20 Terms
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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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Mineral mining
Yttergranat
Mining; General mining
A calcium-iron garnet containing a small amount of yttria. A variety of andradite.
Oldham-Wheat lamp
Mining; General mining
A cap lamp designed for full self-service. This lamp, weighing 6-5/8 lb (3.0 kg), has a 4- V lead-acid battery in a hard rubber case with covers of stainless steel or nickel-plated hard brass. The ...
Priguinite
Mining; General mining
A canary-yellow mineral, (UO 2 )(Mo 2 6+ O 7 ).3H 2 O ; luster, vitreous; uneven fracture; does not fluoresce.
Iriginite
Mining; General mining
A canary-yellow mineral, (UO 2 )(Mo 2 6+ O 7 ).3H 2 O ; luster, vitreous; uneven fracture; does not fluoresce.
Waterproof electric blasting cap
Mining; General mining
A cap specially insulated to ensure reliability of firing when used in wet work.
Plush copper ore
Mining; General mining
A capillary variety of cuprite in fine, slender interlacing fibrous crystals.
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