Tucson 2010 Pages:
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Tucson 2010
This will be the first of several updates of
specimens from the Tucson show.
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TK01 Red Quartz
Second Sovietsky mine,
Dalnjegorsk, Primorskiy Kray Russia
14.5x 12.0x 7.0 cm
A large cabinet specimen, this is
my favorite of the many specimens brought back from Tucson this year.
This is perhaps the most desirable mineral/habit from Dal'Negorsk, and
certainly one of the rarest. While there are a few damaged crystals, this
piece is in remarkably good condition given its size and delicate
appearance.
Often times the crystals are bunched
together and indistinguishable, but the crystals on this piece are
aesthetically clustered, almost like a pile of straw.
The red quartz crystals contrast
nicely with the black matrix, composed primarily of ilmenite.
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TK02 Malachite ps. Cuprite (ON
MATRIX!!!)
Chessy-Les-Mines,
Rhone, Rhone Alpes, France
12.3x 9.5x 6.0 cm
I have handled a fair number of
malachite ps. cuprite pseudomorphs from Chessy, but this is by far the
most spectacular.
Those familiar with the locality
know that the majority of specimens were produced during the 1800's, and
that virtually all specimens remaining on the market exist as single
crystals, off matrix. In rare instances the cuprite pseudos occur
on azurite nodules, but they are frequently weathered and occur in
groups of 2 crystals at most.
This specimen is literally covered
with pseudomorphs and clusters to 1.9 cm. They are not all the
sharpest, but this is certainly the best and richest matrix specimen
that I have ever seen from the locality in my 15 years of collecting.
It was collected in 1984 at the
mine dumps by a local collector, who recently sold it to me. As
the matrix is clay, the piece has been stabilized.
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TK03
Beryl var. Emerald
Kagem
mine, Kitwe Prov., Zambia
3.3x
3.1x 1.6 cm
$900
Among specimen collectors, Zambian emeralds were
virtually unheard of until last year. Since the late 80's however, they
have gained popularity as faceted gemstones, a process accelerated by
Tiffany's. The majority of Zambian emeralds are exported to
Israel, where they are cut and then once again exported.
Last year, Gemfields PLC contacted the Collector's Edge, and the
ensuing partnership has since brought additional specimens to the
market.
Anyone who has been keeping track of the recently
available specimens has seen
the high prices (a piece like this one would probably retail around
$2000). I obtained this piece through the gem rough channel, and
so can offer it for about half of what it would sell for elsewhere.
The crystal is frozen in a quartz matrix, and has been
broken by tectonic movements and then rehealed with quartz, a typical
occurrence at this site.
If you want a good thumbnail/ toenail form the find,
here is a good opportunity for under 1k.
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TK04
Wulfenite
Urumqi,
Kuruktag Mountains, Xinjiang Uygur Region, Northern China
6.2x 4.1x 1.8 cm
I was
lucky enough to find one Chinese dealer who had wulfenites of decent
quality. It seemed that any of the non-Chinese dealers who had any were
asking ridiculous prices, and there was very little available.
This
specimen is from a small stash held over from the major find a couple
years ago. Although there are a few broken edges, one has to look
very closely to see them. The color is spectacular, and the
arrangement of the crystals differentiates it from the vast majority of
other specimens.
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TK05 Mimetite
Pingtouling Mine, Babu, Guangdong Prov., China
7.8x 5.7x 4.8 cm
$650
This find of mimetite
produced some of the finest examples of the species recovered since
Tsumeb. It occurred at about the same time as the pyromorphite
find, though unlike the pyromorphite, the supply of mimetite dried up
almost as quickly as it began.
This specimen hosts a
large pinacoid crystal on matrix, along with a number of smaller
crystals. With a bit of trimming this could be made into a
$1000-$1500 specimen, but I will leave it as is.
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TK06
Fluorite
De'An
Mine, Jiangxi Prov., China
19.0x 15.0x 2.8 cm
A beautiful cabinet
specimen from a major find made a few years ago. This is a rich
plate, containing numerous purple crystals imbedded in nicely
contrasting white quartz.
When these were first
discovered, the fluorite crystals were embedded in the quartz. Through a
VERY dangerous and time consuming treatment with hydrofluoric acid, the
crystals have been exposed.
Unlike many others, the
crystals do not appear to be jumbled up. Most of these were very
large cabinets; I liked this one because it seemed like a slightly
scaled-down version of some of the larger plates that I have seen over
the last few years.
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TK07 Kesterite with Mushistonite, Aquamarine
Mt. Xuebaoding,
Ping Wu Co., Sichuan Prov., China
2.5x 2.15x 1.8 cm
Simply put, this s one of
the best kesterite thumbnails that I have ever seen. There is a
bit of damage on the back , near the top, but it displays perfectly from the front
(see bottom right image).
The kesterite is double
terminated, and represents a very large single crystal. Most of
the larger kesterite specimens are actually clusters--not the case with
this one. The crystal is also perched on a couple pale tabular
aquamarines, making for a rare association and a beautifully balanced
specimen.
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TK08 Rhodochrosite
Ushkatan III Deposit, -Zhayrem area, Kazakhstan
7.4x 5.5x 3.4 cm
Kazakhstan is not a place
that comes to mind when one thinks of rhodochrosite, but in the 1990's
this deposit produced a number of very fine botryoidal specimens.
Much of it was used for
lapidary work, particularly cabochons. Today they are rare, and
represent one of the few examples of good-colored botryoidal
rhodochrosite.
I liked this one because
you could see some of the matrix present underneath the rhodochrosite--
often times they tend to look like shards of rhodochrosite, but this one
looks like a proper specimen.
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TK09 Rhodochrosite
Ushkatan III Deposit, -Zhayrem area, Kazakhstan
6.5x 3.4x 2.9 cm
$200
Kazakhstan is not a place
that comes to mind when one thinks of rhodochrosite, but in the 1990's
this deposit produced a number of very fine botryoidal specimens.
Much of it was used for
lapidary work, particularly cabochons.
Today they are rare, and
represent one of the few examples of good-colored botryoidal
rhodochrosite.
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TK10 Staurolite
Kola Peninsula, Murmanskaja Oblast',
Northern Region, Russia
4.4x 4.0x 1.6 cm
$185
Staurolite from northern
Russia is often seen at wholesale shows or rock shops, particularly
because the frequently found twins tend to form crosses.
This one is a sixling,
many times rarer than normal twins. I saw about 3 or 4 of them out
of the literally thousands of staurolite specimens available, and this
one was one with the best symmetry and overall balance.
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TK11
Wulfenite
Onderra Mine, Kaokoveld Plateau, Kunene
Region, Namibia
4.4x 3.2x 2.5 cm
$385
A very large, blocky wulfenite
crystal from a recent namibian find. There were only a couple
flats of this stuff available at the seveal shows I visited in Tucson,
and I obtained the best of what I could find.
There is a small chip on
one edge, though this crystal is about as close to being a floater as is
possible.
Because of its size and
blockiness, it reminds me a bit of the classic pieces from M'Fouati,
Congo that came out about 50 years ago...
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TK12
Wulfenite
Onderra Mine, Kaokoveld Plateau, Kunene
Region, Namibia
3.7x 2.9x 2.0 cm
$235
A cluster of blocky
wulfenite crystals from a recent namibian find. A beautiful
miniature specimen of this new material.
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TK13
Wulfenite
Onderra Mine, Kaokoveld Plateau, Kunene
Region, Namibia
3.2x 2.6x 1.9 cm
$325
A large, blocky wulfenite
crystal from a recent Namibian find. There were only a couple
flats of this stuff available at the several shows I visited in Tucson,
and I obtained the best of what I could find.
Because of its size and
blockiness, it reminds me a bit of the classic pieces from M'Fouati,
Congo that came out about 50 years ago...
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TK14
Quartz var. Amethyst
Brandberg, Erongo Region, Namibia
6.3x 5.5x 3.8 cm
$350
A beautiful
specimen hosting two parallel crystals of slightly hoppered quartz on a
scrap of matrix. Very well balanced, and damage free.
In my opinion, these are
some of the best amethyst's currently available-- although production
has largely stopped in Mexico (temporarily), the quality that was coming
out of the Mexican mines did not compare to these Namibian specimens.
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TK15
Fluorite on Quartz
Mine El Gaudo, Talampaya, La Rioja, Argentina
10.6x 4.0x 3.3 cm
An unusual fluorite
specimen from a rarely seen locality. The fluorites are present on
both the front and back of the specimen, interspersed among the quartz
crystals on the back and forming a line on the front. The bottom
part of the line has a bit of damage, as seen in the photographs, but
this remains a very beautiful and unusual specimen.
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TK16
Cerussite
Christoff Prospect, Kaokoveld Plateau, Kunene
Region, Namibia
4.3x 4.0x 2.4 cm
$240
A smokey cerussite from a
new find at the Kaokoveld Plateau. The smokey color is the result
of microscopic sulfide incusions. This find was mentioned in the
"What's New in Minerals" section of the latest Mineralogical Record.
Only one dealer had these
specimens at Tucson; I got there early and selected the best.
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TK17
Cerussite
Christoff Prospect, Kaokoveld Plateau, Kunene
Region, Namibia
4.7x 3.4x 2.3 cm
$220
A smokey cerussite from a
new find at the Kaokoveld Plateau. The smokey color is the result
of microscopic sulfide incusions. This find was mentioned in the
"What's New in Minerals" section of the latest Mineralogical Record.
This specimen is a
complete floater.
Only one dealer had these
specimens at Tucson; I got there early and selected the best.
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TK18
Sturmanite
N'Chwaning II Mine, Kalahari Manganese
Fields, Northern Cape Province, South Africa
4.6x 1.9x 1.3 cm
A rather large, elongated and terminated sturmanite
crystal unearthed at the Kalahari manganese fields in the 1980's.
You may be familiar with the brighter yellow specimens
from this same area. Those date to the 1990's and later; darker
specimens such as this one and the pieces below were unearthed during
the preceding decade.
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TK19
Sturmanite
N'Chwaning II Mine, Kalahari Manganese
Fields, Northern Cape Province, South Africa
3.6x 2.8x 1.8 cm
$290
An fat, elongated and terminated sturmanite crystal
unearthed at the Kalahari manganese fields in the 1980's.
You may be familiar with the brighter yellow specimens
from this same area. Those date to the 1990's and later; darker
specimens such as this one and the piece below were unearthed during the
preceding decade.
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TK20
Sturmanite
N'Chwaning II Mine, Kalahari Manganese
Fields, Northern Cape Province, South Africa
4.4x 3.5x 1.4 cm
$235
Multiple terminated sturmanite crystals on matrix,
unearthed at the Kalahari manganese fields in the 1980's.
You may be familiar with the brighter yellow specimens
from this same area. Those date to the 1990's and later; darker
specimens such as this one and the pieces below were unearthed during
the preceding decade.
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TK21
Zoizite var. Tanzanite
Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
1.6x 1.2x 0.65 cm
$185
A cute little bicolored tanzanite thumbnail from
Tanzania.
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TK22
Zoizite var. Tanzanite
Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
1.8x 0.9x 0.7 cm
$185
A cute little bicolored tanzanite thumbnail from
Tanzania.
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TK23
Zoizite var. Tanzanite
Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
2.1x 1.2x .5 cm
$250
A cute little bicolored tanzanite thumbnail from
Tanzania.
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TK24
Zoizite var. Tanzanite
Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
2.7x 1.2x 0.75 cm
$265
A little bicolored tanzanite thumbnail from Tanzania.
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Tucson 2010 Pages:
Page
1
Page
2: Mozambique Page
3
Page 4
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