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Cordierite from
Cotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont Co., Colorado, USA

Locality type:Mine
Classification
Species:Cordierite
Formula:(Mg,Fe)2Al3(AlSi5O18)
Confirmation
Validity:Believed Valid
References
References:"Minerals of Colorado, updated & revised", p. 14, by Eckel, Edwin B., 1997; Am Min 50:1179-1212
Data
Mineral Data:Click here to view Cordierite data
Locality Data:Click here to view Cotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont Co., Colorado, USA
Nearest other occurrences of Cordierite
26.6km (16.6 miles) Green Mountain Mine (Copper Boy Mine), Grape Creek Mining District (Greenhorn Mining District), Fremont Co., Colorado, USA
33.8km (21.0 miles) Eight Mile Park, Eight Mile Park Pegmatite Mining District, Fremont Co., Colorado, USA
34.6km (21.5 miles) Sedalia Mine (Jackpot Adit; Adits Nos. 1-3; Dewey Adit; Sedalia Copper Mine), Sedalia Mining District, Chaffee Co., Colorado, USA
38.3km (23.8 miles) Mill Gulch Mine, Guffey Mining District, Park Co., Colorado, USA
38.7km (24.0 miles) Ace High - Jackpot Prospect, Turret Mining District, Chaffee Co., Colorado, USA
39.0km (24.2 miles) Independence Mine, Turret Mining District, Chaffee Co., Colorado, USA
39.8km (24.7 miles) Climax Mine (Mine No. 8 U.S. Mica Company; Climax Mica Mine), Micanite Mining District (Currant Creek Mining District), Fremont Co., Colorado, USA
41.0km (25.5 miles) Copper King Mine (Copper Queen Mine), Guffey Mining District, Park Co., Colorado, USA
42.4km (26.3 miles) Betty Mine (Lone Chimney Mine; Betty Lowe), Guffey Mining District, Park Co., Colorado, USA
44.8km (27.8 miles) Famous Lode Mica Prospect (Famous Lodge Pegmatites; Little Joe From Kokomo Claim Adjoining), Micanite Mining District, Park Co., Colorado, USA
 
Mineral and/or Locality  
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