An attractive Sphalerite crystal cluster that has flower-like form is perched on a contrasting matrix. The color looks black at first glance but with strong lighting it is a translucent dark red-brown (rubyjack) color. The luster is extra glassy bright and the quality is fine. The front of the specimen is in excellent shape damage wise, the back and one edge is contacted which is not seen from the display side.
Sphalerite specimens from Elmwood are common, but esthetic specimens of this caliber are quite rare to find. A lot of display impact for the size.
Sphalerite with Dolomite, Galena
Huaron Mines, Huaron Mining District, San jose de Huayllay District
5.9 x 5.5 x 3.2 CM (cabinet)
pre Tucson 2015 update
Dark orange Sphalerite in well formed crystals perched on a contrasting Dolomite in an esthetic arrangement. This comes from a small find in the late 70's at Huaron that was unique. The crystals are translucent and glow with backlighting, but in normal light this still displays very well as seen here. A good example of this old find that is very rare on the market.
Exceptional bright luster and contrast on this esthetic specimen from the Madan area. The condition is excellent, this is clearly not a typical piece and displays very well. Black Sphalerite is not normally an eycatching mineral, this one is mirror bright and well composed, the calcite add a fine contrast.
An exceptional, well formed Sphalerite from a long gone classic locality. Big, textbook clustered crystals reach 3.6 CM and show elegant twinning. This is far better than most "good" specimens from Tri state, it is admittedly more expensive but a very good value for the price. While this is a "black, ugly" mineral the overall esthetics and luster on this one makes this an remarkable and desirable addition for any collection.
A much better than average tri-state classic, ex John Marshall collection. Crystals to 3.6 CM on a thin matrix plate range in color from translucent ruby red to black. Pitcher Field produced huge numbers of Sphalerites 40+ years ago, it is now rare to see good ones. In fine condition, well composed and far more attractive than is typical.
Joplin Field, Tri State District, Jasper County
8.6 x 5.4 x 3.6 CM (cabinet)
A brilliant and pristine red Sphalerite from the classic Tri State district. Even though this was once easilly available it was not usually as attractive as this piece. The mines have been closed for decades now and is now quite uncommon to find any good USA "ruby jack". A sizable vug of 7.5 Cm across is packed with lusterous sparkling Ruby color crystals that reach 1.1 CM however most are smaller. No damage, great esthetics and all crystals are translucent. There are some saddle shape Dolomites and a sprinkling of Chalcopyrite as well for a nice contrast. The back of the matrix block has a nice display of Sphalerite as well (6 CM across), and would be an excellent piece on its own. Very classy color and great eye appeal as well as being an affordable classic US piece!
A big (2.9 CM) yellow-green Sphalerite compound crystal sits perfectly on a matrix of galena and some quartz.. Outstanding condition, this is rare older Madan material that is not often available.
Sphalerite with Quartz
Krushev Dol Mine, Madan, Rhodope Mts.
10.4 x 7.5 CM (cabinet)
As a rule, black Sphalerite is not a very desirable mineral, but this one is something special! Lusterous and sharp glassy Sphalerites to almost 3 CM are decorated with treelike growths of slender quartz crystals. In great condition and with killer esthetics, the Sphalerites are well positioned and show complex growth hillocks on many faces. Careful examination finds only minor edge wear on some sphalerites, nothing distracting from the impact of this piece. Great for this specie and exceptional for this famous mineral region!