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Sphalerite is trimorphous with matraite and wurtzite .
The Yaogangxian mine is a world-class locality for not only fluorite but also for arsenopyrite, bournonite, stannite, wurtzite , and ferberite.
Barite, sphalerite, and calcite are the most abundant vein minerals; pyrite, kaolinite, chalcopyrite, galena, and wurtzite are less common.
Vein minerals are barite, calcite, chalcopyrite, kaolinite, pyrite, sphalerite, and wurtzite .
Fine specimens of wurtzite , stannite, bismuthinite, and franckeite are relatively common at Llallagua.
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