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The different species are pyrope
the resulting rock is dark gray to deep black in color and riddled with pits and holes where air was trapped in the stone
the mineral was named for French paleontologist Eugene Durmortier (1803 to 1873)
The hematite inclusions are responsible for the stone’s color
Arizona — famous for the outstanding robin’s egg blue color and quality of their rough
Pink Mica 10mm Round A Grade - 15-16 Inch Australian Chrysoprase The different species are pyropeMica 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
