Mineralpedia Details for Gormanite
Named to honor Donald Herbert Gorman, a Professor of Mineralogy in the department of Geology at the University of Toronto in Canada. Gormaite is a rare mineral that occurs as fracture filling in phosphate-ironstone and in fractures in tonalite. Localities include in Canada, the United States, Namibia, and a few others.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/gormanite.pdf
Gormanite from Big Fish River, Dawson dist., Yukon Territory, Canada
Dark green splinter-like crystals to 0.75mm or up to 2mm as singles and as thick mattes.
Deep green flat-lying crysatl spray to 1.5cm.
Gormanite from Bisbee, Cochise Co., Arizona, United States
Blue compact fibrous crystal bunches in matrix. Got to be rare for Bisbee. Must also be from the same material as described in Anthony et al as this is a partial drill core.