Mica 8mm Round Green - 15-16 inch R1766 calcium and aluminum with trace

calcium and aluminum with trace amounts of iron

Tourmaline occurs in nearly every color in the rainbow and its name derives from “turmali

” meaning “a stream of lava

white and occasionally gray or brown

so named because the ancient Incas believed the stone to be the petrified blood of their ancestral rulers

Mica 8mm Round Green - 15-16 inch R1766 calcium and aluminum with traceMica is a mineral name given to a group of minerals that are physically and chemically similar. They are all silicate minerals, known as sheet silicates because they form in distinct layers. Micas are fairly light and relatively soft, and the sheets and flakes of mica are flexible. Mica is heat resistant and does not conduct electricity. There are 37 different mica minerals. The most common include: purple lepidolite, black biotite, brown phlogopite