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NRK1
Pyromorphite
Les Farges, Ussel, Correze, France
8.1x
4.6x 3.7 cm
$1850
A large and impressive cluster of chunky
pyromorphite crystals from the 1970's finds at Les Farges, France.
This piece is a stalactitic cluster, complete all
around and with no damage that I can find. The crystals are fairly
large
and some even show green undertones.
As far as pyromorphite goes, Europe has been
particularly blessed. Although the majority of pyromorphites on
today's market come from the last 10 years of production at Daoping,
China, in past decades Spain, France, and Germany were all host to world
class finds of pyromorphite.
Today, these European specimens mainly come out of
old collections, but they remain extremely unique and sought after
examples of the species.
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MGR05
Bismutotantalite
(XRD
Confirmed)
Antsirabé
Dist., Vakinankaratra Region, Antananarivo Prov., Madagascar
10.6x
9.2x 5.8 cm
$3000
This
specimen was posted in the previous update as struverite, but was
subsequently found to be bismutotantalite
though XRD analysis, so I am re-posting it.
Bismutotantalite
is a very rare oxide with the chemical formula Bi(Ta,Nb)O and
this is a world class example of the species.
I
cannot recall ever seeing another for sale, and Mindat only has 5
images of the mineral. The best of those is a Brittish Museum
specimen from the type locality Uganda, but I would argue that this
one is better as this crystal is far more well exposed and
significantly larger.
This crystal measures 10.6 cm and weighs
ALMOST 3 LBS.
The crystal is remarkably intact,
with only a small bit missing from the bottom. The
final picture is of the bottom of the specimen, and even there you can
see that there are clear faces and hardly any damage. There
are no chips on the sides that would be displayed, and all the edges
are sharp and clean.
If you want to clean this up a bit
more, you could probably remove some of the white pegmatite residue
with soap, a toothbrush, and some firm scrubbing. I
have chosen not to do this, because I feel that the bits of pegmatite
actually improve the appearance.
All in
all, this is a truly exceptional example of a very rare species. I
will also add that there are little bits of tourmaline stuck to the
bottom.
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NRK2
Pyromorphite
Bunker
Hill Mine, Kellogg, Coeur d'Alene Dist., Shoshone Co., Idaho, United
States
8.6x 5.1x 2.8 cm
$850
A cabinet
pyromorphite from the 1980's finds at Bunker Hill, Idaho.
There are a couple small bruises, but the larger crystals are all
intact, and I have to say that this thing is a pretty good deal,
particularly given that prismatic crystals of the slightly greenish
yellow are among the most sought after from this mine.
This
is a classic specimen from a classic American locality, that also
happens to be a superfund site.
A couple years ago the mining company ASARCO agreed to pay 1.8
billion USD to clean up various contaminated sites in the US, of which
over $400 million was earmarked to fix damage caused by the Bunker Hill
Mine and its smelter, which contaminated a lake and poisoned a river,
among other things. BUT there is a silver lining to this story: we
mineral people got some really great pyromorphite.
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NRK3
Inesite
Fengjiashan
Mine, Huangshi Pref., Hubei Prov., China
6.2x
6.4x 3.7 cm
$1350
A deep red inesite from the Fengjiashan Mine,
also known as the Daye Mine. This
mine has been one of China’s most prolific specimen producers in
recent years, notable for its calcites, amethysts and apophyllites, as
for well being the type locality for hubeite.
Perhaps the greatest thing to come from this locality so far
however, have been these inesites.
The best specimens come out in the 2005-2006
time period, around the time that this specimen would have been
recovered. In my opinion,
these inesites represent one of the iconic finds of the Chinese mineral
bonanza that has taken place over the last 14 or so years; others would
include the pyromorphites, mimetites, scheelites, etc. Yet unlike some
of these finds, the production of inesite was fairly short lived.
This specimen is a complete cluster of the
mineral on matrix, with small pyrite crystals scattered around the
periphery of the specimen. The
color is great, in fact, if it were not for the pyrite it would be easy
to mistake this for one of the 1980’s inesites from Wessels, South
Africa (I should point out, that nearly 30 years later those are still
more abundant than the Chinese examples).
On
that note, I will also add that South Africa’s manganese fields are
the only other recent source of inesite that I can think of, though the
contemporary specimens tend to lack the depth of color present in the
2005-2006 Fengjiashan specimens, and the 1980’s Wessels specimens.
Prior to that, Hale Creek in California also produced some very
great pieces, with big crystals but a very light pink color.
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NRK4
Manganocalcite
Neimeng, Chifeng, Inner Mongolia, China
14.8x 12.5x 9.2 cm
$1000
A very large fan shaped cluster of pink
manganocalcite from a new find. A limited number of specimens from
this find were first debuted by a couple Chinese dealers at Tucson 2011,
and by the end of the show all of them had been sold.
This is a fairly large, damage free example with
good color.
Within the last year, this very promising area in Inner Mongolia
has produced a number of new finds, including spectacular ilvaite, these
manganocalcites, arsenopyrite, and dark andradite garnets.... given the
species being found, one could almost call it China's version of
Dal'Negorsk.
These manganocalites seem to have been a one-time
find, the ilvaites, andradites and arsenopyrites and have continued to
come out, but I have seen no additional examples of this material.
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NRK5
Malachite ps. Cuprite
Chessy-les-Mines,
Rhone Alpes, France
1.9x
1.6x 1.5 cm
$800
A
thumbanil cluster of malachite pseudomorphs after cuprite. This
is a rather large cluster, as the vast majority of specimens from this
locality are under 1 cm.
These
pseudomorphs are classics, though with most recovered in the 1800's,
specimens only come from old collections. Examples of this size
are also particularly hard to come by.
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NRK6
Dioptase
Tsumeb
Mine, Otjikoto Region, Namibia
8.1x
5.1x 2.9 cm
$395
A
cabinet specimen of Dioptase from the Tsumb Mine.
This piece has a John Betts label, indicating that it was sold by
him in 2004.
A
nice specimen, at a good price-- particularly for a piece of this size,
with this coverage of crystals.
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NRK7
Tourmaline
Santa
Rosa Mine, Minas Gerais, Brazil
8.7x
6.3x 5.2 cm
$500
A decently sized, terminated green tourmaline
surrounded by a cleavlandite matrix. There is no damage, and the
crystal is very lustrous. Pretty good, for the price.
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NRK8
Quartz var. Amethyst
Valisoara,
Hunedoara Co., Romania
4.5x
3.7x 3.2 cm
This
thing is so purple, it makes Barney look pale and sickly.
(for
those of you outside the US, Barney is a purple, talking
dinosaur featured on a popular children's TV show)
It is a very old piece, with perhaps one of the most
intense purples I have seen in any amethyst specimen.
These days, when you see a deep purple amethyst, it probably came
from Guerrero or somewhere in Namibia or South Africa. This piece has a deeper, and far more consistent color (as
opposed to the phantoms and gradations typical of pieces from the
aforementioned localities).
The piece is accompanied by three labels, one from Kristalle, and two old labels written in German-- one from the Natural
History Museum of Wein, Austria. The
labels date the piece to at least 1932, and give the locality as
“Porkura, Siebenburgen,” Siebenburgen being the German name for
Transylvania.
This is an old classic, an example of material that
rarely ever comes up for sale, from a locality that is long closed
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NRK9
Sphalerite
Shuikoushan
ore field, Changning, Hengyang Pref., Hunan Province, China
23.8x
9.5x 5.1 cm
$500
A
very rich, large cabinet specimen of red sphalerite from
China.
A
few years ago, this locality began producing specimens of this material,
and this is one of the best I have seen to date.
Actually,
it is quite good by the standards of red sphalerite from anywhere-- to
find a specimen this rich, with crystals this size, would have been very
difficult prior to this find, however even by the standards of the
material coming from Shikoushan, this piece is exceptional. The only
damage is a small scuff on the matrix, though all the sphalerite on the
display face seems to be intact.
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NRK10
Galena
Viburnum
Trend District, Iron Co., Missouri ,
United States
11.6x
6.1x 7.4 cm
$1400
A
large and impressive galena crystal, needless to say it weighs a
lot. The specimen is complete all around, with the exception of a
bit from the back corner (which does not show when displayed).
The
main crystal rests angled on its matrix, facing upwards. These
large galena crystals, when you can find them, are usually fairly
damaged cubes that must be placed flat one one side to display.
Part
of the reason I liked this one, is the positioning of the crystal-- it
rests on its edge rather than a face, making for a much more dramatic
display.
Being
galena, it is obviously very lustrous, and when it catches the light it
can hold its own against more colorful pieces in a display case.
Galena
is a very common mineral, specimens of this caliber are certainly not,
particularly given this specie's tendency to cleave.
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NRK11
Galena
Viburnum
Trend District, Iron Co., Missouri ,
United States
8.4x
7.8x 6.6 cm
$385
Another
galena, this one an elongated, damage free crystal on matrix.
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NRK12
Copper
Kearsarge
Lode, Seneca Mine, Lake Superior Copper DIstrict., Keweenaw Co.,
Michigan
4.0x
3.7x 2.5 cm
$395
A very nice miniature of
crystallized copper, with exceptionally sharp crystals.
This piece was in the Ross Lillie collection, and was collected
by him at the Seneca mine dumps in 1980.
According
to the label, this piece was most likely mined in the early 1900’s.
Luckily, it somehow escaped the smelter and wound up resting in a pile
of waste rock for 80 years before being found by Mr. Lillie, and then
spending time in 2 Michigan collections.
It
is hard to get the camera to focus correctly, as the piece is very three
dimensional. When viewed from the front, the large, very sharp
crystal pictured in the last photograph really stands out.
Unfortunately, due to the camera's focus, I could only show the main
crystal, or the matrix of smaller crystals... not both in the same
image.
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NRK13
Silver
White
Pine Mine, Ontonagon Co., Michigan, United States
4.0x
2.2x 0.6 cm
$200
A nice specimen of arborescent
silver, associated with minor calcite. Specimens like this
were mined in the 1800's, and today are considered American
classics. This miniature has a nice patina, and its
"branches" are particularly well defined.
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NRK14
Spinel
Mogok,
Myanmar (Burma)
6.7x
4.7x 4.6 cm
$185
A
deep red and very gemmy .8 cm spinel crystal on a calcite matrix.
According to the label, this piece was mined in 2004. |

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NRK15
Quartz var. Amethyst
Sokolovskiy
Mine, near Rudniy, Kazakhstan
5.5x
3.4x 2.3 cm
$165
A
very attractive miniature specimen of twinned calcite from the Sokolovskiy mine. The
crystal shows good clarity, and is perched aesthetically on a sliver of
matrix.
These
calcites are from a find in the early 90's.
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NRK16
Chalcopyrite, Calcite, Quartz
Boldut
Mine, Cavnic, Marmures Co., Romania
6.1x
5.0x 2.4 cm
$160
A
nice miniature specimen from one of the now closed Romanian mines.
This specimen consists of numerous chalcopyrite and quartz crystals on a
stack of flattened calcite crystals.
I
remember when I started collecting, Romanian minerals were almost as
common as the comparable Peruvian material is today. These days
they are still available, but on nowhere near the same scale as before.
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NRK17
Mimetite
Nakhlak
Mine, Anarak Dist., Isfahan Prov., Iran
4.8x
4.4x 0.8 cm
$385
A
rare specimen of Iranian mimetite. This specimen was previously
listed on my website, but it sold and I recently had the opportunity to
buy it back.
Iran
has yielded some of the world's finest reticulated cerussites, as well
as wulfenites to rival Red Cloud and mimetites that surpass San Perdro
Coralitos.
This
is an example of the latter, displaying a bright orange color. It
is composed almost entirely of mimetite.
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NRK18
Fluorite
incl. Boulangerite on Quartz
Yaogangxian
Mine, Yizhang Co., Chenzhou Pref., Hunan Prov., China
8.0x
7.5x 4.9 cm
$335
A
cluster of very transparent cubic fluorite crystals perched on the edge
of a double terminated quartz crystal.
The
flourites are included by thousands of hair-like crystals of
boulangerite, which are easily visible thanks tot he transparency of the
fluorite.
There
are a few nicks on the edges of the fluorite cluster, you can
somewhat see this in the picture. Either way, I thought this was
an unusual specimen for the locality-- virtually all the fluorites from
Yaogangxian are purple cubes, this one had the boulangerite association,
and the fluorite was aesthetically positioned on the quartz,
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NRK19
Erythrite
Bou Azzer, Ouarzazate, Moroco
10.0x
9.1x 5.3 cm
$200
A cabinet specimen featuring many erythrite blades
on quartz crystals.
Erythrite is a hydrated cobalt arsenate, the cobalt
being the element responsible for the rich pruple color. The best
Erythrite crystals have without a doubt come from Bou Azzer, Morocco,
however "blooms" of tiny crystals are also known from
Australia, Canada, and New Mexico, USA.
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NRK20
Coper ps. Aragonite (MATRIX!)
Corocoro,
Pacajes Prov., La Paz Dept., Bolivia
5.1x
5.2x 1.9 cm
$350
A
very rare matrix specimen of a copper after aragonite pseudomorph.
Usually these are found in dry mud, which simply crumbles when
the specimens are collected.
In the case of this specimen, the matrix is a sheet of copper, so
it was tough enough to stay attached to the pseudomorph.
Very usual material, and no it has not been faked.
I checked carefully, and in addition to the gray sediment, there
is continuous patinated copper from the crystal to the matrix.
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NRK21
Cassiterite, Muscovite
Huya
Village, Mt. Xuebaoding, Ping Wu Co., Sichuan Prov., China
4.9x
4.2x 4.2 cm
$185
A choice miniature specimen, featuring a group of
lustrous black cassiterite crystals on a muscovite matrix.
Cassiterite from this locality was once extremely
abundant, these days, there is less of it to be found, particularly as
good, damage free specimens.
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NRK22
Scheelite
Huya
Village, Mt. Xuebaoding, Ping Wu Co., Sichuan Prov., China
3.1x
3.0x 1.6 cm
$150
A deep orange scheelite "toenail" from
China. The crystal is complete and damage free all around, though the
back is a bit less appealing than the front.
Since the early 1990's, this location has
undoubtedly produced the world's best scheelite. These days the
bulk of the crystals coming out are lighter in color, though every once
in a while the deeper orange specimens are brought to market.
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NRK23
Red Quartzm Chalcopyrite
Fengjiashan
Mine, Huangshi Pref., Hubei Prov., China
11.2x 6.7x 5.2 cm
$200
A cluster of red quartz associated with calcite and
chalcopyrite, from recent finds.
There
is a bit of sawing around the rear bottom edge.
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NRK24
Fluorite Mine,
Xianghualing Sn-polymetallic ore field, Linwu Co., Chenzhou Prefecture,
Hunan Province, China
9.3x
7.0x 6.0 cm
$325
A cluster of light green, very transparent fluorite crystals from China. These things are notoriously difficult to
photograph because they are so transparent with so many intersecting faces and
angles that the camera often has a hard time focusing.
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NRK25
Quartz var. Amethysy
Drujba
Mine, Laki Dist., Southern Rhodope Mountains, Bulgaria
(Mined
2006)
6.9x
6.0x 3.4 cm
$165
A nice amethyst specimen, consisting of two
terminated amethyst crystals from an unusual locality. Needless to
say, these are not often seen for sale.
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NRK26
Ixiolite (Scandian)
Namivu,
Alto Ligonha Dist., Zambezia Prov., Mozambique
1.8x
1.6x 0.8 cm
$85
A hemispherical (sort of) thumbnail specimen of this rare scandium
bearing mineral. Decent size, and particularly free of damage.
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NRK27
Topaz
Xuan
Le, Thanh Hoa Prov., Vietnam
2.7x
1.8x 1.2 cm
$85
A thumbnail specimen of Vietnamese topaz.
This crystal was found in an alluvial deposit, as evidenced by the
rounded edges and cloudy surfaces. The crystal actually appears to
be very gemmy on the inside, but again, years of abrasion by waterborne
particles have given it this appearance.
An interesting piece, from an unusual and seldom seen locality.
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NRK28
Ottensite
Qinglong Mine (Dachang Mine), Dachang Sb ore field, Qinglong Co., Qianxi'nan Autonomous Prefecture, Guizhou Province, China
4.8x
3.7x 1.7 cm
$200
An exceptionally rich specimen of this rare
antimony sulfide, from the type and only locality. Ottensite
usually occurs on stibnite, as is the case here.
As I said before, this specimen is exceptionally
rich. The specimens I have seen in the past usually consist of
thin, powdery coatings of the mineral; on this piece, the ottensite is
present as thick crusts and masses interspersed among many small
stibnites.
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NRK29
Quartz, Chalcopyrite, Galena
Boldut
Mine, Cavnic, Marmures Co., Romania
12.8x 8.8x 5.8 cm
$400
A nice cabinet specimen of quartz with chalcopyrite and minor galena.
I
remember when I started collecting, Romanian minerals were almost as
common as the comparable Peruvian material is today. These days
they are still available, but with the majority of the mines in the area
now closed, they are available on nowhere near the same scale as before.
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NRK30
Cuprite
Chessy-les-Mines,
Rhone Alpes, France
1.0x 0.8x 0.7 cm
$85
An
octahedral crystal of cuprite from a classic European locality.
The majority of the pieces I have seen from this location have
pseudomorphed to Malachite, but this one has not.
These
are classics, though with most recovered in the 1800's,
specimens only come from old collections.
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NRK31
Cuprite
Chessy-les-Mines,
Rhone Alpes, France
1.0x 0.7x 0.7 cm
$85
An
octahedral crystal of cuprite from a classic European locality.
The majority of the pieces I have seen from this location have
pseudomorphed to Malachite, but this one has not.
These
are classics, though with most recovered in the 1800's,
specimens only come from old collections.
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NRK32
Calcite, Fluorite on Quartz
Boldut
Mine, Cavnic, Marmures Co., Romania
6.1x
5.5x 2.2 cm
$165
A
specimen of honey colored calcite crystals on quartz, with a single
fluorite cube perched on one of the calcites.
I
remember when I started collecting, Romanian minerals were almost as
common as the comparable Peruvian material is today. These days
they are still available, but with the majority of the mines in the area
now closed, they are available on nowhere near the same scale as before.
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Click
here to view the latest clearance page! Specimens
added (8/12/2011)
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