Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Muscovite from
Unknown Mica (MRDS - 10108334), Boulder County, Colorado, USA


Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Unknown Mica (MRDS - 10108334), Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:372149
Long-form Identifier:1:3:372149:0
GUID (UUID V4):0
Nearest other occurrences of Muscovite
1.5km (0.9 miles) ⓘBeryl Lode (Lehman mine), Left Hand Creek Mining District, Boulder County, Colorado, USA
1.6km (1.0 miles) ⓘElkhorn Prospect (Tin Horn Occurrence), Left Hand Creek Mining District, Boulder County, Colorado, USA
2.3km (1.4 miles) ⓘNew Girl Prospect, Left Hand Creek Mining District, Boulder County, Colorado, USA
3.8km (2.4 miles) ⓘRusty Gold Mine (Copper Blush occurrence), Jamestown Mining District, Boulder County, Colorado, USA
4.4km (2.7 miles) ⓘHill Gulch, Jamestown Mining District, Boulder County, Colorado, USA
5.1km (3.2 miles) ⓘBlue Jay Mine, Jamestown, Jamestown Mining District, Boulder County, Colorado, USA
5.8km (3.6 miles) ⓘNugget Group, Jamestown Mining District, Boulder County, Colorado, USA
5.9km (3.6 miles) ⓘBueno (Buena Group), Jamestown Mining District, Boulder County, Colorado, USA
5.9km (3.7 miles) ⓘSmuggler Mine, Jamestown Mining District, Boulder County, Colorado, USA
5.9km (3.7 miles) ⓘBurlington Mine, Jamestown, Jamestown Mining District, Boulder County, Colorado, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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