File:Quicksilver Mine Ride (4052192912).jpg

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We knew we were getting close when the signs by the river warned of contaminated fish.

After a brutal uphill grunt, we found miles of wonderful trails, and the entrance to the New Almaden mercury mines – 100 miles of tunnels in total.

The mining began in 1845 when Mexican Cavalry Captain Castillero discovered that the red rock used by the local Ohlone Indians to paint their faces and the walls of the Santa Clara Mission was cinnabar, an ore of mercury and sulfur. They needed mercury to process silver in the Mexican silver mines.

This mercury mine produced more fortune than any Californian gold mine in history… despite the “gold rush” marketing.

To separate gold or silver from crushed ore, they used mercury.
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Source Quicksilver Mine Ride
Author Steve Jurvetson from Los Altos, USA

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This image was originally posted to Flickr by jurvetson at https://flickr.com/photos/44124348109@N01/4052192912. It was reviewed on 13 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

13 December 2020

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current15:34, 13 December 2020Thumbnail for version as of 15:34, 13 December 20202,109 × 2,473 (2.84 MB)Eyes Roger (talk | contribs)Transferred from Flickr via #flickr2commons

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