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单词
cryptomelane
释义
cryptomelane
cryptomelane
[
¦krip·tō·mə′lān
]
(mineralogy)
KMn
8
O
16
·H
2
O A usually massive mineral, common in manganese ores; contains an oxide of manganese and potassium and crystallizes in the monoclinic system.
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更新时间:2026/5/7 23:05:07