| 单词 | santorinite |
| 释义 | santorinite [san`tȯr·ǝ´nīt] PETROLOGY 1. A light-colored extrusive rock containing approximately 60-65% silica and calcic plagioclase (labradorite to anorthite) as the only feldspar. 2. A hypersthene andesite containing plagioclase crystals that have labradorite cores and sodic rims and a groundmass with microlites of sodic oligoclase. |
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