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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Talc from
Cowboy Mine (East Cowboy), Takilma Mining District, Josephine County, Oregon, USA


Locality type:Mine
Classification
Species:Talc
Formula:Mg3Si4O10(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Talc data
Locality Data:Click here to view Cowboy Mine (East Cowboy), Takilma Mining District, Josephine County, Oregon, USA
Data Identifiers
Mindat Occurrence Record ID:297269
Long-form Identifier:1:3:297269:5
GUID (UUID V4):0
Nearest other occurrences of Talc
8.1km (5.0 miles) ⓘFrog Pond Mine (Morning Star Group), Althouse Creek Mining District, Josephine County, Oregon, USA
21.5km (13.4 miles) ⓘLookout Occurrences (Kerby No. 128), Waldo Mining District, Josephine County, Oregon, USA
28.3km (17.6 miles) ⓘMorning Sun Prospect, Babyfoot - Little Chetco, Curry County, Oregon, USA
30.2km (18.8 miles) ⓘChromite Float Occurrence (MRDS - 10043068), Babyfoot - Little Chetco, Curry County, Oregon, USA
31.9km (19.9 miles) ⓘFrazier Property (Perseverance; Lucky Girl; Big Joe; Patience), Chetco, Curry County, Oregon, USA
33.1km (20.6 miles) ⓘUnnamed Talc occurrence [3], Fort Goff, Klamath Mountains, Siskiyou County, California, USA
33.2km (20.6 miles) ⓘBowser Mine, Illinois River Mining District, Curry County, Oregon, USA
33.8km (21.0 miles) ⓘLucky Hunch Claim, Central Illinois River Mining District, Josephine County, Oregon, USA
34.2km (21.3 miles) ⓘMcCaleb No. 1 (Part of McCaleb Group; McCaleb's Sourdough No. 1), Pearsoll Peak, Curry County, Oregon, USA
34.4km (21.4 miles) ⓘWonder Group (Wonder 1-3; Kalmiopsis Wilderness; Sourdough No. 2), Pearsoll Peak, Curry County, Oregon, USA
References
Koski, Randolph A., and Derkey, Robert E., 1981, Massive sulfide deposits in oceanic-crust and island-arc terranes of southwestern Oregon: Oregon Geology, v. 43, no. 9, pages 119-125.
 
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