Small ourayite grains in
pyrite
and other sulfides as matrix
Origin: Pitiquito, Sonora, Mexica
Sample size: 4 x 2 x 2 cm, grains to 1 mm
Small ourayite grains in
pyrite
and other sulfides as matrix
Origin: Pitiquito, Sonora, Mexica
Sample size: 3 x 2 x 2 cm, grains to 3 mm
Photo courtesy of: