Purple Mica Muscovite 8mm Round - 15-16 Inch R0913 Turritella Agate’s rich brown and

Turritella Agate’s rich brown and black colors are patterned with the fossilized remains of sea creatures millions of years old

Preservation is enabled by a lack of oxygen

mother of pearl

Pietersite is composed of Tiger Eye

A form of chalcedony made of quartz

Purple Mica Muscovite 8mm Round - 15-16 Inch R0913 Turritella Agate’s rich brown andMica 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