Calcite on Prehnite Crystal Cluster | Double Terminated Calcite | 77 grams | Mumbai, India | SO24 H6 Size: 7x5mm

Size: 7x5mm

Size: 10x8mm

97 Lbs Details: Volcanic activity Mortlake

This is a strand of lovely green Aventurine beads with an overall length of 38 cm (15 inch)

This is an incredible slice of the Big Rock Donga meteorite (MB 71) found in Nullarbor

Calcite on Prehnite Crystal Cluster | Double Terminated Calcite | 77 grams | Mumbai, India | SO24 H6 Size: 7x5mmCalcite is found throughout the world in sedimentary, metamorphic, and igneous rocks. Some geologists consider it to be a "ubiquitous mineral" one that is found everywhere. Calcite is the principal constituent of limestone and marble. On this particular specimen there are 2 double terminated calcite points. Penhnite can form prismatic, tabular, or pyramidal crystals, but usually occurs in botryoidal, reniform, stalactitic, granular, or compact habits.