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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Magnetite from
Esterly Mine (Llano de Oro Mine; Cameron Placer Mine; Logan Placer Mine; Simmons Placer Mine), O'Brien, Takilma Mining District, Josephine County, Oregon, USA


Locality type:Mine
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Esterly Mine (Llano de Oro Mine; Cameron Placer Mine; Logan Placer Mine; Simmons Placer Mine), O'Brien, Takilma Mining District, Josephine County, Oregon, USA
Data Identifiers
Mindat Occurrence Record ID:297779
Long-form Identifier:1:3:297779:9
GUID (UUID V4):0
Nearest other occurrences of Magnetite
15.5km (9.7 miles) ⓘCobalt Prospect (MRDS - 10043259), Babyfoot - Little Chetco, Curry County, Oregon, USA
15.9km (9.9 miles) ⓘMadison Gulch 1 & 2 Occurrence, Waldo Mining District, Josephine County, Oregon, USA
16.9km (10.5 miles) ⓘJune Group, Waldo Mining District, Josephine County, Oregon, USA
17.2km (10.7 miles) ⓘJosephine Creek placers, Josephine Creek Mining District, Josephine County, Oregon, USA
17.3km (10.8 miles) ⓘManganese Prospect (MRDS - 10036320), Babyfoot - Little Chetco, Curry County, Oregon, USA
17.4km (10.8 miles) ⓘMansfield Prospect, Waldo Mining District, Josephine County, Oregon, USA
17.5km (10.9 miles) ⓘIron Group, Waldo Mining District, Josephine County, Oregon, USA
18.9km (11.7 miles) ⓘEmlly Mine, Upper Chetco, Curry County, Oregon, USA
21.1km (13.1 miles) ⓘYoungs Peak occurrence, El Capitan, Klamath Mountains, Siskiyou County, California, USA
21.7km (13.5 miles) ⓘDevil's Punch Bowl, Polar Bear Mountain, Klamath Mountains, Siskiyou County, California, USA
References
(1952) Oregon Metal Mines Handbook - Southwestern Oregon - Josephine County. Bulletin Vol. 2-1 (14-C) (2nd ed.) Oregon Department of Geology and Mineral Industriespp.194-196
 
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