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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Pyrite from
Hamilton Mine, Blanca Mining District, Costilla County, Colorado, USA


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Hamilton Mine, Blanca Mining District, Costilla County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:67986
Long-form Identifier:1:3:67986:4
GUID (UUID V4):0
Nearest other occurrences of Pyrite
20.1km (12.5 miles) ⓘStar of the West Mine (Ainsworth; Upper Star of the West Mine), Grayback Mining District (Russell Mining District), Costilla County, Colorado, USA
20.9km (13.0 miles) ⓘHidden Treasure Claim, Grayback Mining District (Russell Mining District), Costilla County, Colorado, USA
21.2km (13.1 miles) ⓘWillow Gulch Placer, Grayback Mining District (Russell Mining District), Costilla County, Colorado, USA
35.8km (22.3 miles) ⓘPlomo Mine (San Luis project; Rito Seco Mine), El Plomo Mining District (Rito Seca Mining District), Costilla County, Colorado, USA
38.8km (24.1 miles) ⓘUnnamed Mines (MRDS - 10012948), Crestone Mining District (Baca Grant Mining District), Saguache County, Colorado, USA
41.3km (25.7 miles) ⓘUnnamed Copper - Gold Prospects (MRDS - 10012940), Crestone Mining District (Baca Grant Mining District), Saguache County, Colorado, USA
44.1km (27.4 miles) ⓘEastern Star Mine, Crestone Mining District (Baca Grant Mining District), Saguache County, Colorado, USA
45.6km (28.3 miles) ⓘIndependence Mine (Independence Mill Site Alamosa; Queen Esther Claims; Independent; Bonanza; Eastern Star; Midnight Star; Baca Grant No. 4), Crestone Mining District (Baca Grant Mining District), Saguache County, Colorado, USA
48.5km (30.2 miles) ⓘUnnamed Silver - Gold - Copper Mine (MRDS - 10012941), Crestone Mining District (Baca Grant Mining District), Saguache County, Colorado, USA
51.2km (31.8 miles) ⓘGarfield Claim, Crestone Mining District (Baca Grant Mining District), Saguache County, Colorado, USA
References
Dana 6:A2:110 & Dana 7:I:161.
 
and/or  
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