Pyrargyrite Finely Formed Crystals, Excellent Metallic Luster. Pyrargyrite is one of the minerals often called "Ruby Silver" because when they are first dug they are a strong red metallic crystal. This one is from an estate collection and is remarkably lustrous for its age.
Dimensions (millimeters); 15 x 12 x 10 (small crystal)
Dimensions (inches); .6 x .5 x .4 (petite thumbnail mineral)
Origin: Reyes Mine, Guanajuato, Mexico
Chemistry: Silver Mineral, Ag3SbS3
Thumbnail specimen, housed in small acrylic museum display box
Pyrargyrite is a silver bearing mineral for collectors. Its color is a dark red and is most commonly so dark that it appears black.
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