Pyrite and Fluorite Yaogangxian mine - Yaogangxian W-Sn ore ...
Description:
Pyrite and Fluorite Yaogangxian mine - Yaogangxian W-Sn ore field - Yizhang Co. - Chenzhou pref. - Hunan prov. - China 70mm x 32 mm x 26 mm
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