Measurements: 40 x 21 x 16 mm
Description: A quartz specimen consisting of a few crystals (some double terminted) apparently fused into one, with a minute group of quartz crystals nestled between two termination points on the wide side of the specimen. There are lovely gas inclusions, and a small rainbow, seen when tilted in light.
termination point has a few extremely minute nicks, barely visible with
the naked eye. The specimen has a thin flaw.
Chemical Composition: SiO2
Hardness on Mohs Scale: 7
Specimen Code: NBB 105
US $ 40