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Rabbittite

Named for John Charles Rabbitt who was a Chief of the Trace Elements Section at the United States Geological Survey. Rabbittite can be found in Utah in the United States and at Jachymov in the Czech Republic, as well as purportedly in Russia. It is a secondary mineral likely of post-mine origin. It can be found associated with sodium-zippeite, magnesium-zippeite, fourmarieite, gypsum, bieberite, and cobaltoan calcite. Rabbittite is radioactive. It will slowly dissolve in water at fluoresces a pastel yellow color under short-wave ultraviolet light.

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

Raite

Named “in honor of the international group of scientists, captained by Thor Heyerdahl, crewing the papyrus ship Ra.” Raite is a rare mineral found only in the Lovozero massif in the Kola Peninsula in Russia and in the Mont Saint-Hilaire complex in Quebec, Canada. If is found on facture walls that have been filled with nepheline.

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

Rajite

Named after Robert Allen Jenkins (initials RAJ), an American mineralogist and geologist for the Phelps Dodge Corporation, now Freeport-McMoRan Copper & Gold Inc., as the first to discover the species. Rajite is a rare mineral that occurs as a coating on fractures through silicified rhyolite breccia. Found only at its type locality at the Lone Pine mine in New Mexico, USA and also one other reported locality in Japan.

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

Ralstonite

Named for Reverend J. Grier Ralston of Pennsylvania, USA, who was the first to observe the mineral. It occurs in granite pegmatites that are fluorine bearing as well as in antimony deposits of hydrothermal origin within silicified limestone. Quite a few localities including in Greenland, the USA, Bolivia, Australia, Norway, Italy, Ukraine, Kazakhstan, Russia, and others. 

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

Rambergite

Named for Hans Ramberg, a Professor of Mineralogy at the University of Chicago in Illinois, USA, and then at the University of Uppsala in Sweden. Appears as brown to red thick, hexagonal tablets or as hexagonal pyramids. Found in an amphibole skarn at the type locality in the Garpenberg Norra mine in Dalarna, Sweden. It can also be found in a uranium ore deposit where it occurs as a late mineral along with gypsum, ettringite, bazhenovite, and hannebachite in the Lichtenberg Absetzer mine in the Ronnaberg U deposit in Thuringia, Germany. Additional, newer localities can be found in Japan at the Hirogawara mine on Honshu Island, in China in the Luobusha ophiolite in the Shannan prefecture, and at Gotland Deep in the Baltic Sea.

Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)

IMA/CNMNC List of Mineral Names (2009) and Geologiska Foreninges I Stockholm Forhandlingar 118 (1996), A53

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