| mtl CHRYSOCOLLA and PYROLUSITE on QUARTZ, Black Pine Mine, Flint Creek Valley, John Long Mountains, Philipsburg, Granite County, Montana, 2.5 x 1.5 x 1.5 cm in length, Thumbnail | |
 | This was from an old accumulation in Montana of Black Pine Mine specimens. Terminated Quartz crystals, some tabular, coated with brown Pyrolusite and blue green Chrysocolla. |
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