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Red Jasper and Quartz

Copyright © Bruce Ueno
 
 

Red Jasper and Quartz

Copyright © Bruce Ueno  - This image is copyrighted. Unauthorized reproduction prohibited.

Brick red jasper and quartz, here with a dusting of red and yellow ochre. This so called "quartz-agate" material comprised the principal gold bearing ore of the Alvord, though gold was also extracted from deposits of hematite, and to a lesser extent from limonite and calcite.

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Photo added: 30th Jan 2012