A pinkish matrix of crystalized Microcline is host to many yellow- green crystals of Fluorapatite many of which are doubly terminated. These crystals are a little greener than the classic Mexican Mercado examples and with a very different matrix. This is not a common locality. There are some broken crystals evident.
Franckeite (var Potosiite)
San Jose Mine, Oruro
7.5x4.6 CM (small cabinet/ large miniature)
Potosiite is the rare Tin poor variety of the rare mineral Franckeite, and was a separate species until it was discredited in 1997. It is still a very rare Sulfide with crystals larger than micros considered huge. From a small find of the worlds largest and best crystals at the San Jose mine, this is a top example with individual crystals to 1.3 cm. For this rare and ugly mineral this is a true killer and even esthetic! This was rated as one of the best 7 pieces found.
An incredible specimen! A huge doubly terminated Gem crystal with outstanding color, in exceptional condition and form. This is a very, very fine crystal that is a full 10 inches long, and has top rich color rangeing from a pale lilac to a rich deep purple/ pink. Composed of several parrellel growths showing staggered terminations this piece has great visual impact and has no visible damage! Great value for this piece as it is nearly 100% cuttable gem, and it can be displayed several ways.
105x99 CM (42x38.5") When assembled ()
The ROCKSOLID display is a portable, convertible and ingeniously designed system that is perfect for mineral shows or almost any retail setting. The units incorporate dimmable low heat halogen lights that can be used in several positions. The unit has rugged construction of top grade Baltic birch and is stackable to use as free standing cases or separately as table displays. The basic display packs down into a compact 4.8" thick bundle. Amazingly, the set up or take down is done in less than a minute. The unit is complete with all hardware, glass shelves, lights and instructions. After the initial setup (easy to follow details included using simple tools) the ROCKSOLID system is remarkably versatile. The dimmable lights are positionable for top, back and underlighting, while the shelves are adjustable exactly as needed. If you want to present fine minerals (or almost any collectable or merchandise) this unit is perfect for travel but works great as a permanent display fixture too. Please contact us to confirm availabilty and to quote shipping. The ROCKSOLID is manufactured for a lifetime of rugged use and designed to look elegant in any setting.
From another classic locale this older miniature has well formed orthohombic crystals in an esthetic and oriented arrangement. These mines are long closed and have produced some of the best Sulpher ever found. This is a good example of the crystal form that made this location famous and is affordable compared to most.
Elbaite (tourmaline group)
stock #13-F 312
Santa Rosa Mine, Itambacuri
3 x 2.1 CM (small miniature/ large thumbnail (toenail))
A sharp and bright gem crystal with an electric green termination. With even a touch of backlight this glows. Although this is broken at the base where it was removed from the rock, the rest is reasonably clean. By naked eye there is no damage to the main crystal, but with 10X magnification chipping can be seen. The same is true for the tiny sidecar crystals. A good piece for a reasonable price.
Yaogangxian Tungsten Mine, Yizhang County
3.5x3 CM (small miniature)
Very bright, metalic and with fine luster, this bournonite miniature shows excellent form with a pleasing contast to the matrix. Much better than usual condition for this delicate, brittle mineral, however there is some chipping and contacting like all of these have. The main crystal shows a fantastic cogswheel form. Since well crystalized Bournonite is very uncommon, the better Chinese examples are already becoming classics. For now, this is a bargain!
A pre-1930's piece from the classic location of Bad Ems, best known for fine pyromorphites. This is a sharp, glassy cerussite with only minor edge chipping. It is rare to see minerals of this quality available from these old European locations.