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147:. Quartz is one of the most common minerals in the Earth's crust, and most quartz veins do not carry gold, but those that have gold are avidly hunted by prospectors. In the shallow, oxidized zones of quartz reef deposits, the gold occurs in its metallic state, and is easily recovered with simple equipment. Quartz reef mining played an important role in 19th century gold-mining districts such as
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which lifted buckets of rock up to a raised platform called a brace. Wheeled buckets then carried the rock along elevated tracks to waste dumps or processing works. The steel cable that hoisted the bucket passed over the gin wheel.
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278:, Bendigo (The mine still stands today. Mining began in 1938, and was continuous for 16 years. It was a deep reef quartz goldmine. During the working life of the mine, 60,000
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248:, which amalgamates with gold. The gold particles stuck to the mercury, and could be collected from there. In more recent times, gold has been recovered by the
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The gold was brought to the surface as small particles embedded in lumps of quartz. The quartz was then crushed into a fine dust by stamping batteries in a
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No. 297: "...this discovery created the great excitement that started the development of quartz mining into a great industry."
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All the ore was hoisted to the surface for processing. Water had to be removed by pumping. Big
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sunk to mine quartz from the reefs, sometimes deep underground. Horizontal tunnels called
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Headframe with gin wheel. Abandoned
Kilimafeza gold mine, Serengeti NP, Tanzania
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392:"NO. 297 SITE OF ONE OF THE FIRST DISCOVERIES OF QUARTZ GOLD IN CALIFORNIA"
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were dug out from the shaft at different levels to find the gold-bearing
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of quartz was brought to the surface, yielding 1 tonne of gold.
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On the surface above the shaft stands a building known as the
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were installed to hoist lifts and buckets up the shafts.
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After crushing, the quartz was mixed with water to make
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426:www.central-deborah.com/education/Project doc
363:Mining in the Pacific States of North America
313:Labor in South African Gold Mines 1911-1969
236:which then ran down sloping tables, called
421:http://www.egold.net.au/biogs/EG00024b.htm
416:http://www.egold.net.au/biogs/EG00055b.htm
316:. Cambridge University Press. p. 16.
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16:Type of gold mining in veins of quartz
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366:. San Francisco: J. Wiley. pp.
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155:in New Zealand, and the California
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43:improve this article
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394:. ohp.parks.ca.gov
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451:Quartz mines
396:. Retrieved
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139:in "reefs" (
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41:Please help
36:verification
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441:Gold mining
227:water wheel
180:mine shafts
157:mother lode
137:gold mining
435:Categories
398:2008-08-20
377:0665167377
297:References
219:stamp mill
213:Processing
69:newspapers
223:cam shaft
206:gin wheel
202:headframe
266:Bendigo
246:mercury
83:scholar
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280:tonnes
242:copper
184:drifts
176:Mining
163:Mining
145:quartz
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