Any of a group of amphiboles containing sodium, often with some magnesium, found as dark blue or black prismatic crystals, chiefly in alkaline…
| 单词 | θ6905 |
| 释义 | the world > the earth > minerals > types of mineral > silicates > amphibole (double chain) > [noun] > riebeckite (3) riebeckite1888 Any of a group of amphiboles containing sodium, often with some magnesium, found as dark blue or black prismatic crystals, chiefly in alkaline… rhodusite1894 An amphibole mineral occurring as elongated or asbestos-like dark blue fibres, and now identified with magnesioriebeckite. magnesioriebeckite1957 An amphibole mineral occurring as elongated or asbestos-like dark blue fibres. Cf. rhodusite, n. |
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