Jet 4mm Rondelle Bead - 15-16 Inch September Ametrine is quartz that occurs

Ametrine is quartz that occurs in bands of purple and yellow

Topaz occurs in a wide range of natural colors

Common Opal is generally opaque

This collection features material sourced from the Joo-shahn County mines

making them a great way to incorporate upcycled elements in designs

Jet 4mm Rondelle Bead - 15-16 Inch September Ametrine is quartz that occursJet is a mineraloid gemstone, formed from wood that has decayed under extreme pressure, over the course of millions of years. Because it is relatively soft, it is easily carved and shaped. Jet is made from wood, and this can be confirmed under magnification, as it preserves the original cellular structure of the wood from which it formed.