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
Chalk Mountain, Summit County, Colorado, USA


Locality type:Mountain
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Chalk Mountain, Summit County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:346308
Long-form Identifier:1:3:346308:6
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.4km (0.3 miles) ⓘChalk Mountain Occurrence, Alicante, Lake County, Colorado, USA
2.3km (1.4 miles) ⓘFremont Pass, Lake County, Colorado, USA
2.7km (1.7 miles) ⓘClimax Mine, Climax, Climax Mining District, Lake County, Colorado, USA
2.8km (1.8 miles) ⓘRobinson Mine (Robinson No. 2), Kokomo-Tenmile area, Summit County, Colorado, USA
3.1km (1.9 miles) ⓘMcNulty Gulch, Kokomo-Tenmile area, Summit County, Colorado, USA
3.5km (2.2 miles) ⓘCeresco, Alicante, Lake County, Colorado, USA
4.3km (2.7 miles) ⓘJohn Reed Mine, Alicante, Lake County, Colorado, USA
5.3km (3.3 miles) ⓘZephyr, Alicante, Lake County, Colorado, USA
7.7km (4.8 miles) ⓘGolden Crest occurrence, Kokomo-Tenmile area, Summit County, Colorado, USA
8.6km (5.4 miles) ⓘKite Lake, Mount Bross, Alma Mining District, Park County, Colorado, USA
References
Personally Collected by Dr. Scott Campbell.
 
and/or  
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