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
Banfield Mine (Rainbow Lode; South Umpqua Mining Company), Tiller-Drew, Douglas County, Oregon, USA


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Banfield Mine (Rainbow Lode; South Umpqua Mining Company), Tiller-Drew, Douglas County, Oregon, USA
Data Identifiers
Mindat Occurrence Record ID:470502
Long-form Identifier:1:3:470502:4
GUID (UUID V4):0
Nearest other occurrences of Calcite
2.4km (1.5 miles) ⓘRowley Mine (Umpqua Copper Group), Tiller-Drew, Douglas County, Oregon, USA
5.8km (3.6 miles) ⓘDrew Occurrence (Jackson), Tiller-Drew, Douglas County, Oregon, USA
19.7km (12.3 miles) ⓘJames R. Occurrence (Pollanz), Tiller-Drew, Douglas County, Oregon, USA
20.0km (12.4 miles) ⓘMaud S. (Oregon Mercury Corp.), Tiller-Drew, Douglas County, Oregon, USA
20.3km (12.6 miles) ⓘBuena Vista (Umpqua Mine), Tiller-Drew, Douglas County, Oregon, USA
25.4km (15.8 miles) ⓘPoor Boy Occurrence (Monte Carlo Claims; Crispin; Last Chance), Tiller-Drew, Douglas County, Oregon, USA
25.6km (15.9 miles) ⓘZinc Creek Area, Tiller-Drew, Douglas County, Oregon, USA
26.3km (16.3 miles) ⓘShamrock Mine (Chisholm Copper; Shamrock Manganese), Gold Hill Mining District, Jackson County, Oregon, USA
28.4km (17.6 miles) ⓘHighway 62 roadcut, Lost Creek Reservoir, Jackson County, Oregon, USA
29.4km (18.3 miles) ⓘLost Creek Dam Quarry, Jackson County, Oregon, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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