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
E D Shaft, Bonanza Mining District (Kerber Creek Mining District; Blake Mining District), Saguache County, Colorado, USA


Locality type:Shaft
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view E D Shaft, Bonanza Mining District (Kerber Creek Mining District; Blake Mining District), Saguache County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:435504
Long-form Identifier:1:3:435504:5
GUID (UUID V4):0
Nearest other occurrences of Siderite
28.0km (17.4 miles) ⓘOrient Iron Mine (Caesar; MS 11400; Valley View; MS 8940; Vivia B.; MS 4988; Runaway; MS 1539; Prospector; MS 1505; Villa Grove), Orient Mining District, Saguache County, Colorado, USA
37.1km (23.1 miles) ⓘRawley Mine, Bonanza Mining District (Kerber Creek Mining District; Blake Mining District), Saguache County, Colorado, USA
49.8km (30.9 miles) ⓘCotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
52.8km (32.8 miles) ⓘBull-Domingo Mine, Silver Cliff Mining District, Custer County, Colorado, USA
55.1km (34.2 miles) ⓘRoad Gulch, Fremont County, Colorado, USA
55.2km (34.3 miles) ⓘHomestake No. 2 Claim (Homestake No. 6; Homestake Claims), Fremont County, Colorado, USA
55.4km (34.4 miles) ⓘDreamers Hope Claim, Fremont County, Colorado, USA
56.5km (35.1 miles) ⓘIron Mountain Mine (Iron Mine; Iron Hill Mine), Rosita Mining District, Custer County, Colorado, USA
57.0km (35.4 miles) ⓘFair View Lode Occurrence, Custer County, Colorado, USA
59.8km (37.2 miles) ⓘPolonia Shaft, Rosita 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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