.4 cm

$850

A large and very sculptural cluster of barite crystals from the Linwood Mine.  The arrangement of the crystals is unusually three-dimensional, typically most of the crystals are more of less oriented within the same plane.  Some faces are lustrous, others have bits of sediment that give a more matte finish. .

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece is a bit older than the rest on this page, begin found approximately 4 years ago. 

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW2 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

12.3x 9.4x 4.8 cm

$485

A lovely barite from the Linwood Mine, located in the Midwestern state of Iowa.  This piece consists of a cluster of multiple single and doubly terminated crystals, with a single larger, terminated crystal thrown into the mix.  Some faces are lustrous, others have bits of sediment that give a more matte finish. 

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW3 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

10.3x 6.4x 2.7 cm

$350

A large, double terminated barite crystal sitting a cluster of several other terminated and double terminated crystals.  Minor edge wear near the bottom of the main crystal.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.  Some faces are lustrous, others have bits of sediment that give a more matte finish.     

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate and calcium oxide products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW4 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

8.9x 5.7x 2.8 cm

$280

A a large, lustrous, and double terminated barite crystal backed by a couple other crystals.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW5 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

10.6x 5.8x 2.6 cm

$350

A a large, double terminated barite crystal flanked by a couple smaller crystals.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW6 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

9.4x 5.1x 2.8 cm

$190

A a large, lustrous, and double terminated barite crystal from the Linwood mine.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW7 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

13.9x 5.3x 8.0 cm 

A very large, lightly honey colored crystal from the Linwood mine.  It displays best as shown in the picture to the right of the description-- it appears to have grown along side other crystals which were separated during extraction, leaving their imprints on the sides of this crystal.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW8 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

8.6x 4.5x 2.0 cm

$300

An exceptionally gemmy barite crystal from the Linwood Mine.  Whereas the majority of crystals have a semi-imbedded coating on at least one side of the prism, this one has mostly glassy, lustrous surfaces.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW9 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

8.0x 6.5x 2.7 cm

A terminated and unusually gemmy barite crystal from Iowa with faint phantoms.  It is a bit difficult to see, but there were once other crystals attached that became separated during extraction.  The bottom right image is intended to show this.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW10 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

7.5x 4.8x 2.8 cm

$240

A large, terminated yellow crystal of barite, with unusual geminess.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW11 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

9.9x 7.2x 2.6 cm

$190

A cluster of large barite crystals, there is some damage, hence the lower price.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW12 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

13.7x 7.5x 3.6 cm

A cluster of very glassy, brownish yellow barite crystals.  There is some damage, most notably to the front edge of the forward crystal (see bottom image)

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW13 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

8.9x 4.5x 3.1 cm

A cluster of blocky barite crystals.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW14 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

7.3x 6.7x 4.6 cm

$110

A cluster of terminated, and internally gemmy barite crystals with most faces coated by semi-imbedded sediments.  The central face of the main crystal is clear, providing a window into the interior of the specimen.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW15 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

8.3x 6.6x 1.4 cm

A plate of multiple barite crystals, all growing at various angles, more or less within the same plane.  This is a very unusual specimen, notable for the stripe of marcasite or pyrite just beneath the central face of almost all of the crystals.  I have only seen a few specimens displaying this pronounced stripe of inclusions.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW16 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

8.0x 5.0x 1.3 cm

$130

A cluster of decently sized barite prisms.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW17 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

10.3x 4.0x 3.1 cm

A cluster of decently sized barite prisms.  This is a very unusual specimen, notable for the pronounced stripe of marcasite or pyrite just beneath the central face of almost all of the crystals.  I have only seen a few specimens displaying this pronounced stripe of inclusions.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW18 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

5.7x 3.7x 1.7 cm

$165

A double terminated, and unusually gemmy barite crystal.  There is very minor edge wear, though the crystal benefits greatly from not having the sediment inclusions that are so typical of specimens from this locality.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW19 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

4.0x 2.6x 3.8 cm

$68

A small, but terminated and unusually gemmy barite crystal.  There is very minor edge wear, though the crystal benefits greatly from not having the sediment inclusions that are so typical of specimens from this locality.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW21 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

13.6x 6.8x 5.6 cm

$185

A a large, terminated, and serrated barite crystal from Iowa.  There is some damage to the piece, hence the lower price.  Regardless, it displays well from the front, and is a very large crystal of the species, from anywhere.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW22 Barite

Linwood Mine, Buffalo, Scott Co., Iowa, United States

15.2x 6.6x 5.7 cm

A very large barite crystal, not damaged but lacking luster due to the semi-imbedded sediment inclusions.  This is a huge crystal at a very good  price, again only due to the luster.

Although not particularly well known outside the US, the Linwood Mine has produced some of the country's finest (and certainly largest) barite crystals, though it had not received the same attention as Elk Creek (South Dakota), the various Colorado localities, or the Meikle Mine (Nevada).

This piece comes from a find made within the last year and a half.  Barite specimens from this mine in nearly all cases are displayable from only one side-- the back is usually heavily covered with sediment, or the point of attachment.      

Opened in 1944, the Linwood Mine is an active producer of calcium carbonate products, which are used in glass and plastic manufacture, cements and other building materials, feed, water purification, and various other chemical applications.  Given the high purity of product necessary for such uses, the presence of these barium sulfate crystals is actually considered a bad thing--when crushed into the mix, they become contaminants.

The site was originally operated as a quarry, though is now an underground mine.

MDW23 Calcite

Berry Materials Corp. Quarry (North Vernon Plant), North Vernon, Jennings Co., Indiana

17.5x 9.8x 5.0 cm

$260

A beautiful cabinet specimen of light golden calcite crystals from Indiana.  I can only see two spots of damage-- one which is more or less facing the back of the specimen, and the other a 1 chip on one of the crystals.  For a (highly cleavable) species collected in a quarry (where it was probably exposed by blasting) this piece is in remarkably good condition.  

MDW24 Calcite, Celestite

Michigan Stone Co. Quarry, Maybee, Michigan, United States

16.3x 13.2x 6.8 cm

$165

A very unusual calcite from an old Michigan locality.  This piece likely dates to the 1970's or 80's, and consists of several partial celestite crystals with a line of calcite scalenohedrons.

Ideally, I would have liked to remove the celestite-- it is not so much damaged as just poorly formed, and it is possible to see the imprints of other crystals.  Unfortunately, the calcite seems to have formed in this interesting arrangement due to fluids seeping through a crack in the sedimentary matrix-- that crack has been filled in by the calcite which spans its length.  That crack--again, responsible for the interesting appearance of the calcite-- is also a weakness in the matrix that would cause any trimming to probably destroy the piece... so I have left this mineralogical oddity as it is. And besides, the blue celestite provides a nice degree of contrast to what would otherwise a be a rather monochromatic piece.

MDW25 Calcite

Auglaize Quarry, Junction, Paulding Co.,  Ohio, United States

12.6x 7.7x 6.8 cm

$145

A cabinet specimen consisting of a chrysanthemum-like cluster of calcite on matrix, from an Ohio locality popular with many collectors in the Midwestern USA.  Until I started visiting a few of the smaller shows in the Midwestern part of the country (where I live) I hadn't really seen many of these-- you don't see them at the big shows, or online very much.  In any case, it's beautiful for a quarry specimen.  

MDW26 Calcite with Marcasite

Conco Mine, North Aurora, Kane Co., Illinois, United States

13.1x 8.0x 7.5 cm

$200

A a large calcite scalenohedron from the 2010 find at the Conco Mine, located just south-west of Chicago.  Like most crystals from this find, it displays marcasite incusions, and multiple growth layers.  There are a couple very minor bits of edge wear, visible in the photographs.

MDW29 Calcite with Pyrite and Marcasite

Conco Mine, North Aurora, Kane Co., Illinois, United States

15.5x 11.0x 7.7 cm

$145

A a large calcite scalenohedron from the 2010 find at the Conco Mine, located just south-west of Chicago.  Like most crystals from this find, it displays multiple growth layers.  

Gray, a bit ugly, but a very interesting piece from an interesting locality..