mtl DUFTITE on QUARTZ, Black Pine Mine, Flint Creek Valley, John Long Mountains, Philipsburg, Granite County, Montana, 2.5 x 2 x 1.5 cm, Thumbnail | |
This was from an old accumulation in Montana of Black Pine Mine specimens. Here is a terminated Quartz crystal with damage on the termination. The side of the crystal has a druze of pale yellow green Duftite. |