2006/10/04 | 钡硬锰矿[Romanechite]
类别(℃〖化学〗) | 评论(1) | 阅读(63) | 发表于 15:58
The manganese oxide (Ba,H2O)2Mn5O10 which forms black spikelets on other crystal spikes. The mineral was previously known as psiolomelane.
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