GEOLOGICAL NATURAL GOLD NUGGET A nugget of placer gold recovered from a California river, showing stream rounding; of slightly reddish colour. 1.75 grams, 13.99 mm (1/2"). Very fine condition. Provenance Ex Douglas Rose collection; from California, USA. Footnotes Placer mining is the mining of alluvial (sand and gravel) deposits for minerals. This may be done by hand-panning, often in river beds, or by open-pit (open-cast) mining or by various surface excavating equipment or tunneling equipment. Placers supplied most of the gold for a large part of the ancient world; in North America, placer mining was famous in the context of several gold rushes, particularly the California Gold Rush.
GEOLOGICAL NATURAL GOLD NUGGET A nugget of placer gold recovered from a California river, showing stream rounding; of slightly reddish colour. 1.75 grams, 13.99 mm (1/2"). Very fine condition. Provenance Ex Douglas Rose collection; from California, USA. Footnotes Placer mining is the mining of alluvial (sand and gravel) deposits for minerals. This may be done by hand-panning, often in river beds, or by open-pit (open-cast) mining or by various surface excavating equipment or tunneling equipment. Placers supplied most of the gold for a large part of the ancient world; in North America, placer mining was famous in the context of several gold rushes, particularly the California Gold Rush.
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
