A wonderful esthetic for a dark mineral like Bournonite is to be displayed on on colorful matix, and this piece does that well. Several sharp, prismatic and lustrous silvery crystals of Bournonite are well placed on a sparkling purple fluorite and quartz mixture. A few matted hairs of Boulangerite are in evidence as well. There is one Bournonite that is broken off (not very distracting tho) all the rest are quite clean by eye and only show some edge chips at 10X magnification. A very good matrix Yaoganxian piece and a good value.
Tantara Mine, Shinkolobwe, Central Area
Democratic Republic of Congo (Zaire)
8.9 x 7 CM (cabinet)
An incredibly attractive mineral! Brilliant and lustrous crystals to 1.5CM with top color are packed in a vug that is rimmed with Dioptase and some blue Shattuckite. No damage to the display area and main crystals but there are a few tiny contacts at the outer edge of the piece that are not easilly seen. Really a killer for form and with bright, wet looking luster, this is a great value for the price. I have not seen anything of this quality in any recent lots from the DRC.
A large and superb gemmy scepter crystal with internal movable bubbles. The head is glass clear, with light smokey color, and razor sharp. This also has milky white stem for contrast and overall in in super shape. For the size (4 " tall) it is remarkable to have such clarity and condition. We have seen and sold a lot of fine Cong Ly quartz but this ranks as a top piece for this locale and a very fine scepter for anyplace! We originally sold this piece and it has returned in a trade deal, it was obtained on our Fall 2002 trip to China, we have not been able to get any material of this quality for the past 3 years.
A large, heavy mass that's nearly all silver minerals, this is a rich specimen covered with the ropey wires and radiating arrays of Kongsbergite and dull black Acanthite showing a few crystals but mostly in masses. Kongsbergite is a mercury rich silver (only about 5% the rest is silver) it is relatively uncommon, and some of the wires here may be pure silver as well. There are only a few tiny bits of quartz to be found on this otherwise it is an all silver specimen.
A very attractive light lilac/ violet gem crystal of Scapolite from this important locality. This is actually 2 crystals grown together with the terminations staggered and showing great glasslike luster. No damage by naked eye but with 10X magnification there are some very tiny contacts and a very insignificant chip that need to be mentioned. A very nice example of a mineral that is usually quite nondescript!
stock #7 BRAZ 212
Irai, Alto Urugual region
Rio Grande do Sul, South Region,
12 x 9 CM (cabinet)
Two perfect radiating clusters (suns) joined together in an impressive and esthetic piece of glasslike quartz. No damage at all, a fine purple hue that grades to a clear outer edge the piece is fully transparent and glows with even a hint of backlight. Not the typical quality, this is a fine mineral specimen for a fine collection.
A large and fine single Octahedron of mint green Fluorite with the very desirable "stipple faced" or melted look on the crystal faces. This Alpine Fluorite is sizable and impressive from a location that has not produced good material for many years. Pasto Bueno Fluorites are quite highly regarded, and and also rather distinctive. This one is in fine shape on the display side but it is cleaved where it was removed on the underside. Displays very well and a bargain for such a large crystal.
Pyrite (striated cubes)
stock #7- AC 180
Huanzala Mine, Huallanca district
Dos de Mayo Province, Huanuco Department,
11.8 x 9.2 CM (cabinet)
An fine, unusual and well balanced older piece from what has become a very famous mine for great pyrites. This form is not like the material that Huanzala has produced for the past decade, this has sharp slightly modified cubes showing pronounced striations. There are many great forms that Huanzala has produced and some fine suites have been developed to showcase them. This would be a fine addition to such a suite, or for any collection of good esthetic minerals. The cubes are sizable, the largest 6.5 CM. Minimal damage, the main crystals are very clean, there is some chipping and periferal damage on the rear and lower areas, despite that it is still very esthetic and presentable.