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Sillimanite from
Gneiss, Bryan Ranch area, Park County, Colorado, USA


Locality type:Outcrop
Classification
Species:Sillimanite
Formula:Al2(SiO4)O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sillimanite data
Locality Data:Click here to view Gneiss, Bryan Ranch area, Park County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:493733
Long-form Identifier:1:3:493733:3
GUID (UUID V4):0
Nearest other occurrences of Sillimanite
9.0km (5.6 miles) ⓘRound Mountain Group, Tarryall Springs Mining District (Puma City), Park County, Colorado, USA
10.4km (6.5 miles) ⓘBlue Mountain Mine, Tarryall Springs Mining District (Puma City), Park County, Colorado, USA
23.9km (14.9 miles) ⓘFamous Lode Mica Prospect (Famous Lodge Pegmatites; Little Joe From Kokomo Claim Adjoining), Micanite Mining District (Currant Creek Mining District), Colorado, USA
25.5km (15.8 miles) ⓘBetty Mine (Lone Chimney Mine; Betty Lowe), Guffey Mining District, Park County, Colorado, USA
29.9km (18.6 miles) ⓘClimax Mine (Mine No. 8 U.S. Mica Company; Climax Mica Mine), Micanite Mining District (Currant Creek Mining District), Colorado, USA
31.5km (19.6 miles) ⓘRed Mountain, Cripple Creek Mining District, Teller County, Colorado, USA
31.7km (19.7 miles) ⓘWhopper Mine and Prospect, Micanite Mining District (Currant Creek Mining District), Colorado, USA
55.1km (34.2 miles) ⓘCalumet Mine, Turret Mining District, Chaffee County, Colorado, USA
55.6km (34.6 miles) ⓘDevil's Hole Mine, Fremont County, Colorado, USA
57.9km (36.0 miles) ⓘIndependence Mine, Turret Mining District, Chaffee County, Colorado, USA
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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