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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Quartz from
Aztec Mine, Summitville Mine, Summitville, Rio Grande County, Colorado, USA


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Aztec Mine, Summitville Mine, Summitville, Rio Grande County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:305136
Long-form Identifier:1:3:305136:8
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.4km (0.3 miles) ⓘSummitville Mine, Summitville, Rio Grande County, Colorado, USA
0.8km (0.5 miles) ⓘLittle Annie Mine, Summitville Mine, Summitville, Rio Grande County, Colorado, USA
1.7km (1.0 miles) ⓘTunnel No. 2 claim, Rio Grande County, Colorado, USA
3.4km (2.1 miles) ⓘLookout Mountain, Rio Grande County, Colorado, USA
5.0km (3.1 miles) ⓘEurydice Mine (No. 10; MS 7000; Orpheus; MS 7760; Louisa; MS 7760; Patented Claims: Eurydice; MS 7760), Decatur West Mining District (Stunner Mining District), Conejos County, Colorado, USA
5.3km (3.3 miles) ⓘAsiatic Mine (Brooklyn; MS 16857a; Alabama; MS 16857a; Kearsarge; MS 16857a; Merrimac; MS 16857a; Oregon; MS 16857a; Montgomery; MS 16857a; Olimpia; MS 16857a), Decatur West Mining District (Stunner Mining District), Conejos County, Colorado, USA
6.3km (3.9 miles) ⓘApex Tunnel Occurrence (Watrous Claims), Decatur West Mining District (Stunner Mining District), Conejos County, Colorado, USA
6.4km (4.0 miles) ⓘEmma Mine (Patented Claim: Emma; MS 12752), Decatur West Mining District (Stunner Mining District), Conejos County, Colorado, USA
8.9km (5.5 miles) ⓘVera Breccia Pipe Occurrence, Platoro Mining District (Ute Mining District), Conejos County, Colorado, USA
8.9km (5.5 miles) ⓘValley Queen Mine (Platoro Tunnel; Ajax Nos. 1-10; Texas; Snowstorm; Platoro Tunnel Site; Valley King; Valley Queen Group; Patented Claims: Valley Queen; Shasta), Platoro Mining District (Ute Mining District), Conejos County, Colorado, USA
References
Holmes, Richard Walker, Kennedy, Marrianna B. (1983) Mines and Minerals of the Great American Rift (Colorado-New Mexico). Van Nostrand Reinhold Co., New York.
 
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