Geology. The quantitative mineral composition of a rock sample, as distinct from its chemical composition. Cf. norm, n.1 4.
| 单词 | θ5529 |
| 释义 | the world > the earth > structure of the earth > constituent materials > rock > mineral or chemical composition > [noun] (17) mode1902 Geology. The quantitative mineral composition of a rock sample, as distinct from its chemical composition. Cf. norm, n.1 4. heteromorphism1921 Also corresponding to other senses of heteromorphic, adj. Subcategories:— oversaturation or undersaturation (2) — norm (1) — rock containing specific mineral (10) — condition (1) — gas retentivity (1) |
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