Iron Hill (Powderhorn, Cebolla Creek) (Record #36) rare-earth element deposit in Colorado, United States

Carbonatite rare earth element deposit in Colorado, United States

Woolley, A.R., 1987, Alkaline rocks and carbonatites of the world; Part 1, North and South America: London, United Kingdom, British Museum of Natural History, 216 p.

Deposit type	Carbonatite
Age of deposit	Cambrian-- 570 Ma
REE minerals	bastnäsite perovskite synchysite parisite apatite pyrochlore monazite
Ore minerals	pyrochlore perovskite ilmenite rutile zircon apatite barium vanadium uranium titanite magnetite fluorapatite fluorite thorite vermiculite
Gangue minerals	phlogopite biotite
Host rock types	carbonatite ijolite nepheline syenite pyroxenite melasyenite fenite

Geologic map unit	-107.05, 38.25
Other databases	Find additional scientific data near this location

Anstett, T.F., 1986, Availability of rare-earth, yttrium, and related thorium oxides - market economy countries: U.S. Bureau of Mines Information Circular 9111, 19 p.
Castor, S.B., 1994, Rare earth minerals, in Carr, D.D., ed., Industrial minerals and rocks, 6th edition: Littleton, Colorardo, Society for Mining, Metallurgy, and Exploratin, Inc., p. 827-839.
Woolley, A.R., 1987, Alkaline rocks and carbonatites of the world; Part 1, North and South America: London, United Kingdom, British Museum of Natural History, 216 p.
Pell, Jennifer, 1996, Chapter 13- Mineral deposits associated with carbonatites and related alkaline igneous rocks, in Mitchell, R.H., ed., Undersaturated alkaline rocks: Mineralogy, petrogenesis, and economic potential: Mineralogical Association of Canada Short Course 24, p. 271-310.
Möller, P., 1989a, Rare earth mineral deposits and their industrial importance, in
Thompson, J.V., 1990, Titanium pigments from Colorado perovskite: Soceity for Mining, Metallurgy, and Exploration, Inc., Preprint 90-126, 16 p.