Quartz from Cheyenne Mining District (St. Peters Dome Mining District), El Paso County, Colorado, USA

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USA
Colorado El Paso County ⓘ Cheyenne Mining District (St. Peters Dome Mining District)	[var. Chalcedony] (2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Duffields Deposit	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Eureka Shaft	[var. Chalcedony] Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Hillside Park claims	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Mattie B. Mine (Claims: Mattie B.; MS 20501; Trail; MS 20501; Abe Lincoln; MS 20501)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ St Peters Dome	[var. Smoky Quartz] Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Cryolite Mine (65-2 pegmatite)	Pavel M. Kartashov analytical data, material of Dean Allum
ⓘ Eureka Tunnel (1-15 pegmatite)	Landes, K.K. (1935) Colorado Pegmatites. American Mineralogist, 20(5), 319-333.
ⓘ Unnamed pegmatite	Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
ⓘ Timberline Tunnel (Cather Springs Deposit; Claims: Timberline Nos. 1 and 2; MS 20026)	(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.