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
Buena Vista (Umpqua Mine), Tiller-Drew, Douglas County, Oregon, USA


Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Buena Vista (Umpqua Mine), Tiller-Drew, Douglas County, Oregon, USA
Data Identifiers
Mindat Occurrence Record ID:470809
Long-form Identifier:1:3:470809:4
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.3km (0.2 miles) ⓘMaud S. (Oregon Mercury Corp.), Tiller-Drew, Douglas County, Oregon, USA
1.0km (0.6 miles) ⓘJames R. Occurrence (Pollanz), Tiller-Drew, Douglas County, Oregon, USA
9.0km (5.6 miles) ⓘPoor Boy Occurrence (Monte Carlo Claims; Crispin; Last Chance), Tiller-Drew, Douglas County, Oregon, USA
11.5km (7.2 miles) ⓘZinc Creek Area, Tiller-Drew, Douglas County, Oregon, USA
15.7km (9.8 miles) ⓘDrew Occurrence (Jackson), Tiller-Drew, Douglas County, Oregon, USA
20.3km (12.6 miles) ⓘBanfield Mine (Rainbow Lode; South Umpqua Mining Company), Tiller-Drew, Douglas County, Oregon, USA
22.4km (13.9 miles) ⓘRowley Mine (Umpqua Copper Group), Tiller-Drew, Douglas County, Oregon, USA
44.6km (27.7 miles) ⓘHighway 62 roadcut, Lost Creek Reservoir, Jackson County, Oregon, USA
44.7km (27.8 miles) ⓘHighway 62 and Lewis Road Junction, Lost Creek Reservoir, Jackson County, Oregon, USA
45.4km (28.2 miles) ⓘLost Creek Dam Quarry, Jackson County, Oregon, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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