Prehnite
+ 17 varieties

Prehnite

Related Articles

Prehnite takes its name from Colonol Hendrik Von Prehn, who discovered it in 1774…
July 6 2007

Lava beads refer to beads that are made from volcanic material, cut and faceted into a variety of shapes and sizes. Lava beads are very lightweight, and most tend to float since they are made of hardened magma and...
July 29 2009

Occurring naturally and available in countless varieties, gemstones have been used by humans for ornament since the dawn of civilization…
April 18 2007