Spinel from Great Plains Domain, North America Plate

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Sedalia Mine, Sedalia Mining District, Chaffee County, Colorado, USA

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Betty Mine, Guffey Mining District, Park County, Colorado, USA

Spinel, etc.

Betty Mine, Guffey Mining District, Park County, Colorado, USA

Spinel

Sedalia Mine, Sedalia Mining District, Chaffee County, Colorado, USA

Spinel, etc.

Betty Mine, Guffey Mining District, Park County, Colorado, USA

Spinel, etc.

Betty Mine, Guffey Mining District, Park County, Colorado, USA

Spinel

Sedalia Mine, Sedalia Mining District, Chaffee County, Colorado, USA

Spinel, etc.

Betty Mine, Guffey Mining District, Park County, Colorado, USA

Spinel, etc.

Betty Mine, Guffey Mining District, Park County, Colorado, USA


USA
Arizona Apache County Dinnehotso ⓘ Garnet Ridge	Mandarino, Joseph A. (2001) Abstracts of New Mineral Descriptions. The Mineralogical Record, 32 (3) 209-222
Yavapai County Paulden quadrangle ⓘ Chino Valley	Tyner, G. Nell, Smith, Douglas (1986) Peridotite xenoliths in silica-rich, potassic latite from the transition zone of the Colorado Plateau in north-central Arizona. Contributions to Mineralogy and Petrology, 94 (1) 63-71 doi:10.1007/bf00371227
Colorado Boulder County Caribou Mining District ⓘ Caribou Hill deposits	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Idaho Springs Formation	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Chaffee County Sedalia Mining District ⓘ Sedalia Mine (Sedalia Copper Mine)	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Turret Mining District ⓘ Azurite No. 1 claim	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Clear Creek County ⓘ Idaho Springs Formation	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Custer County ⓘ Amethyst Prospect	The Canadian Mineralogist Vol. 43, pp. 601-622 (2005) Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Cisneros Trail ⓘ Unnamed prospect	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Dewey Prospect	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Marion Mine	The Canadian Mineralogist Vol. 43, pp. 601-622 (2005) Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Rosita Mining District	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Unnamed Prospect	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Fremont County Iron Mountain complex ⓘ Iron Mountain	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
McClure Mountain Complex ⓘ Iron Mountain Mine (Iron Mountain Deposit; Iron Mountain Titaniferous Magnetite Deposit)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Micanite Mining District (Currant Creek Mining District) ⓘ Betty Mine	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Gilpin County ⓘ Idaho Springs Formation	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Gunnison County Dorchester Mining District Taylor Park ⓘ Italian Mountain	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
White Earth Mining District (Powderhorn Mining District) ⓘ Iron Hill deposit	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. Larsen, E.S. (1942) Alkalic rocks of Iron Hill, Gunnison County, Colorado. Shorter contributions to general geology, 1941-42. United States Geological Survey Professional Paper 197-A.
Jackson County ⓘ Northern Park Range	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Pearl Mining District ⓘ Caprock prospect	The Canadian Mineralogist Vol. 43, pp. 601-622 (2005) Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Jefferson County Bergen Park area ⓘ Creswell Mine	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Idaho Springs Formation	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Larimer County State Line Kimberlite Mining District ⓘ Sloan diatremes	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Morgan County ⓘ Weldona meteorite	Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025
Park County Guffey Mining District ⓘ Badger Mountain	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Betty Mine (Lone Chimney Mine; Betty Lowe)	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. 2008 New Mexico Mineral Symposium abstracts American Mineralogist,Vol.38 p141
Micanite Mining District ⓘ Famous Lode Mica Prospect (Famous Lodge Pegmatites; Little Joe From Kokomo Claim Adjoining)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Phillips County ⓘ Haxtun meteorite	Wlotzka, F. (2005) Cr spinel and chromite as petrogenetic indictors in ordinary chondrites: Equilibrium temperatures of petrologic type 3.7 to 6. Meteoritics & Planetary Science 40 (11): 1673-1702. (Nov 2005).
Routt County Clark ⓘ Greenville Mine (Greenville Shaft prospect)	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Northern Park Range ⓘ Mount Zirkel area	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
San Miguel County Mount Wilson Mining District ⓘ Lakeside Mine	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Sedgwick County ⓘ Julesburg meteorite	Graham, A.L. (1993) The Julesburg (L3) Meteorite: Meteoritics 28(1):122-125. (March 1993).
Iowa Iowa County ⓘ Homestead meteorite	Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025
Kansas Decatur County ⓘ Leoville meteorite (Leoville CV3 chondrite)	Grady, M. M., Pratesi, G., Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press. Patzer, A., Hezel, D. C., Bendel, V. & Pack, A. (2012) Chondritic ingredients: I. Usual suspects and some oddballs in the Leoville CV3 meteorite. Meteoritics & Planetary Science 47 (1): 142-157. (Jan 2012) (n.d.)
Greeley County ⓘ Horace meteorite	Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025
Norton County ⓘ Norton County meteorite	Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025
New Mexico Colfax County ⓘ Laughlin Peak	NMGS 38th Field Conference
McKinley County ⓘ Fort Defiance area	Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.
Rio Arriba County ⓘ Osier	Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.
Utah Emery County ⓘ Robbers Roost lamproite	Wannamaker, P. E., Hulen, J. B., & Heizler, M. T. (2000). Early Miocene lamproite from the Colorado Plateau tectonic province, southeastern Utah, USA. Journal of Volcanology and Geothermal Research, 96(3-4), 175-190.
San Juan County ⓘ Moses Rock	Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey
Wyoming Albany County ⓘ Shanton iron mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey. (2005) Mineral Resources Data System (MRDS), US Geological Survey.

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