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Smoky Quartz on Microcline
Pegmatites are exceptionally coarse-grained rocks born of molten rock, or magma, beneath the Earth's surface. They produce many of the crystal giants of the mineral kingdom. Over 300 minerals come from pegmatite deposits. Some of these minerals are extremely rare, form exquisite gem-quality crystals, are found only in pegmatites, and provide important industrial materials. This growth of smoky quartz and microline is just one example of the diversity and beauty of the crystals that form in pegmatites.
Group: Oxides
Image Number: MSA 98
Catalog Number: 08655500
C. S. Bement & F. W. Clarke
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