Single clear cube of Fluorite densely filled with metallic needle crystals of Boulangerite. There are also a few tiny gemmy Scheelites and Calcites scattered on the sides and edges. With a loupe it is impressive to see that there are several perfect clear golden Scheelites inside the Fluorite, with excellent clarity. These Scheelites also have Boulangerite growing inside of them, in an arrangement that I have not seen ever before. The specimen in vintage 2002, and a very special oddity.
Fluorite & Quartz
Yaogangxian Mine, Yizhang County
5.2 x 4.5 x 3.8 CM (cabinet)
Post Tucson 2015
Sharp and clear Fluorites with some unusual (for Yaoganxian) frosted faces sit nicely on unusual flatted Quartz crystals. Obtained in China in 2002 at the peak of Yaoganxian's productivity. In excellent condition, this has a different look than most YGX pieces and is quite esthetic.
A Yaoganxian Scheelite that is really attractive and has very sharp individual crystals to 1.3 CM. Great luster and translucent Scheelite contrasts well with the crystallized Dolomite matrix. A few crystals at the edges are incomplete they seem contacted, but the main specimen is in excellent condition. The entire specimen is formed over FGerberite crystals that are responsible for the bladed shape of the whole piece. The Ferberite is encased inm Dolomite and only visible at the base where it was removed.
Fluorite on Quartz
Yaogangxian Mine, Yizhang County
8.9 x 1.1 x 4.9 CM (cabinet)
pre Tucson 2015 update
A choice, sharp, clear Fluorite cube is neatly sitting like a jewel on a flattened quartz plate that is itself complexly crystalized. An older, classic style Yaoganxian specimen Ex. Terry Szenics collection, this better quality is no longer produced and the mine is shut down.
If you know or collect Yaogangian, you can see this is a VERY fine Scheelite multi-specie piece! In excellent undamaged condition, this is densely packed with bright, lustrous and transparent/translucent Scheelites with honey brown color. This quality and esthetic is a rare for the locality. We selected this piece at the mine in 2006. There is nothing like this on the market now. Yaogangxian is the most famous and significant locality in China for collectors. Good Scheelite was always rare from there, this one is exceptional and the mine is now closed.
An important Chinese specimen and a rarity, this Hubnerite is from the one time small find at Yaoganxian in 1998. It seems these are also the largest Hubnerite crystals known from China, at 9.4 CM! Ferberite (the analog) is famous from Yaoganxian, it has produced some of the worlds best. However, verified Hubnerite is only known in a few specimens. The crystals here are attractively perched on a long Quartz prism and this displays well from either side. The color is a lustrous black to a deep brownish-red. Strong lighting shows red translucence on thin edges of the crystals as is typical for Hubnerite. The crystals are complete, somewhat jagged showing parrellel growth with full terminations. A dusting of micro Helvites (not confirmed) add a color contrast. Remarkably this specimen has no noticable damage on the delicate Hubnerite crystals. For any comprehensive Chinese collection or a Yaoganxian suite, this is something really special!
There are thousands of fluorites from the great Yaoganxian Mine, but very few are of this calibre. Incredible quality for the size and perfection. A single 4 CM glass clear, undamaged zoned cube sits on a 3 dimensional matrix perfectly. Top quality esthetics far better in person! This stands out from the rest and while it is a bit more pricey than average specimens, this quality is almost impossible to find in China today. The only comparable specimen I saw recently at a show was well over twice this price!
Simply put, this is a huge, gleaming, esthetic and fine Arsenopyrite from Yaoganxian. Arsenopyrite is not rare, but great form with huge, undamaged crystals are. The largest here is 6.3 CM and doubly terminated. Brilliant luster, nice architecture, impressive display face and outstanding for the species. I have never seen a better example for sale from any locality. Yaoganxian Arsenopyrites rank with the best, I think eclipsing Panasquira, Cornwall and Peru. This specimen is 2002 vintage. Contacting and removal damage is limited to the rear base area, not visible on display. Although this might seem expensive for a common, metallic mineral, this is an incredible value for a top display piece!