HOLD Sphalerite with Quartz
stock #HOLD 8.1-439
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! Lustrous 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!
A very old and very fine Tri-state classic! Ex collection of the Arizona-Sonora Desert Museum, This is a true top shelf specimen. Sphalerites here reach to 4 CM and are exceptionally well formed. The smaller crystals are a fine ruby red (rubyjack) while the larger ones are darker and coated with Chalcopyrites. Some faces are noticeably iridescent and over all the luster is outstanding. The only damage is at the outer edges where it would be expected, the display face is pristine, three dimensional and very esthetic. The old Tri-state area produced a lot of materials in its time, but this quality was excellent even in its heyday.
Impressive and lustrous, this is super esthetic! A cluster of very sharp undamaged Sphalerites reaching 2.7 CM are stacked in a very nice arrangement. The real interest are the sprays of delicate needle Quartz that decorate the piece and add lots of contrast. As a bonus there are some good Galenas as well. This can be displayed from several angles. Despite some damage to a few Quartz needles, this is still a a top shelf piece from a very important location that is now closed.
A very fine, large (3.9 CM) sharp and glassy Sphalerite sits on the matrix of Dolomite coated with Quartz and minor Calcite. When back-lit the Sphalerite glows Orange Red. The crystal is complete with no damage. Very esthetic.
Sphalerite on Quartz
stock #7 CNA-492
Shuikoushan Lead Zinc Mine, Changning, Hengyang Pref.
13 x 10.6 (cabinet)
Deep red complex crystals of Sphalerite sit on a plate of sparkling reddish quartz. Some are claiming the quartz is red due to inclusions of Sphalerite, I am not sure about that. There is galena here too and the back of the piece is crystalized calcite. The largest crystal is 3.3 cm and with good backlight it glows a rich red. No damage and great luster, this looks like globs of jelly on matrix. Way above average!!
Large, lustrous crystals of undamaged Sphalerite perched on a contrasting quartz matrix. Individual crystals to 3.8 CM that are complex and intergrown with many distinct faces. The color is a dark red to brown-black and the smaller crystals are gemmy translucent while the larger ones are only on the edges. This is really worth far more than the price!