Mica 6mm Round Green - 15-16 inch red botswana agate Agate has been prized for

Agate has been prized for its beauty throughout history

Rhodochrosite has a pearly luster and often displays banded patterning

It is highly regarded for its beautiful blue color flecked with gold inclusions of pyrite

Topaz occurs in a wide range of natural colors

but can be distinguished by its structure and its lower relative hardness

Mica 6mm Round Green - 15-16 inch red botswana agate Agate has been prized forMica 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