Grunerite

Grunerite is a mineral of the amphibole group of minerals with formula Fe₇Si₈O₂₂(OH)₂. It is the iron endmember of the grunerite-cummingtonite series. It forms as fibrous, columnar or massive aggregates of crystals. The crystals are monoclinic prismatic. The luster is glassy to pearly with colors ranging from green, brown to dark grey. The Mohs hardness is 5 to 6 and the specific gravity is 3.4 to 3.5.

单词	grunerite
释义	grunerite /'ɡru:nə,rait/ 英汉-汉英词典铁闪石词组 \| 习惯用语您要查找的是不是： screenwriter n. 电影剧本作家；编剧家 underwrite v. 承保；写在……下面；给……保险 underwriter n. 保险业者; 保险公司 grunter n. 猪；作猪哼者 grunerite n. [矿物] 铁闪石英语百科 Grunerite Grunerite is a mineral of the amphibole group of minerals with formula Fe₇Si₈O₂₂(OH)₂. It is the iron endmember of the grunerite-cummingtonite series. It forms as fibrous, columnar or massive aggregates of crystals. The crystals are monoclinic prismatic. The luster is glassy to pearly with colors ranging from green, brown to dark grey. The Mohs hardness is 5 to 6 and the specific gravity is 3.4 to 3.5.
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grunerite /'ɡru:nə,rait/

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Grunerite