| 单词 | nontronite |
| 释义 | nontronite [`nän·trǝ´nīt] MINERALOGY Na(Al,Fe,Si)O10(OH)2 An iron-rich clay mineral of the montmorillonite group that represents the end member in which the replacement of aluminum by ferric ion is essentially complete. Also known as chloropal; gramenite; morencite; pinguite. |
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