12 Terms
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General mining
General mining related terms and definitions in minerals and related activities.
Industry: Mining
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General mining
Beryl
Mining; General mining
A greenish mineral that usually lets light shine through it and is found mostly in igneous and metamorphic rocks.
Emerald
Mining; General mining
A transparent, green form of the mineral beryl. It is valued as a gem and used as an ornament.
Limestone
Mining; General mining
A rock that is made mainly of calcite, especially from seashells. Lime stones can have many colours but are usually white.
Feldspar
Mining; General mining
A mineral that makes up more than 60 percent of the Earth's crust. The pink and white flecks in granite consist of feldspar.
Corundum
Mining; General mining
A very hard mineral made mainly of aluminium and oxygen. Rubies and sapphires are types of corundum.
Geode
Mining; General mining
A hollow, rounded rock that is lined on the inside with crystals is called geode.
Hardness
Mining; General mining
A measure of how easily a mineral can be scratched. Hardness is measured in Mohs scale.
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