Pistachio Calcite obelisk 155mm 465g good luck These fascinating specimens weigh between

These fascinating specimens weigh between 12 and 18g

This White Jade hand-carved elephant weighs 98g

The Bowtie may be Stilbite

These colourful tourmalines are members of the Elbaite mineral group

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Pistachio Calcite obelisk 155mm 465g good luck These fascinating specimens weigh betweenPistachio Poise This Pistachio Calcite obelisk 155mm weighs 465g. Pistachio is a rarer variety of Caribbean Calcite and is actually Aragonite. It is found in Pakistan. Aragonite is a calcium carbonate mineral, formed in limestone caves and around hot springs. It has the same composition as Calcite, with a more compact structure. It is often recognised as a twinned pseudo hexagonal prismatic crystal. Twinning results from interruptions during the