Specimen of Wulfenite is very common. However, Wulfenite ON Dioptase is quite uncommon. It is only discovered at Tsumeb, Namibia, with limited quanities.
铅是一种相当受欢迎,但;长透视石上铅就相当稀少,只西非纳米比亚发现过一次,且数量相当有限.透视石又称为"翠铜".
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