mineral
Quartz with Mica
Silicon Dioxide (Quartz, SiO2) with Muscovite/Biotite Mica
Hardness of 7 for quartz on the Mohs scale, color ranges from clear/white to yellowish-brown due to iron staining, with silvery-white or dark flaky sheets of mica. Luster is vitreous to pearly.
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Physical properties
Hardness of 7 for quartz on the Mohs scale, color ranges from clear/white to yellowish-brown due to iron staining, with silvery-white or dark flaky sheets of mica. Luster is vitreous to pearly.
Formation & geological history
Formed in hydrothermal veins, pegmatites, or metamorphic environments where silica-rich fluids crystallized alongside sheet silicates.
Uses & applications
Used in mineral collections, lapidary work, and decorative stones.
Geological facts
Mica sheets within the quartz give it a distinct reflective, glittering appearance when turned in the light.
Field identification & locations
Easily identified by the hard quartz matrix combined with the shiny, flexible flakes of mica embedded within fractures or pockets.
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