Muscovite
The most common nonferromagnesian member of the mica family is muscovite.
Decompression and Exfoliation weathering are common in Mica and Shale.
Ferromagnesian silicates are those minerals containing ions of iron (iron=ferro) and/or magnesium in their structure. Because of there iron content, ferromagnesian silicates are dark in color and have a greater specific gravity, between 3.2 and 3.6, than nonferromagnesian silicates. The most common dark silicate minerals are olivine, the pyroxenes, the amphibloes, drk mica (biotite), and garnet.
pegmatite
The mica group of minerals.
The most common nonferromagnesian member of the mica family is muscovite.
Decompression and Exfoliation weathering are common in Mica and Shale.
Decompression and Exfoliation weathering are common in Mica and Shale.
Ferromagnesian silicates are those minerals containing ions of iron (iron=ferro) and/or magnesium in their structure. Because of there iron content, ferromagnesian silicates are dark in color and have a greater specific gravity, between 3.2 and 3.6, than nonferromagnesian silicates. The most common dark silicate minerals are olivine, the pyroxenes, the amphibloes, drk mica (biotite), and garnet.
Biotite is the most common form of mica.
muscovite
The spelling mica is a word, a soft rock. There are no common anagrams.
quartz common use
Mica does not consist of a single element. Muscovite, one common kind of mica, contains potassium, aluminum, silicon, oxygen, fluorine, and hydrogen. Biotite, another common variety also contains iron and magnesium.
That would be mica...and it's spelled "quartz"
pegmatite
both break in one preferential direction