Purple "Pimpleback" Shell 8x16mm Faceted Rectangle Bead - 15-16 Inch Stone Type_Eudialyte There are 37 different mica

There are 37 different mica minerals

*NOTE - The links on this chain are soldered

Black Eye Agate is a variety of Sardonyx which has a Sard base

Since gemstones (natural

Labradorite is usually gray-green

Purple "Pimpleback" Shell 8x16mm Faceted Rectangle Bead - 15-16 Inch Stone Type_Eudialyte There are 37 different micaA "pimpleback" is a freshwater mussel (Cyclonaias pustulosa) common in North American rivers, characterized by a thick, yellow brown to brown shell covered in bumps (pustules). While not typically purple, the inner lining (nacre) can be iridescent, and related species in the pimpleback complex are sometimes found in Texas waters.