RARE BOAT SHAPED QUARTZ AFTER ANHYDRITE PSEUDOMORPH
Place of origin: Rio Grande do Sul - Brazil
Geological period: Cretaceous
Age: 120-140 million years old
Height (Including Stand): 17 cm
Dimensions: H 14 cm x W 31 cm x D 15 cm
A beautiful formation of unusual quartz pseudomorphs after anhydrite. The quartz crystals have formed over anhydrite crystals, which subsequently dissolved, leaving tan coloured quartz crystals with hollow cores. The whole resembling a boat with quartz sails.
