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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Native Copper from
Sherman Mine (Sherman tunnel; Leadville Corporation Mine; Day Mines; Hilltop Mine), Upper Iowa Gulch, Lake County, Colorado, USA


Locality type:Mine
Classification
Species:Native Copper
Formula:Cu
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Native Copper data
Locality Data:Click here to view Sherman Mine (Sherman tunnel; Leadville Corporation Mine; Day Mines; Hilltop Mine), Upper Iowa Gulch, Lake County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:438112
Long-form Identifier:1:3:438112:9
GUID (UUID V4):0
Nearest other occurrences of Native Copper
5.3km (3.3 miles) ⓘIbex Mine, Breece Hill, Leadville, Lake County, Colorado, USA
7.7km (4.8 miles) ⓘAdelaide Mine, Iron Hill, Lake County, Colorado, USA
8.9km (5.5 miles) ⓘMaid Of Erin Mine, Carbonate Hill, Leadville, Lake County, Colorado, USA
14.1km (8.8 miles) ⓘLincoln Gulch, Lincoln Mining District (Lincoln Gulch Mining District; Ruby Mining District), Pitkin County, Colorado, USA
38.8km (24.1 miles) ⓘEagle Mine, Gilman, Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
41.3km (25.6 miles) ⓘArrastre Queen Mine (Rochester Queen), Swandyke Area, Summit County, Colorado, USA
42.9km (26.6 miles) ⓘHandcart Gulch, Kenosha Pass Area, Park County, Colorado, USA
52.0km (32.3 miles) ⓘCongress; Rothschild; Pennsylvania (Minerou Tunnel), Argentine Mining District, Summit County, Colorado, USA
57.0km (35.4 miles) ⓘIron Ore Lode Occurrence, Tincup Mining District (Pieplant Mining District), Gunnison County, Colorado, USA
65.2km (40.5 miles) ⓘWahl, Tincup Mining District (Pieplant Mining District), Gunnison County, Colorado, USA
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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