LOT 7016 美国 萤石、闪锌矿
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产自:美国 Minerva No.1 mine, Cave-in-Rock Hardin Co., Illinois, USA.
棕黄色萤石晶体,呈透明至半透明状态,萤石晶体的几何棱角非常明显,晶体内部靠棱边处有一圈罕见的紫色线条,生长在棕褐色的闪锌矿晶簇上,晶体完整而且是浮生标本。色泽艳丽的精品萤石标本,倍受世界各地收藏家热爱。萤石化学成分为氟化钙,是非常重要矿产资源,萤石是唯一一种可以提炼大量氟元素矿物,比如用其生产出的氟利昂,用于空调、冰箱。萤石一般呈玻璃光泽,颜色鲜艳多变,质脆。部分萤石在加热、紫外线照射等情况下可以发光,即有荧光或者磷光反应。传说中的夜明珠,可能是萤石材质的。
尺寸:14-10.5-5.5cm
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