Green and Black Mica Muscovite 12mm Round - 15-16 Inch Stone Type_Magnesite commonly known as Limestone

commonly known as Limestone

There are 37 different mica minerals

Ruby has long been considered one of the most beautiful and valuable gemstones on the planet

newly discovered mineral from Indonesia that is an accidental byproduct of industrial smelting and is believed to be leftover slate from a gold mine

scorzalite

Green and Black Mica Muscovite 12mm Round - 15-16 Inch Stone Type_Magnesite commonly known as LimestoneMica 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