Prehnite Faceted 5x8mm Rondelle Beads

Prehnite Faceted Rondelle 5x8mm Gemstone Beads (~80pce Strand) - 40cm/16'" Strand.

Prehnite (also known as Grapestone or Grape Stone) was the first mineral to be named after someone. H. Von Prehn discovering Prehnite in 1774 at the Cape of Good Hope in Africa. Prehnite is often a waxy bright green crystal, resistant to pressures and scratching. It is composed of aluminum, calcium and silicon.