Kód: 17238135
The Lava Cap Mine is located about 6 km east of the city of Grass Valley, Nevada County, California, at an elevation of about 900 m (fig. 1). Gold was hosted in quartz-carbonate veins typical of the Sierran Gold Belt, but the gold ... celý popis
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The Lava Cap Mine is located about 6 km east of the city of Grass Valley, Nevada County, California, at an elevation of about 900 m (fig. 1). Gold was hosted in quartz-carbonate veins typical of the Sierran Gold Belt, but the gold grain size was smaller an
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