Black Mica 8mm Round A Grade - 15-16 Inch Tumble This later combined with additional

This later combined with additional silica in the groundwater as well as the minerals that give Mookaite its distinctive colors

brown phlogopite and clear muscovite

It is most often found in the Baltic region

The inclusions can be so dense as to make the clear Quartz nearly opaque

Black Mica 8mm Round A Grade - 15-16 Inch Tumble This later combined with additionalMica 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