Aragonite, Calcite - Penrice marble quarry, Australia - 10.8 x 6.4 cm
Mineral: Aragonite, Calcite
Locality: Penrice marble quarry, Barossa Valley, Angaston, North Mount Lofty Ranges, South Australia, Australia
Dimensions: 10.8 x 6.4 cm

Description: Calcite crystals selectively covering aragonite.