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39 specimens found
1 | 2 | 3 | 4 | 5 |

Native Silver w. minor copper
stock #8 US 941
Wolverine Mine, Wolverine, Houghton Co.
Michigan, United States
12.2 x 5.2 x 1 CM (cabinet)
price: $1200


A very large and rich Silver from the Wolverine mine. This has almost 100 percent Silver but there is a tiny sploch of Copper on one edge. The silver has a patina ranging from near black to irridescent to brighter silver tones. Some of the silver at first glance looks copperlike. Some bits of matrix are included but this is nearly all metal. With low magnification some herringbone and crude crystals are seen as well. In outstanding condition this is a classic and heavy chunk of Michigan Silver!
Rhodochrosite with Native Silver
stock #8.1-419
Wudong mine, Liubao, Cangwu Co. Wuzoh
Guangxi, China
4.1 x 3.8 CM (miniature)
price: $1650


A big rich red translucent rhomb that is quite a good Rhodo on its own. However, this has the addition of wire silver and silver "skins" in several spots. The largest wire is about 7mm long and easily visible. This locality has produced only a few good examples of this rare association. This is an outstanding one. The crystal is transparent to translucent and glows with any backlighting. There is the typical internal stress fractures visible inside, a contact on the backside, and cleaving on the exterior as seen in the photos. Despite this it is a very attractive, displayable, bright and eyecatching crystal in the top percentile of quality from this location. A most desirable piece for a Chinese suite, Rhodo or Silver collection or just for the novelty and color!
Copper -Flattened spinel twins in branching array
stock #AC-097
Central Mine, Keweenaw Co.
Michigan, United States
6.8 x 5.1 CM (cabinet)
price: $700


A very fine copper branch, well crystallized and with great esthetics. This piece still has a few flecks of adhering matrix (which could be removed). The definition and sharpness of the flattened crystals is outstanding. It is hard to tell what the vintage of this is, but this is clearly a very old piece, sold by Shortmanns in the 1950's but perhaps over 50 years older than that. There is a lot of good copper in the market but this is really different and distinctive!
Beryl v. Aquamarine on Muscovite w. unknown
stock #8.1-099
Mt. Xuebaoding, Pingwu Co., Mianyang Pref.
Sichuan, China
6.8 x 5.7 CM (cabinet)
price: $325


The Xuebaoding Aquamarines are distinctive and have become rather common on the market, but good ones are much less common. This is a good example with deeper than average color and distinct sharp form. The single gem crystal is well placed esthetically on the matrix. As a bonus the dark area on the right includes a zone of redissolved Cassiterite, an unidentified green mineral similar to Mushingtonite, and an unknown Silver metalic mineral. As this location is not able to produce at this time, these will be harder to get and are still a remarkable bargain.
Silver with Rhodochrosite
stock #8.1-278
Uchucchacua Mine, Oyon Province
Lima Department, Peru
5.6 x 4.2 x 4.3 CM (miniature)
price: $1350


From a find about 20 years ago, this is a very striking example of well formed Silver growing from a Quartz and Rhodochrosite vug. Super esthetic, undamaged and with excellent contrast this is a very fine Silver example. Several wires over 2 CM long and relatively thick are complexly crystallized. One single sharply terminated Silver crystal is protruding 9mm from the quartz with spearlike form. The Rhodos are a series of stacked tiny rhombohedra and add a further contrast and a very special association. An old Dave Bunk label has a 1500.00 price tag on it, it is a fine specimen.
Afghanite
stock #8 AFG- 742
Sar-e-Sang District, Koksha Valley
Nuristan, Afganistan
5 x 4 CM (miniature)
price: $165


A sharp, deep blue terminated Afghanite sits on the top of a calcite matrix (FL). The Afghanite crystal is 2 CM long and 1.6 CM wide, it is broken in the back but the presenting side is undamaged. There are two other broken crystal frangments in the matrix. A nice example and a well presented termination of this once uncommon mineral.
Chrysoberyl (Twinned)
stock #8 BRA-691
Espirito Santo
, Brazil
3.6 x 3.3 CM (small miniature/ large thumbnail (toenail))
price: $800


A very fine prismatic central prism is joined by 2 other smaller "wing" crystals forming one half of the classic sixling twin. The crystals are all glassy yellow-green and gemmy with many inclusions. The central crystal is big at 3.3 CM in size and has minimal damage on the display side. The back of the specimen is contacted and broken but it is not in view from the display side. This is a good piece showing lots of form and character!
Tourmaline (elbaite) with hollow termination
stock #8 DK -092
Palo Alto, San Diego Co.
California, United States
3.4 x 2.6 CM (small miniature/ large thumbnail (toenail))
price: $700


From the classic California pegmatites this is a very different and remarkable tourmaline! The bi color crystal is sharp, glassy has some "cats eye" fibers and a lot of gem clear areas. However what makes this exceptional is the central hole in the center of the termination. This hole is roughly triangular in cross section, like the exterior of the crystal. Furthermore, it is striated on the inside and runs thru more than half of the crystal before it ends at a "negative termination" . The crystal has some very nice color, minimal damage (not eye visible) but the hoppered area is what makes this really impressive. Good for any gem crystal collection or as a conversation piece.
39 specimens found
1 | 2 | 3 | 4 | 5 |