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
Bull Gulch Mica Mine, Fremont 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 Bull Gulch Mica Mine, Fremont County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:355183
Long-form Identifier:1:3:355183:7
GUID (UUID V4):0
Nearest other occurrences of Mica Group
8.6km (5.4 miles) ⓘCotopaxi Pegmatite area, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
15.6km (9.7 miles) ⓘRoad Gulch, Fremont County, Colorado, USA
21.8km (13.5 miles) ⓘParkdale, Fremont County, Colorado, USA
32.2km (20.0 miles) ⓘMarvel Occurrence, Cleora Mining District, Chaffee County, Colorado, USA
33.7km (20.9 miles) ⓘRoyal Bo (Riegal), Turret Mining District, Chaffee County, Colorado, USA
33.9km (21.0 miles) ⓘCalumet Mine, Turret Mining District, Chaffee County, Colorado, USA
34.3km (21.3 miles) ⓘBlue Brute and Sevilla Queen claims, Turret Mining District, Chaffee County, Colorado, USA
44.4km (27.6 miles) ⓘKnickerbocker Hill, Rosita Mining District, Custer County, Colorado, USA
47.7km (29.6 miles) ⓘI. Kreiner Mine, Crestone Mining District (Baca Grant Mining District), Saguache County, Colorado, USA
55.5km (34.5 miles) ⓘUnnamed Uranium - Feldspar Mine (MRDS - 10013132), Saguache County, Colorado, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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