Measurements: 58 x 40 x 13 mm
Description: This is a most unusual flat group of crystals. It appears to be two main crystals joined back to back with a host of lesser crystals hitching a ride.
The specimen is undamaged except at the bottom where it parted from its matrix. Image top right gives a side view of the specimen.
Weight of Specimen: 25.5 g
Chemical Composition: SiO2
Hardness on Mohs Scale: 7
Location: Vredendal Quarry, Western Cape, South Africa.
Specimen Code: SWCV 014
US $ 60