A mineral closely allied to augite, and having as its chief constituents silica, magnesia, and lime. It is a constituent of many rocks, as granite…
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| 释义 | the world > the earth > minerals > types of mineral > silicates > amphibole (double chain) > [noun] > hornblende (12) hornblende1770 A mineral closely allied to augite, and having as its chief constituents silica, magnesia, and lime. It is a constituent of many rocks, as granite… siderite1811 Geology. In Pinkerton's proposed classification: any of various rocks containing iron in the form of hornblende or other minerals. Obsolete. rare. Subcategories:— varieties (10) |
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