亚亚瓜/二十世纪矿
Oruro, Bolivia
位于玻利维亚高原的奥鲁罗是历史悠久的银–锡矿区(圣何塞与伊托斯矿);伊托斯矿是世界最佳硫锡铅锑矿标本的产地。
A historic Bolivian silver–tin district
The Oruro district, in Bolivia's Eastern Cordillera, has been a major silver and tin producer, worked through complex veins in quartz-latite porphyry. The San José and Itos mines are its best-known workings.
What collectors look for
Oruro is celebrated for franckeite (the Itos mine is a noted source), along with cassiterite, silver sulfosalts, and other tin–silver vein minerals.