Origin: Burro mine, Slick Rock, San Miguel Co., Colorado, U.S.A.
Sample size: 5 x 4 x 3 cm with less than 1 mm, white, acicular sprays on
sandstone (top), 2 x 1.5 x1 cm with white radial sprays to 1 mm covering face
(bottom)
Origin: Burro mine, Slick Rock, San Miguel Co., Colorado, United States
Sample size: 4.5 x 3 x 1 cm with light yellow to white, fine acicular crystals
to about 0.5 mm (top), 5 x 5 x 3 cm (2nd row), 7 x 3 x 3 cm (3rd row), 6 x 5 x
2.5 cm (bottom)
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