Sphalerite - gemmy
Rucheng Mine, Caojia, Nuanshui, Chenzhou
7.9 x 6.8 x 2.9 CM (cabinet)
Worldwide mix summer
A nearly pure plate of large crystals up to 3CM across that are transparent in many areas and have a rich dark red hue. A single Quartz crystal on one edge is the only non Sphalerite part of this specimen, there is no matrix. In very clean condition, all the crystals on the display side are undamaged, contacted on back only. From the famed finds made in the 2000-2005 era in Hunan province. These localities are all closed now and specimens have become quite rare on the market in this fine quality.
A giant Sphalerite crystal stands on a mix of Quartz crystals and Sphalerite. Bright luster, translucent and in fine condition, a dramatic specimen. The complex faces in some photos can seem like bruises were light reflects off many facets, but this is clearly pristine when seen in person. From finds in 2002-3 at Rucheng Mine, at that time the locality of was given as Shuikoushan which is a Zinc mine nearby, but that was purposely misleading. While some large Sphalerites did come from both localities, this habit is was unique to Rucheng. These places are no longer mined and big crystals like this are long gone. A modern Chinese classic and a really impressive Sphalerite, cleaves on the backside but undamaged front, visually perfect on display.
Sphalerite- Gem crystal
ZCA Mine number 4, Balmat, Balmat-Edwards District, St. Lawrence, Co.
1.2 x .8 x .4 CM (thumbnail)
A small, gem clear single crystal of amber colored Sphalerite. Complete and undamaged from the remarkable finds decades ago at the ZCA (Zinc Corp. of America) mine in Balmat, NY. A "textbook quality" crystal, despite the small size this has good eye-catching luster and color.
Dark red gemmy Sphalerite crystals with typical complex twinning are well exposed on contrasting matrix. Excellent luster, the Sphalerites with backlighting glow a bright red, they can seem very dark without it. From vintage 2003 finds at Shuikoushan in excellent condition with no visible damage. The matrix is druzy quartz that has a reddish hue. Very esthetic, these were once found in large quantities but few were this choice, they are no longer available.
Very showy cluster of orange to yellow Sphalerite crystals with complex forms. Minor Dolomite is also present but nearly all of this is Sphalerite. No damage and a choice example of this find from many years ago, the crystals reach 1.5 CM across. Very uncommon on the market today these were among the most attractive mineral specimens from Ontario at one time.
A fine small cabinet matrix hosting several perfect gem clear Sphalerites on needle Quartz with minor Galena, Pyrite etc. The largest cluster is 1.6 CM and all are glassy yellow green color that is classic for this material. From finds in 2014. The name Cleiophane is not an approved specie of course but it is perhaps the most desirable variety of Sphalerite.
A superb, specimen from a classic locality, Ex Harvard University , Dr L.C. Wyman and Doug Ervin collections. Perfect and sharp textbook form Sphalerite crystal 3.3 CM across is perched estheticly on matrix. Complete on all sides this has excellent display impact. Classic Tri-state specimen that turns a black mineral into a striking presentation.
Sphalerite and Pyrite
Nanisivik Mine, Nanisivik, Baffin Island
5.4 x 4.5 x 2.6 CM (cabinet)
Pre Holiday 2017
A well formed specimen of both Sphalerite and Pyrite from a location not seen very often but has produced some fine things like this. Great three dimensional structure and separation of individual crystals, this is as good an example as I have ever seen from this remote locale. In very good condition, the pyrite are in several habits and forms while the Sphalerites reach up to 2 CM and have nice rounded faces. A really nice small cabinet piece.