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This is ferberite with arsenopyrite and siderite. The black, shiny crystals are ferberite, an ore of tungsten. The silvery crystals are arsenopyrite, an ore of arsenic. Siderite crystals form the frosting. This sample is about 15 cm across and is from Panasqueira, Portugal.
这是含砷黄铁矿和菱铁矿的ferberite。黑色、有光泽的晶体是ferberite,是一种钨矿石。银色的晶体是砷黄铁矿,是一种砷矿石。菱铁矿晶体形成表面的霜状物。这块样品宽约15厘米,来自葡萄牙的Panasqueira。 |
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