Search Mineralpedia – A Mineral Photo Database and Identification Guide

Named in honor of George Letchworth English, who was an American mineral dealer and collector from New York City, New York, USA. Englishite can be found only in the United States in three states: in Little Green Monster mine at the type locality in Clay Canyon, Utah, in Nevada at the Meikle, Carlin, Gold Quarry, and Redhouse mines in Nevada, and here in the Black Hills of South Dakota in the Tip Top mine. Englishite occurs in variscite nodules in the Little Green Monster mine, and in the complex granite pegmatite at the Tip Top mine.

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

Named in reference to the minerals pink color, after the Greek word eosphoros, which directly translates to lucifer, which in Latin refers to the “morning star”, or the dawn. Eosphorite is an uncommon mineral that is found in phosphate-bearing granite pegmatites, typically as a secondary mineral. Localities for Eosphorite include in: the United States which includes here in the Black Hills of South Dakota in the Tip Top and Hugo mines, Germany, Finland, Brazil, and Australia, among others. Associated minerals include rhodochosite, lithiophilite, triplodite, dickinsonite, albite, cookeite, apatite, beryllionite, hydroxylherderite, and tourmaline.

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

Named for the Greek words epiprosthetos, meaning “additionally,” and dido, meaning “to give,” I reference to the additional increase of two of the crystal sides as compared to the third. Epidote is a common mineral found in thousands of localities worldwide with a few notable occurrences that include in France, Norway, Italy, Austria, the United States, Mexico, Namibia, and Pakistan. Epidote occurs in facies of regionally metamorphosed rocks, contaminated felsic igneous rocks, contact zones of igneous and calcareous sedimentary rocks, and as an alteration product of plagioclase via saussuritization.

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