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brittle mica
Group of micas having brittle laminae. Chief member is chloritoid, a basic silicate of aluminum, iron, and magnesium, Fe2+,Mg,Mn)2Al4Si2O10(OH)4.
- スピーチの一部 noun
- 産業/ドメイン 炭鉱
- カテゴリ 炭鉱全般; Mineral mining
- Government Agency: USBM
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作成者
- ed.young
- 100% positive feedback
(Milwaukee, United States)