Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Siderite from
Road Gulch, Fremont County, Colorado, USA


Locality type:Gulch
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Road Gulch, Fremont County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:35153
Long-form Identifier:1:3:35153:3
GUID (UUID V4):0
Nearest other occurrences of Siderite
0.4km (0.3 miles) ⓘHomestake No. 2 Claim (Homestake No. 6; Homestake Claims), Fremont County, Colorado, USA
0.4km (0.3 miles) ⓘDreamers Hope Claim, Fremont County, Colorado, USA
14.0km (8.7 miles) ⓘCotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
15.1km (9.4 miles) ⓘTitusville and Westfall Gulch Prospects (Grape Claims No. 2 1-19 1977; Unpatented Claims: Arbor Claims No. 1-9), Westfall Gulch, Fremont County, Colorado, USA
16.6km (10.3 miles) ⓘBear Claims Nos. 1 and 2 1977 (Old Cunac Property; Wagner-Grape Creek Lode), East Pierce Gulch Area, Fremont County, Colorado, USA
19.7km (12.2 miles) ⓘPennie Poker Occurrence (Penny Poker), McKinley Mountain Area, Custer County, Colorado, USA
19.7km (12.3 miles) ⓘSunrise Claims I; II and III, Fremont County, Colorado, USA
19.8km (12.3 miles) ⓘDarby Extension Occurrence (Derby Extension), McKinley Mountain Area, Custer County, Colorado, USA
20.1km (12.5 miles) ⓘStinkhole Claim, Fremont County, Colorado, USA
20.8km (12.9 miles) ⓘBull-Domingo Mine, Silver Cliff Mining District, Custer 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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