| 单词 | pyrophyllite |
| 释义 | pyrophyllite [´pī·rō`fi´līt] MINERALOGY AlSi2O5(OH) A white, greenish, gray, or brown phyllosilicate mineral that resembles talc and occurs in a foliated form or in compact masses in quartz veins, granites, and metamorphic rocks. Also known as pencil stone. |
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