Pyroaurite

Hexagonal pyroaurite crystals (light yellow), calcite (white, tan), hematite (maroon) and franklinite (black) from Sterling Hill Mine, Ogdensburg, NJ. Field of view 3/4" x 5/8". From the collection of, and photo by Robert A. Boymistruk.

Hexagonal pyroaurite crystals, calcite, hematite and franklinite from Sterling Hill Mine, Ogdensburg, NJ

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