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托帕石
由含氟和羟基的铝的硅酸盐组成的黄玉族宝石。曾经名为黄玉,但因为易与和田玉中黄色品种的传统名称相混淆,故其宝石学名称改为音译的托帕石。
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[岛状硅酸盐矿物]
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黄玉
岛状结构硅酸盐矿物。化学组成为Al2[SiO4](F,OH)2,晶体属正交(斜方)晶系。又称黄晶。
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黄玉{矿},黄晶
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