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San Miguel mine: awesome replacive texture. The hydrothermal fluid flowed left to right in the image, giving to the original volcanic rock a characteristic spindle form. (Author: Cesar M. Salvan)

San Miguel mine: awesome replacive texture. The hydrothermal fluid flowed left to right in the image, giving to the original volcanic rock a characteristic spindle form. (Author: Cesar M. Salvan)

Dimensions: 800 x 600
File size: 103.37 kbytes
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