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
Martinez Mine (Martinez Gold Mine; Martinez claim; Bismarck claim; Gold Reef claim; Hillside Extension claim; Hillside Extension No. 3 claim; Martinez Hillside group; Hillside group), Logtown, El Dorado Mining District, El Dorado County, California, USA


Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Comments:Occurs as sericite schist surrounding ore lenses.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Martinez Mine (Martinez Gold Mine; Martinez claim; Bismarck claim; Gold Reef claim; Hillside Extension claim; Hillside Extension No. 3 claim; Martinez Hillside group; Hillside group), Logtown, El Dorado Mining District, El Dorado County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1012856
Long-form Identifier:1:3:1012856:3
GUID (UUID V4):0
Nearest other occurrences of Muscovite
0.2km (0.1 miles) ⓘMartinez Gold Mine (Martinez Mine; Martinez Hillside group; Bismark claim; Gold reef claim; Hillside Extension claim; Hillside Extension No. 3 claim; Martinez claim), Logtown, El Dorado Mining District, El Dorado County, California, USA
9.0km (5.6 miles) ⓘBBC Mine, El Dorado County, California, USA
10.0km (6.2 miles) ⓘPacific Quartz Mine (Pacific Mine), Placerville (Hangtown), Placerville Mining District, El Dorado County, California, USA
10.4km (6.5 miles) ⓘPlacerville (Hangtown), Placerville Mining District, El Dorado County, California, USA
13.5km (8.4 miles) ⓘMocettini occurrence, Flonellis, Latrobe Mining District, El Dorado County, California, USA
13.6km (8.4 miles) ⓘChrysoprase and Moss Opal deposits, River Pines, Fiddletown Mining District (Oleta Mining District), Amador County, California, USA
14.4km (8.9 miles) ⓘPyramid Mine (Gold Reserve Mine), Rescue area, Deer Valley Mining District, West Belt, El Dorado County, California, USA
21.0km (13.1 miles) ⓘAlhambra Gold Mine (Alhambra Mine; Atlantic Mine), Spanish Flat, Spanish Flat Mining District, East Belt, El Dorado County, California, USA
23.8km (14.8 miles) ⓘOriginal Amador Mine (Eclipse Mine; Little Amador Mine; Original Amador claim; East Amador claim; Amador Wedge claim; Great Eastern claim; Eclipse Extension claim; Last Chance claim), Amador City, Jackson-Plymouth Mining District, Amador County, California, USA
26.4km (16.4 miles) ⓘLincoln Mine (Lincoln claim; Stewart claim; Belmont claim), Lincoln Consolidated Mine, Sutter Creek, Jackson-Plymouth Mining District, Amador County, California, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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