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
Bluff Prospect, Illinois River Mining District, Josephine County, Oregon, USA


Locality type:Prospect
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 Bluff Prospect, Illinois River Mining District, Josephine County, Oregon, USA
Data Identifiers
Mindat Occurrence Record ID:470698
Long-form Identifier:1:3:470698:4
GUID (UUID V4):0
Nearest other occurrences of Magnetite
10.6km (6.6 miles) ⓘCopper Boy Occurrence (Calumet Copper), Illinois River Mining District, Josephine County, Oregon, USA
10.9km (6.8 miles) ⓘJosephine Creek placers, Josephine Creek Mining District, Josephine County, Oregon, USA
11.0km (6.9 miles) ⓘHigh Ridge Claim, Central Illinois River Mining District, Josephine County, Oregon, USA
12.7km (7.9 miles) ⓘChrome King No. 3 (Part of Chrome King Group), Pearsoll Peak area, Josephine County, Oregon, USA
13.0km (8.1 miles) ⓘMadison Gulch 1 & 2 Occurrence, Waldo Mining District, Josephine County, Oregon, USA
18.3km (11.4 miles) ⓘOnion Mountain Nickel Occurrence (Pack Trail; Cobalt Blue), Pickett Creek Mining District, Josephine County, Oregon, USA
20.6km (12.8 miles) ⓘTincup Group (Chetco Group; Tincup Iron Depost), Curry County, Oregon, USA
21.1km (13.1 miles) ⓘSpector Occurrence, Grants Pass Mining District, Josephine County, Oregon, USA
21.5km (13.3 miles) ⓘEmlly Mine, Upper Chetco, Curry County, Oregon, USA
22.5km (14.0 miles) ⓘMansfield Prospect, Waldo Mining District, Josephine County, Oregon, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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