Quartz on Calcite
Huanggang Mines, Hexigten Banner, Inner Mongolia A.R., China
Small Cabinet, 9.6 x 5.7 x 5.7 cm

So many mineral specimens from China are ridiculously artistic and this one is no exception! Despite muted colors, it leaps out for the geometry and combination of forms: A green, hexagonal, hedenbergite-included quartz "cone" forms the centerpiece of this specimen and it sits atop a cluster composed of numerous, small quartz crystals of similar habit. The quartz rests on a substrate of paper-thin, densely stacked, subhedral pale green calcite plates. Other green quartz crystals are present on the back of the piece and within the calcite sheaves. The "quartz cone" is observed to be a pyramidal termination only with no evidence of prism faces, vaguely resembling a "beta quartz" crystal. I have been told that these crystals are not true high-temperature beta-quartz crystals, but rather quartz that seems similar in shape to that rare style. Nevertheless, it is stunningly geometrical, however formed. Each of the six terminal faces consist of a myriad of triangular-shaped growth forms that glisten in ambient lighting. A uniquely attractive small cabinet specimen! Purchased in China, in 2018.