Measurements: 46 x 34 x 28 mm
Description: A specimen
consisting of schorl and quartz crystals on a feldspar and quartz
matrix. Some of the quartz crystals have a partial coating of some (to
us, unknown) mineral, light greyish in colour.
Damage appears to be confined only to the edges of the specimen, which displays well on a flat surface, all-round.
Weight of Specimen: 31.1 g
Hardness on Mohs Scale: 7
Specimen Code: BARG 021
US $ 15.