Cassiterite on Quartz amber A six-inch display specimen from

A six-inch display specimen from Sferlun is certainly hard to come by and the majority of the hundreds of crystals on this attractive specimen are damage free

The twins on this specimen are some of the largest I’ve seen from the locality

The species seen within include termites (Isoptera) and tiny flies (Diptera)

Colorado was a prominent figure and collector of Colorado minerals

It is incredibly rare to have FIVE individual phosphate species all on one specimen

Cassiterite on Quartz amber A six-inch display specimen fromThis particular piece is a superb quality Cassiterite from the standpoint of luster, sharpness and the fact that there are TWO distinct twinning habits on the same specimen. An impressive, classic, sharp, lustrous group of black to gemmy golden color cyclic twinned crystals sit atop prismatic white Quartz matrix. The most interesting aspect of the piece is the fact that there are a few RARELY seen drillbit habit twinned groups. Its not common to find