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 delicate specimen in excellent condition with very pale pink (mangano) Calcites on a matrix of needle Quartz, lustrous Sphalerites and Pyrite. An attractive and nicely composed specimen from the great Madan deposits of Bulgaria. To my taste the Sulfide deposits of this region have produced the most esthetic examples of many species. This is a small but striking piece with quite remarkable slender Quartz that are decorated with tiny crystals of Sphalerite as well.
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.