Rutile from Great Plains Domain, North America Plate

Ilmenorutile

McGuire pegmatite, Park County, Colorado, USA

Ilmenorutile

McGuire pegmatite, Park County, Colorado, USA

Rutile

Eureka Tunnel, St Peters Dome, Cheyenne Mining District, El Paso County, Colorado, USA

Rutile

McGuire pegmatite, Park County, Colorado, USA

Ilmenorutile

McGuire pegmatite, Park County, Colorado, USA

Rutile

Eureka Tunnel, St Peters Dome, Cheyenne Mining District, El Paso County, Colorado, USA

Rutile

McGuire pegmatite, Park County, Colorado, USA

Ilmenorutile

McGuire pegmatite, Park County, Colorado, USA

Ilmenorutile

McGuire pegmatite, Park County, Colorado, USA

Rutile

Eureka Tunnel, St Peters Dome, Cheyenne Mining District, El Paso County, Colorado, USA

Rutile

McGuire pegmatite, 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 Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 358 Gavasci, A.T. & P.F. Kerr (1968), Uranium emplacement at Garnet Ridge, Econ.Geol.: 63: 859-876
Coconino County Meteor Crater area ⓘ Canyon Diablo meteorite	Buchwald, Vagn F. (1975) Handbook of Iron Meteorites - Their History, Distribution, Composition and Structure. University of California Press.
Yavapai County Black Hills (Black Hill Range) Verde Mining District Jerome ⓘ United Verde Mine	Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 359 Galbraith, F.W. & Brennan (1959), Minerals of AZ: 30. Anderson, C.A. & S.C. Creasey (1958), Geology and ore deposits of the Jerome area, Yavapai Co., AZ, USGS PP 308: 119 Lindgren, W. (1926), USGS Bull. 782: 61-78.
Wickenburg Mountains Black Canyon Mining District Black Canyon City ⓘ Kay Copper Mine (Kay Copper Corp property; Buckeye Patented claim; Marietta Patented claim; Harriet Patented claim; Diorite Patented claim; Patented claims 3512 and 3743)	Lindgren, W. (1926), USGS Bull. 782: 155-156
Bumble Bee Black Canyon ⓘ Howard Copper Mine (Howard Copper Company property; Copper Schist Patented MS 3645 claim)	Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 30. Lindgren, W. (1926), USGS Bull. 782: 154-155
Colorado Boulder County ⓘ Idaho Springs Formation	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Chaffee County La Plata Mining District (Winfield Mining District) ⓘ Middle Mountain complex	[var. Ilmenorutile] Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Monarch Mining District ⓘ Bon Ton Mine	Spry, P. G., McFadden, S., Teale, G. S., Alers, B., Shallow, J. M., & Glenn, J. M. (2021). Nodular sillimanite rocks as field indicators to metamorphosed massive sulfide deposits. Ore Geology Reviews, 104632.
ⓘ Mt White	Collected by Erin Delventhal rumored to be niobium-bearing, but as of yet unconfirmed
Nathrop ⓘ Upper Browns Creek area	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ California Mine	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
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. U.S. Geological Survey Professional Paper 829
Turret Mining District ⓘ Ace High - Jackpot Prospect	Spry, P. G., McFadden, S., Teale, G. S., Alers, B., Shallow, J. M., & Glenn, J. M. (2021). Nodular sillimanite rocks as field indicators to metamorphosed massive sulfide deposits. Ore Geology Reviews, 104632.
ⓘ Azurite No. 1 claim	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite deposit; Patented Placer claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine)	Pearl, 1958. Colorado Gem Trails & Mineral Guide
Clear Creek County Clear Creek pegmatite Province ⓘ Santa Fe Mountain Beryl Prospect	U.S. Geological Survey Professional Paper 955
Dailey Mining District (Jones Pass Mining District) ⓘ Henderson Mine	[var. Ilmenorutile] Freeport-McMoRan
ⓘ Idaho Springs Formation	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Squaw Mountain (2)	USGS: Geological Survey Circular 567 USGS: Geological Survey Circular 567
ⓘ Squaw Pass	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Conejos County ⓘ Summit Mining District (Summitville Mining District)	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Custer County ⓘ Beardsley Deposit (Zabel-Beardsley Lease)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Gem Park complex ⓘ Niles Mine	Armbrustmacher, T. J. (1988) Geology and resources of thorium and associated elements in the Wet Mountains area, Fremont and Custer counties, Colorado. USGS Professional Paper: 1049-F
ⓘ Haputa Ranch (Haputa Extension)	Armbrustmacher, T. J. (1988) Geology and resources of thorium and associated elements in the Wet Mountains area, Fremont and Custer counties, Colorado. USGS Professional Paper: 1049-F
ⓘ Marion Mine	The Canadian Mineralogist Vol. 43, pp. 601-622 (2005)
McKinley Mountain Area ⓘ Atomic Mountain Claim (Atomic Mountain; Starbuck; General Ike; Thorium Mountain Claims; Nightengale; Mystery; Lucky Find)	Armbrustmacher, T. J. (1988) Geology and resources of thorium and associated elements in the Wet Mountains area, Fremont and Custer counties, Colorado. USGS Professional Paper: 1049-F
ⓘ Rosita Mining District	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Knickerbocker Hill	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Unnamed Prospect	The Canadian Mineralogist Vol. 43, pp. 601-622 (2005)
Dolores County Rico Mountains Rico Mining District (Pioneer Mining District) ⓘ Iron Rod Mine	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Eagle County Fulford Mining District ⓘ Triangle Park	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
El Paso County ⓘ Cheyenne Mining District (St. Peters Dome Mining District)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Eureka Shaft	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Hillside Park claims	[var. Ilmenorutile] Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ St Peters Dome	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. Adams, J.W., Botinelly, T., Sharp, W.N., Robinson, K. (1974) Murataite, a new complex oxide from El Paso County, Colorado. American Mineralogist, 59, 172-176.
ⓘ Eureka Tunnel (1-15 pegmatite)	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Unnamed pegmatite	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Stove Mountain Mineral Locality (Cook Stove Mountain Mineral Locality)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ West Cheyenne Canyon	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Mount Rosa	[var. Ilmenorutile] Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Pikes Peak ⓘ Sentinel rock (Specimen rock)	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Specimen Rock	Rocks & Minerals 76:298-325
ⓘ Stove Mountain (Cookstove Mountain)	Hanson, S.L. and Zito, G. (2013) Mineralogy of Miarolitic Pegmatites in the Stove Mountain Area, Colorado. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 14-15.
Fremont County Cotopaxi Mining District Cotopaxi Mine Gulch ⓘ Cotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill)	Spry, P. G., McFadden, S., Teale, G. S., Alers, B., Shallow, J. M., & Glenn, J. M. (2021). Nodular sillimanite rocks as field indicators to metamorphosed massive sulfide deposits. Ore Geology Reviews, 104632. The Canadian Mineralogist Vol. 43, pp. 601-622 (2005)
Gem Park complex ⓘ Red Syenite dikes	Armbrustmacher, T. J. (1988) Geology and resources of thorium and associated elements in the Wet Mountains area, Fremont and Custer counties, Colorado. USGS Professional Paper: 1049-F
ⓘ Vermiculite Mine (MRDS - 10013422)	USGS Prof Paper 649
ⓘ Goldie carbonatite	[var. Ilmenorutile] Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Grape Creek Mining District (Greenhorn Mining District) ⓘ Green Mountain Mine (Copper Boy Mine)	Spry, P. G., McFadden, S., Teale, G. S., Alers, B., Shallow, J. M., & Glenn, J. M. (2021). Nodular sillimanite rocks as field indicators to metamorphosed massive sulfide deposits. Ore Geology Reviews, 104632. The Canadian Mineralogist Vol. 43, pp. 601-622 (2005)
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	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ McClure Gulch carbonatite dike	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
McClure Mountain Complex ⓘ McClure Gulch carbonatite	Armbrustmacher, T. J. (1988) Geology and resources of thorium and associated elements in the Wet Mountains area, Fremont and Custer counties, Colorado. USGS Professional Paper: 1049-F
McKinley Mountain Area ⓘ Tuttle Ranch Occurrence (Willis Tuttle Ranch)	Armbrustmacher, T. J. (1988) Geology and resources of thorium and associated elements in the Wet Mountains area, Fremont and Custer counties, Colorado. USGS Professional Paper: 1049-F
ⓘ Pinon Peak breccia pipe	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Road Gulch	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 Elk Mountain Mining District (Snowmass Mountain Mining District) ⓘ Treasury Mountain granite	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Goose Creek Mining District ⓘ Adair Group	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Little Johnnie Mine (Cathey Nos. 1-5; Unpatented Claims: Little Johnnie Nos. 1-2; Charley Nos. 1-5; Little Johnnie Extension)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Page, Lincoln R., Stocking, Hobart E., Smith, Harriet B. (1956) Contributions to the geology of uranium and thorium by the United States Geological Survey and Atomic Energy Commission for the United Nations International Conference on Peaceful Uses of Atomic Energy, Geneva, Switzerland, 1955. Professional Paper 300. US Geological Survey doi:10.3133/pp300 Page, Lincoln R., Stocking, Hobart E., Smith, Harriet B. (1956) Contributions to the geology of uranium and thorium by the United States Geological Survey and Atomic Energy Commission for the United Nations International Conference on Peaceful Uses of Atomic Energy, Geneva, Switzerland, 1955. Professional Paper 300. US Geological Survey doi:10.3133/pp300 Page, Lincoln R., Stocking, Hobart E., Smith, Harriet B. (1956) Contributions to the geology of uranium and thorium by the United States Geological Survey and Atomic Energy Commission for the United Nations International Conference on Peaceful Uses of Atomic Energy, Geneva, Switzerland, 1955. Professional Paper 300. US Geological Survey doi:10.3133/pp300
ⓘ Mrs. Roberts Deeded Land Occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10014424)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10014441)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10014442)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10014443)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10014444)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10087944)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10087945)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10087946)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10087947)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10087948)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10014456)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10087958)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10087959)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10087960)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Quartz Creek Pegmatite Mining District ⓘ Bucky pegmatite (New Anniversary; Willow Creek)	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. Armbrustmacher, T.J. (1981) The complex of alkaline rocks at Iron Hill, Powederhorn district, Gunnison County, Colorado. in 32nd Field Conference New Mexico Geological Society: 293-296.
ⓘ Unnamed Thorium Prospect (MRDS - 10014568)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10014569)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10014570)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10014571)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10087969)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospect (MRDS - 10087970)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10014572)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10014573)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10014574)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10087972)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10087973)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10087974)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10094699)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Thorium Prospects (MRDS - 10094700)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed Throium Prospect (MRDS - 10014567)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Hinsdale County Galena Mining District (Henson Creek Mining District) ⓘ Pride of America Mine	Sanford, R.F., Kramer, A.M., O'Brien, Hugh (1986) Geology, mineralogy and paragenesis of the Pride of America Mine, Lake City, Hinsdale County, Colorado. Open-File Report Vol. 1986 (86-629) US Geological Survey doi:10.3133/ofr86629
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.
Clear Creek pegmatite Province ⓘ Drew Hill Prospect (Drew Hill Pegmatites Nos. 1 and 2)	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Unnamed Rutile Occurrence (MRDS - 10090176)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Evergreen Mining District (Malachite Mining District) ⓘ Evergreen area	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Guy Hill pegmatite area	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.
ⓘ Squaw Pass quadrangle	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
La Plata County La Plata Mining District (California Mining District) La Plata ⓘ Copper Hill Mine (Gold Eagle; Delaware Claims)	Summerlin, E. (2014). PGE mineralization at the Allard stock: Implications for the porphyry to epithermal transition, La Plata Mountains, Colorado (Auburn University MS thesis).
Lake County ⓘ Climax Mining District	Gerald K. Czamanske, Eric R. Force and William J. Moore (1981) Some geologic and potential resource aspects of rutile in porphyry copper deposits. Economic Geology and the Bulletin of the Society of Economic Geologists, 76:2240-2246
Climax ⓘ Climax Mine	[var. Ilmenorutile] Freeport-McMoRan
Moffat County ⓘ Fourmile Mining District (Timberlake Creek Mining District)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Joker Pit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Great Divide Area ⓘ Housel Gulch Placer	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Timberlake ⓘ Tipton Tongue placers	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Ouray County Gray Copper Gulch ⓘ Silver Mountain Mine	Robert Stoufer collection
Ouray Mining District Gold Hill ⓘ American Nettie Mine	U.S. Geological Survey Professional Paper 1753
ⓘ Wanakah Mine	U.S. Geological Survey Professional Paper 1753
Upper Uncompahgre River ⓘ Silver Link Mine	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. Tom Rosemeyer (1993) Through the 'Scope: Brookite, Anatase & Rutile from the Silver Link Mine Ouray County, Colorado, Rocks & Minerals, 68:5, pp. 327-330, Published online July 8, 2010: https://www.tandfonline.com/doi/abs/10.1080/00357529.1993.9926563
Park County Alma Mining District Mount Bross ⓘ Sweet Home Mine	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Guffey Mining District ⓘ Betty Mine (Lone Chimney Mine; Betty Lowe)	Spry, P. G., McFadden, S., Teale, G. S., Alers, B., Shallow, J. M., & Glenn, J. M. (2021). Nodular sillimanite rocks as field indicators to metamorphosed massive sulfide deposits. Ore Geology Reviews, 104632.
Lake George (Badger Flats) Area ⓘ Unnamed pegmatite (1)	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Unnamed pegmatite (2)	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ McGuire pegmatite (Lone Lode; Lonesome pegmatite)	[var. Ilmenorutile] King, Van (n.d.) Personal communcation.
Tarryall Springs Mining District (Puma City) ⓘ Redskin Stock	[var. Ilmenorutile] Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Rio Grande County Summitville Mining District (Summit Mining District) South Mountain ⓘ Aztec Mine (Summit Lode Mine; Fairview Mine; Aztec No. 1; Aztec No. 2; Claim: Aztec; MS 621a)	Holmes, Richard Walker, Kennedy, Marrianna B. (1983) Mines and Minerals of the Great American Rift (Colorado-New Mexico). Van Nostrand Reinhold Co., New York.
Saguache County Bonanza Mining District (Kerber Creek Mining District; Blake Mining District) ⓘ Bonanza Mine (Cornucopia Claims; Bonanza No. 1)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Cocomongo Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Porphyry Peak Alunite Deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Unnamed pegmatites	[var. Ilmenorutile] Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
San Juan County ⓘ Polar Star Mine	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
Teller County ⓘ Cripple Creek Mining District	Carnein, Carl R., Bartos, Paul J. (2005) Famous mineral localities: The Cripple Creek Mining District, Colorado, in March - April 2005. The Mineralogical Record, 36 (2) 143-185
ⓘ Ajax Mine	Econ Geol (1985) 80:1669-1688
ⓘ Globe Hill	Econ Geol (1985) 80:1669-1688
ⓘ Crystal Peak	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Smoky Hawk claim	Joseph Dorris (2016) Amazonite and Smoky Quartz Pegmatites of the Smoky Hawk Trend, Teller County, Colorado. in Second Eugene E. Foord Pegmatite Symposium July 15-19, 2016 Colorado School of Mines campus, Golden, Colorado Joseph Dorris (2015) Amazomite and Smoky Quartz Mining on the Smoky Hawk Claim, Teller County, Colorado. 36th Annual New Mexico Mineral Symposium pp. 11-12.
Iowa Emmet County ⓘ Estherville meteorite	Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025 Powell, B. N. (1971). Petrology and chemistry of mesosiderites—II. Silicate textures and compositions and metal-silicate relationships. Geochimica et Cosmochimica Acta 35(1): 5-34. (Jan 1971)
Kansas Logan County ⓘ Oakley (stone) meteorite	Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025
Nebraska Johnson County Elk Creek ⓘ Elk Creek Carbonatite	Verplanck, P. L., Farmer, G. L., Kettler, R. M., Lowers, H. A., Johnson, C. A., Koenig, A. E., & Blessington, M. J. (2022). Petrogenesis and Rare Earth Element Mineralization of the Elk Creek Carbonatite, Nebraska, USA. Ore Geology Reviews, 104953. Verplanck, P. l., Farmer, G. l., Kettler, R. M., Lowers, H. A., Koenig, A. E. and Blessington, M. J. (2014), Rare Earth Element Enrichments in the Elk Creek Carbonatite. Acta Geologica Sinica, 88: 466–467.
New Mexico Colfax County ⓘ Laughlin Peak	USGS Open File report 2010-5220
McKinley County Church Rock - Crownpoint subdistrict ⓘ Defiance	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Standing Rock	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Gallup Mining District	Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.
ⓘ Mariano Lake deposit	NMBMMR Memoir 38 Geology and Technology of the Grants Uranium Region 1979
ⓘ Mount Taylor deposit	NMBMMR Memoir 38 Geology and Technology of the Grants Uranium Region 1979
Rio Arriba County Petaca Mining District La Madera Mtn. ⓘ Schist	Bingler, Edward C. (1968) Geology and mineral resources of Rio Arriba County, New Mexico. Bulletin 91. New Mexico Bureau of Geology and Mineral Resources doi:10.58799/b-91
Las Tablas Mesa de la Jarita ⓘ Big Rock deposit	Schreyer, W., Chinner, G. A. (1966) Staurolite-quartzite bands in kyanite quartzite at Big Rock, Rio Arriba County, New Mexico. Contributions to Mineralogy and Petrology, 12 (3) 223-244 doi:10.1007/bf00518081
ⓘ Stinking Lake area	Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. Bingler, Edward C. (1968) Geology and mineral resources of Rio Arriba County, New Mexico. Bulletin 91. New Mexico Bureau of Geology and Mineral Resources doi:10.58799/b-91
San Juan County ⓘ San Juan Basin	Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.
ⓘ Sanostee Deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Toadlena Deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Taos County ⓘ Costilla area	Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.
Picuris District ⓘ Copper Hill deposits	Econ Geol. (1995) 90:1994-2005
ⓘ Harding Mine	Jahns, Richard H., Ewing, Rodney C. (1977) The Harding Mine, Taos County, New Mexico. The Mineralogical Record, 8 (2) 115-126
Questa ⓘ Questa Molybdenum Mine (Questa Mine; Moly Mine; R and S Mine)	Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.
Utah San Juan County Blanding ⓘ Cottonwood Wash Area	Bull. Minéral. , 1987, 110, pp. 145-156.
Colorado River Placers ⓘ Gold Coin Occurrence (Olympia Bar)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Moses Rock	Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey
Wisconsin Juneau County ⓘ Necedah Bluff quarry	Cordua, William S. (1998) Wisconsin Mineral Locality Index. Rocks & Minerals, 73 (6) 378-399 doi:10.1080/00357529809603078
Sauk County North Freedom Village ⓘ Unnamed drill hole	55TH INSTITUTE ON LAKE SUPERIOR GEOLOGY (2009) PROCEEDINGS VOLUME 55 p. 57-58
Wyoming Albany County New Rambler Mining District ⓘ New Rambler mine (Rambler Mine; Holmes Mine; Electrolytic Mine; Great Rambler Mine)	Loucks, R. R. (1976). Platinum-gold-copper mineralization, central Medicine Bow Mountains, Wyoming (Masters thesis, Colorado State University).

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