Rocks & Minerals
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Minerals
Facts About 20 common minerals
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Fluorite
Calcite
Orthoclase Feldspar
Agate
Amethyst
Rose Quartz
Milky Quartz
Gypsum
Talc
Malachite
Azurite
Olivine
Galena
Hemitite
Magnetite
Pyrite
Sulfur
Biotite Mica
Muscovite Mica
What is a mineral??
Three Common Rocks
Igneous Rock
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Granite
Migmatite
Sedimentary Rock
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Limestone
Sandstone
Metamorphic Rock
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Schist
Marble
The Rock Cycle
Milky Quartz
Milky Quartz is a white quartz. Milky Quartz is usually massive ,but well-formed crystals are very common. All Quartz has a 7 on the Mohs Hardness scale, and can scratch glass easily. Quartz has no cleavage, but can break with a fracture.
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