Mike Mine, San Juan County, Colorado, USA
Berryite - dark gray bladed crystals embedded within a quartz matrix.
© Christopher O'Neill
Berryite - bladed crystal embedded in quartz.
Berryite - bladed crystals to 2 mm within quartz matrix.
Tiny silver-grey metallic masses on one end of matrix with pyrite. Purchased in 1985.
© Andrew Hodgson