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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Calcite from
Conrad's Crossing prospect, St. Joe Mining District, Shoshone County, Idaho, USA


Locality type:Prospect
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Conrad's Crossing prospect, St. Joe Mining District, Shoshone County, Idaho, USA
Data Identifiers
Mindat Occurrence Record ID:218245
Long-form Identifier:1:3:218245:2
GUID (UUID V4):0
Nearest other occurrences of Calcite
6.3km (3.9 miles) ⓘBluff Creek Copper claim, St. Joe Mining District, Shoshone County, Idaho, USA
6.8km (4.2 miles) ⓘSt. Joe Quartz prospect, St. Joe Mining District, Shoshone County, Idaho, USA
11.3km (7.0 miles) ⓘWard prospect, St. Joe Mining District, Shoshone County, Idaho, USA
16.6km (10.3 miles) ⓘGranite Peak prospects, St. Joe Mining District, Shoshone County, Idaho, USA
21.8km (13.5 miles) ⓘBlue Bird claim, St. Joe Mining District, Shoshone County, Idaho, USA
21.8km (13.5 miles) ⓘBlue Bird prospect (Blue Bird claim), St. Joe Mining District, Shoshone County, Idaho, USA
23.4km (14.5 miles) ⓘWampum prospect, St. Joe Mining District, Shoshone County, Idaho, USA
23.6km (14.7 miles) ⓘMonitor Mine, St. Regis Mining District, Shoshone County, Idaho, USA
25.2km (15.7 miles) ⓘManhattan prospect, St. Regis Mining District, Shoshone County, Idaho, USA
27.2km (16.9 miles) ⓘBig Elk Mine, St. Joe Mining District, Shoshone County, Idaho, USA
References
Umpleby, Joseph B.; Jones, E. L. Jr. (1923) Geology and ore deposits of Shoshone County, Idaho. Bulletin 732. US Geological Survey doi:10.3133/b732
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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