Ourayite
Deo Gratias Mine, La Ciénega, Pitiquito Municipality, Sonora, Mexico
4.0 x 3.5 x 1.0 cm. A very rare silver-lead-bismuth sulfide. The bright metallic luster of the abundant disseminated ourayite, as anhedral crystals to 2mm, contrasts well with the dark matrix. J. R. Jelks collection label. Ex. Josef Vajdak specimen. Tom and Melissa Campbell photos.
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