方铅矿[Galena] - 达人(其实～我是卧底，来自外星)

2005/10/03 | 方铅矿[Galena]
类别(℃〖化学〗) | 评论(0) | 阅读(24) | 发表于 10:06: Galena is the mineral name for lead sulfide (PbS). It is the most important ore of lead, but often it contains amounts of silver, and in fact is mined for the silver content, in which case it is known as argentiferous galena.; 0

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