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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
taramellite
Mining; General mining
正交的礦物，廣管局 4 Fe 4 (B 2 Si 8 O 27 ) O 2 Cl ；形成了一系列與 titantaramellite ；形式紅褐色輻射纖維總量 ；在 Candoglia，Piemont，義大利。
barylite
Mining; General mining
正交的礦物，寶貝 2 Si 2 O 7 ;形式硬 (6 到 7 的莫氏規模)、 無色晶體 ；在 Laangban、 瑞典 ；佛蘭克林，NJ;和縣園區、 CO。
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