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Gordonite

Named for Samuel George Gordon, an American mineralogist at the Academy of Natural Sciences in Pennsylvania, USA. Godonite can be found in variscite-rich phosphate nodules in limestone and as a hydrothermal mineral in granite pegmatites. Localities for Gordonite include in the United States including here in the Black Hills of South Dakota at the Tip Top mine, Canada, Brazil, Australia, and Russia, among just a couple others.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/gordonite.pdf

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

Gotzenite

Named after notable German traveler Count Adolph von Gotzen who climbed Mt. Shaheru in the Democratic Republic of the Congo in 1894, which is where the type locality for the mineral is located. Gotzenite is a rare mineral that occurs in additional localities in Russia, Norway, Ukraine, Germany, and Canada. If is found at its type locality in nephilinite in the crater wall of an extinct volcano, and at its Canadian locality at Mont Saint-Hilaire in hornfels and marble xenoliths.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/gotzenite.pdf

Goudeyite

Hatfield Goudey, American economic geologist and mineral collector and dealer, is the namesake of Goudeyite as a contributor to the knowledge of the type locality of the mineral at Majuba Hill mine in Nevada, USA. Goudeyite is a rare mineral that occurs at its type locality in a hydrothermal copper-tin ore within rhyolite porphories and breccias. Other localities for Goudeyite include in Germany, France, and Namibia.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/goudeyite.pdf

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