Measurements: 77 x 44 x 34 mm
Description: A few cactus quartz crystals with greyish colour, sit on a quartz matrix, together with a few broken crystals. Two of the broken crystals show clearly how the cactus quartz crystals are formed around a quartz core.
The intact few crystals' terminations have a few minute to small nicks, while the rest of these crystals have a few nicks, and the matrix has a few flaws.
The specimen displays well on a flat surface, all-round.
Weight of Specimen: 101.0 g
Chemical Composition: SiO2
Hardness on Mohs Scale: 7
Boekenhoutshoek, KwaNdebele, Mpumalanga Province
Specimen Code: KW 023