It has been several years since any specimens have come from the Chasen Mine, I hear it is fully flooded now. This is a fine example of the quality the mine was capable of producing. A sizable (4 CM) gemmy Fluorite has a rim of epitaxial Dolomite crystals making a "nest" along two edges. This sits on sprays of Mangano calcite that are dusted with micro pyrites. Only very minor chipping that is not distracting, and nice FL as well. There is a little similarity to the material from the nearby Xinghuapu Mine, but the differences are distinctive. Suitable in any collection but especialy good for Fluorite suites or Chinese collections.
Adularia (manebach twin)
Cavradi gorge, Tujetsch, Surselva Region
10.9 x 4.1 CM (cabinet)
A wonderfully esthetic example of Swiss Adularia, a well defined Manebach twin set on a slender shard of matrix. Excellent condition, sawn on the back to remove this without damage. You don't need to be a Feldspar collector to appreciate the setting of this twin!
A very large and rich Silver from the Wolverine Mine. This has almost 100 percent Silver but there is a tiny splotch of Copper on one edge. The silver has a patina ranging from near black to iridescent to brighter silver tones. Some of the silver at first glance looks copper-like. 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!
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!
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.
3.6 x 3.3 CM (small miniature/ large thumbnail (toenail))
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!
stock #8 AFG- 742
Laduar Medam, Sar-e-Sang District, Koksha Valley, Khash and Kuran Wa Mun
5 x 4 CM (miniature)
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.
Silver with Rhodochrosite
Uchucchacua Mine, Oyon Province
5.6 x 4.2 x 4.3 CM (miniature)
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 spear-like 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.