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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Mica Group from
Calumet Mine, Turret Mining District, Chaffee County, Colorado, USA


Locality type:Mine
Classification
Species:'Mica Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Mica Group data
Locality Data:Click here to view Calumet Mine, Turret Mining District, Chaffee County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:54945
Long-form Identifier:1:3:54945:7
GUID (UUID V4):0
Nearest other occurrences of Mica Group
2.3km (1.5 miles) ⓘBlue Brute and Sevilla Queen claims, Turret Mining District, Chaffee County, Colorado, USA
2.7km (1.7 miles) ⓘRoyal Bo (Riegal), Turret Mining District, Chaffee County, Colorado, USA
10.7km (6.6 miles) ⓘMarvel Occurrence, Cleora Mining District, Chaffee County, Colorado, USA
33.9km (21.0 miles) ⓘBull Gulch Mica Mine, Fremont County, Colorado, USA
35.9km (22.3 miles) ⓘCotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
36.7km (22.8 miles) ⓘUnnamed Uranium - Feldspar Mine (MRDS - 10013132), Saguache County, Colorado, USA
48.0km (29.8 miles) ⓘRoad Gulch, Fremont County, Colorado, USA
52.6km (32.7 miles) ⓘParkdale, Fremont County, Colorado, USA
54.2km (33.7 miles) ⓘLookout Mountain, Gold Brick Mining District, Gunnison County, Colorado, USA
57.0km (35.4 miles) ⓘBoulder Lake, Gold Brick Mining District, Gunnison County, Colorado, USA
References
Dana 6:1089
Rocks & Min.:58:153-155.
Collectively: Behre, et al (1936)
 
and/or  
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