Pyrargyrite, 'Ruby Silver' Crystal cluster, Mexico
A beautiful thumbnail cluster of Pyrargyrite ("Ruby Silver") from the Reyes Mine, Guanajuato, Mexico.
Pyrargyrite, is silver antimony sulfide, whose composition is Ag3SbS3. The name is from the Greek pyr, "fire", and argyros, "silver", a reference to both it's color and silver content.
Measures 1.4 x 1 x 0.6 centimeters.
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