Tucson 2011 Minerals
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1 Page 2
(more
coming soon)
***A delayed second Tucson Update. I left for
India immediately after Tucson and just returned. Selected specimens from
that trip will be posted shortly. ***
Tucson 2
This year I paid special
attention to Chinese minerals. It seems that nearly every year there is a
bonanza of one specific type of Chinese material, and then 2 years later there
is none to be found. There were the mimetites in 2000, the smokey quartz/
spessarine specimens lasted for a good 4-6 year period, and now are all but
gone. There were the Fengjiashan inesites, the Fozichong calcites, the
Urumqi wulfenites, the sea green Xianghualing fluorites, to name a few.
Visitors to Tucson this year may have noticed the near absence of specimens from
Yaogangxian-- only 2 years ago (very) respectable specimens from this mine were
being sold wholesale. The constant presence of nondescript Chinese
fluorite, stibnite and low end pyromorphite has made it seem like the bounty
will never end... but that's simply not true.
With this in mind, I tried
to find some nice Chinese minerals. Here are a few of those, in addition
to a few interesting non-Chinese things....
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CM01
Fluorite
Xianghuapu Mine,
Xianghualing Sn-polymetallic ore field, Linwu Co.
, Chenzhou Prefecture, Hunan Province, China
9.9x
9.8x 9.2
cm
$1700
This
is one of my 2 favorite pieces that I purchased at this year’s show.
This specimen consists of multiple green fluorite cubes showing
clear phantoms, perched on matrix.
The whole specimen has a very
sculptural appearance; the positioning of the fluorites on the almost
coral-like matrix makes it seem almost organic.
I can find only one crystal with a single corner cleaved, with
that minor (and difficult to spot) exception, the piece is perfect.
For
years I have largely ignored Chinese fluorite, but I am realizing that
that has been a bit of a mistake… Despite the massive quantities and abundant damage, with some
looking it is possible to find superb pieces like this one.
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CM02
Fluorite
Xianghuapu Mine
(Maiwan Mine), Xianghualing Sn-polymetallic ore field, Linwu Co.
, Chenzhou Prefecture, Hunan Province, China
12.4x
10.0x 6.0
cm
$1800
A second fluorite from Xianghuapu,
this one displaying a deep green color and a large, sharp crystal.
The entire specimen is undamaged, and well balanced.
I had considered trimming off the crystal on the back right of
the specimen, but I decided to leave it alone, as a single, large
crystal perfectly centered would seem a little too “prepared”…
Overall
this is a really great Chinese fluorite with good color, and absolutely
no damage. This specimen
and the above are from a find made a few years ago.
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CM03
Silver
Keeweenaw
Co., Keeweenaw Peninsula, Michigan, United States
5.3x
3.0x 1.9
cm
$1650
A superb crystallized silver from
Michigan, and one of the nicest miniatures I have seen from the
location. It is not the largest piece, but at over 5 cm it is still
quite substantial.
This specimen has numerous, fairly
sharp and chunky crystals branching out from a single stem of silver,
with some calcite at the base. Wire
silvers and thinner herring bone specimens are known from many
localities, but these heftier crystals really only came in any
appreciable quantity from Norway or Michigan.
This is obviously an old piece, most
silvers from this part of the USA came out in the 1800’s, and it would
be safe to assume that this piece comes from that time period. |
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CM04
Fluorite on Fluorite
Ruijing,
Jiangxi Prov., China
14.4x
8.8x 7.7
cm
$1650
This specimen is from a new find of
fluorite brought to Tucson this year. About
4 chinese dealers had them, this was probably one of the best pieces in
the size range.
Specimens from this find are
notable for the presence of a second generation of grey cubic fluorite
over lime green DODECAHEDRONS of fluorite. Fluorite
dodecahedrons are nothing new—I’ve seen them from a number of
locations, particularly Dal’Negorsk, but from China this is the first
time that I can recall seeing the habit.
Chinese fluorite is virtually always cubic or octahedral…
The habit makes it more interesting, but the piece is
beautiful even without that. The
gray cubic fluorite frames the bright green ones, and the piece is
entirely damage free, contacted only on the bottom surface on which it
is supposed to stand for display. The
framing of the green fluorite by the gray is the reason I liked this one…
the appearance of the others just didn’t seem to be balanced.
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CM05
Calcite (Twin!)
Fuzichong
Pb-Zn- ore field, Cenxi Co., Wuzhou Prefecture, Guangxi Zhuang
Autonomous Region, China
17.4x
10.9x 7.5
cm
$880
These large calcite twins were one
of the new finds last year… I looked then but could not find any, and
I don’t think I saw any online so I will assume that the find was not
terribly prolific.
This is a large twin, slightly
purplish and with minor dustings of pyrite over which additional calcite
has crystallized.
I suspect this has something to do with the purplish appearance,
but I could be way off the mark.
There is some contacting on the
reverse but for the little I saw, there were no matrix pieces so this
would be present on virtually all specimens from the find.
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CM06
Calcite (Twin!)
Fuzichong
Pb-Zn- ore field, Cenxi Co., Wuzhou Prefecture, Guangxi Zhuang
Autonomous Region, China
12.9x
10.5x 8.0
cm
$750
These large calcite twins were one
of the new finds last year… I looked then but could not find any, and
I don’t think I saw any online so I will assume that the find was not
terribly prolific.
This is a large twin, slightly
purplish and with minor dustings of pyrite over which additional calcite
has crystallized.
I suspect this has something to do with the purplish appearance,
but I could be way off the mark.
There is minor contacting on the
reverse but for the little I saw, there were no matrix pieces so this
would be present on virtually all specimens from the find.
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CM07
Calcite, Pyrite
Daye
Mine, Huangshi Pref., Hubei Prov., China
17.2x
9.8x 6.8
cm
$480
I
found one dealer who had a number of these clusters of tabular calcite
crystals, and purchased a couple. The
calcites are dusted with pyrite, and in the case of only a few pieces
(like this one), the pyrite was iridescent.
Interestingly, a couple also had small iridescent pyrite clusters
on the exact center of each tabular calcite crystal.
I though these were interesting….
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RESERVED
CM08
Calcite, Pyrite
Daye
Mine, Huangshi Pref., Hubei Prov., China
14.8x
9.0x 7.2
cm
$470
I
found one dealer who had a number of these clusters of tabular calcite
crystals, and purchased a couple. The
calcites are dusted with pyrite, and a couple also had small iridescent
pyrite clusters on the exact center of each tabular calcite crystal.
I though these were interesting….
Complete
on both sides, and stands perfectly for display.
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CM09
Calcite, Pyrite
Daye
Mine, Huangshi Pref., Hubei Prov., China
15.5x
9.3x 4.6
cm
$390
I
found one dealer who had a number of these clusters of tabular calcite
crystals, and purchased a couple. The
calcites are dusted with pyrite, and a couple also had small iridescent
pyrite clusters on the exact center of each tabular calcite crystal.
I though these were interesting….
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CM10
Fluorite
Xianghuapu Mine,
Xianghualing Sn-polymetallic ore field, Linwu Co.
, Chenzhou Prefecture, Hunan Province, China
9.3x
8.0x 6.6
cm
$440
This is one of the older Chinese
fluorite habits.
It seems that every year or two, there is a new
"edition" of Chinese fluorite… this would be the edition
from about 8-10 years ago. I
remember seeing lots of these on my first trips to Tucson, I always
ignored them because while the color was good, the specimens tended to
be unsightly plates with angular edges that highlighted the fact that
they had been broken off from larger plates.
This one does not suffer from
that problem—it seems to be a spire of fluorite that was removed from
the base, so there are no unsightly edges.
When backlit with a daylight spectrum bulb, the intense green
color really shows through—the only color comparison I can think of
would be to a backlit lollipop or green gummybear.
There have been numerous fluorite finds since these were
recovered (just look at the pieces above and below) but I don’t think
there have been any major finds in this color.
The main green finds at Xianghualing and Xianghuapu have had much
tamer colors (though I suppose It could be said that their crystal
definition was better)
I will also point out that
this specimen has been oiled. If
you hold it really close to your nose, you will smell peanut oil… I
take this as a testament to it being a relatively older fluorite,
because for the least several years the chinese have been using
synthetic oils.
I could clean it, but I find this funny and interesting so I will
leave it….
I suppose I should also include this
disclaimer:
Contains peanut products, do not handle if allergic.
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CM25
Spessartine on Smokey Quartz
Wuhan
Mine, Tongbei, Yunxiao Co., Fujian Prov., China
9.8x
7.5x 5.0
cm
$550
A
nice specimen from the finds at Tongbei. This mine is actually a
large granite hill, which over the last several years has been excavated
to recover specimens. At this point, only a small portion of that
hill remains. Specimens with better color do exist, but given
what's available these days this piece isn't bad.
This is a cabinet specimen, with
over 20 smokey quartz points surrounded by thousands of small orange
garnet crystals.
These specimens will undoubtedly
become classics in years to come, already there are fewer and fewer
being sold. I remember the first year they appeared in Tucson virtually
every single Chinese dealer had multiple flats of them, but as with many
of the major Chinese finds, the flood of specimens quickly
disappears.
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CM11
Spessartine
on Smokey Quartz
Wuhan
Mine, Tongbei, Yunxiao Co., Fujian Prov., China
5.1x
4.3x 4.0
cm
$180
A
nice specimen from the finds at Tongbei. This mine is actually a
large granite hill, which over the last several years has been excavated
to recover specimens. At this point, only a small portion of that
hill remains. Specimens with better color do exist, but given
what's available these days this piece isnt bad. I particularly
liked the arrangement of the quartz crystals with respect to each
other Only one of the quartz crystals has a small chip near the
termination, but other than that the specimen is damage free.... That is
more than can be said for the majority of these things.
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CM12
Quartz
Fengjiashan
Mine, Huangshi Pref., Hubei Prov., China
6.7x
5.7x 4.5
cm
$280
A
nice japan law twin quartz, on matrix, from the Fengjiashan mine.
This mine is particularly notable for its inesites.
Amethyst/calcite combinations, and apophyllites.
The twin is located in the
center of a nest of quartz crystals, and is quite gemmy, for a law twin.
For whatever reason, they are always milky white….
As a side note, the mine’s
name is apparently pronounced with an “H”… “Hongjiashan.”
And “Shangbao” (the fluorite
location) is actually “Sangbao”… I still butcher the
pronounciations, but minor corrections make me sound less confused when
talking to people...
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CM13
Fluorite
on Calcite
Shangbao Pyrite
mine, Leiyang Co., Hengyang Prefecture, Hunan Province, China
4.3x
3.8x 4.2
cm
$280
A nice fluorite specimen from the
Shangbao mine. While
Shangbao is notable for its pyrites and dolomites, it is
particularly famous for its fluorite. While mst of the early
pieces fo the minehad simple cubic crystals, a couple years ago there
was a small find of specimens containing these interesting cubo-octahedral
crystals
This
piece is damage free, and there are two intact crystals to 2.7 cm on
matrix. Shangbao specimens are
some of the more sought after Chinese fluorites, and are also one of the
few Chinese flourites that are in rather short supply...
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CM14
Fluorite
Ruyuan
fluorite mine, Ruyuan Co., Shaoguan Prefecture, Guangdong Province,
China
5.6x
5.4x 2.8
cm
$220
Three
fluorite crystals on a quartz matrix. These crystals have smooth
surfaces are are mostly colorless, with the exception of thin purple
wisps of color. I wouldn't call them phantoms... the color seems
to be placed a bit more randomly. Whatever the case, it's a nice
miniature
As a side note, the Ruyuan mine has
been somewhat dormant as far as specimens go. Several years ago it
was the source of many fine dark sea green fluorites, but few specimens
have come since.
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CM15
Scorodite
Hezhou,
Guangxi Zhuang A.R., China
4.5x
2.6x 2.3
cm
$280
A
nice spcimen of scorodite on pyrite from the find made approximately 3
years ago. This is another one of those Chinese finds that only
just appeared on the market before fading into relative scarcity.
This specimen has bits of blue scattered throughout the pyrite, with one
particularly good crystal peaking through. Good, blue, and well
crystallized scorodite like this is really only known from a couple
Mexican localities, Tsumeb, and one location in Morocco. Specimens
from either of the first two would cost a fortune, and the Moroccan ones
are rarely available.
The largest crystal is just over 1 cm. The blue
is a bit less intense in person
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CM16
Calcite
on Fluorite
Xianghuapu Mine,
Xianghualing Sn-polymetallic ore field, Linwu Co.
, Chenzhou Prefecture, Hunan Province, China
6.5x
4.9x 3.6
cm
$140
A
tabular gray calcite crystal on an etched, light green fluorite
octahedron. The fluorite is etched, but I cannot find any cleaves
or points of attachment so I believe it is a floater.
This is from a find made a few years back.
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CM17
Calcite
on Fluorite
Xianghuapu Mine,
Xianghualing Sn-polymetallic ore field, Linwu Co.
, Chenzhou Prefecture, Hunan Province, China
6.6x
5.0x 3.5
cm
$160
A
tabular gray calcite crystal on an etched, light green fluorite
octahedron. The fluorite is etched, but I cannot find any cleaves
or points of attachment so I believe it is a floater.
This is from a find made a few years
back.
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CM18
Phlogopite
(green!)
Bao
Shan, Yunnan
Prov., China
7.6x
7.3x 4.6
cm
$200
A
large book of gemmy GREEN phlogopite from somewhere in Yunnan
Province. Only one Chinese dealer had a few of these, and I bought
them all.
I have seen gemmy phlogopites from
Afghanistan's Kokcha Valley, but those are always orange. This is
the first time that I have seen a greenish example.
The phlogopite crystal is sharp,
well formed, and reasonably large.
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CM19
Silver
Keweenaw
Co., Keeweenaw Peninsula, Michigan, United States
4.9x
2.5x 1.1
cm
$700
A nice crystallized silver from
Michigan. This is an elongated crystal from a classic American
locality.
This specimen has fairly chunky
crystals...
Wire silvers and thinner herring bone specimens are known from
many localities, but these heftier crystals really only came in any
appreciable quantity from Norway and Michigan.
This is obviously an old piece, most
silvers from this part of the USA came out in the 1800’s, and it would
be safe to assume that this piece comes from that time period.
When viewed from the side (lower right image) this
looks a lot like a bird..... |
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CM20
Rhodochrosite
on Elpidite
Monst
Saint Hillaire, Rouville, Monteregie, Quebec, Canada
8.0x
6.2x 4.6
cm
$380
I
have seen a number of these tabular, triangular shaped rhodochrosites
from MSH, but I have only seen matrix specimens a couple times.
This specimen has 3 crystals in a cluster approximately 2.5 cm across on a matrix shared
by numerous elpidite crystals.
There
are more species found at MSH than at Tsumeb, but most only occur as
micros. Many of those that occur as visible specimens tend to be
jumbled clusters of many species, and are usually not very pretty..
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CM21
Taaffeite
Ohngaing,
Mogok, Mandalay Division, Myanmar (Burma)
1.7x
1.4x 0.75
cm
$500
Taaffeite is
considered to be one of the rarest gemstones in existance, especially
now that painite has been bumped down several notches on the rarity
scale.
This is a water worn
crystal of the species, showing a couple faces. As with many
Burmese minerals, this one comes from an alluvial deposit, where miners
work to sift soil and gravel deposited long ago by rivers.
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CM22
Red Quartz, Pyrite
Daye
Mine, Huangshi Pref., Hubei Prov., China
6.3x
6.5x 3.3
cm
$85
A
specimen of hematite included quartz with chalcopyrite and
calcite. This is from a new find made within the last year.
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CM23
Red Quartz, Calcite, Chalcopyrite
Daye
Mine, Huangshi Pref., Hubei Prov., China
6.8x
6.2x 4.0
cm
$135
A specimen of hematite included quartz with
chalcopyrite and calcite. This is from a new find made within the
last year.
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CM24
Scorodite
Kami
Mine, Ayopaya Prov., Cochabamba Dept., Bolivia
9.2x
7.5x 6.0
cm
$250
This
specimen is ugly, but when was the last time you saw a Bolivian
scorodite? This specimen consists of a cluster of quartz crystals,
richly covered with a crust of botryoidal scorodite.
As
with scorodite from many other localities, it will change color
depending on the lighting under which it is viewed. The image
below shows the color under incandescent light, and the images at right
are closer to its appearance under natural sunlight.
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Tucson 2011 Minerals
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