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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Gneiss from
Mountain Spring prospect (Mtn Spring prospect; Unnamed mine; Unnamed prospect), Mountain Spring Camp, Piute Mts [S], San Bernardino County, California, USA


Locality type:Prospect
Classification
Type:Gneiss
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gneiss data
Locality Data:Click here to view Mountain Spring prospect (Mtn Spring prospect; Unnamed mine; Unnamed prospect), Mountain Spring Camp, Piute Mts [S], San Bernardino County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1027688
Long-form Identifier:1:3:1027688:8
GUID (UUID V4):0
Nearest other occurrences of Gneiss
1.6km (1.0 miles) ⓘUnnamed Au occurrence [263] (Unnamed prospect), Mountain Spring Camp, Piute Mts [S], San Bernardino County, California, USA
1.6km (1.0 miles) ⓘUnnamed Au mine [242] (Unnamed prospect; Gold occurrence), Mountain Spring Camp, Piute Mts [S], San Bernardino County, California, USA
5.0km (3.1 miles) ⓘUnnamed Au prospect [209], Fenner Spring, Piute Mts [S], San Bernardino County, California, USA
5.0km (3.1 miles) ⓘUnnamed Au mine [243] (Unnamed prospect; Gold prospect), Mountain Spring Camp, Piute Mts [S], San Bernardino County, California, USA
13.9km (8.7 miles) ⓘPiute Mountains Mine (Unnamed Gold-Silver occurrence; Unnamed mine), Fenner Spring, Piute Mts [S], San Bernardino County, California, USA
17.2km (10.7 miles) ⓘBarred Spring prospect (Barrel Spring prospect ??; Unnamed prospect), Barrel Spring, Piute Mts [S], San Bernardino County, California, USA
20.1km (12.5 miles) ⓘUnnamed Cu-Au-Pb mine [1] (Unnamed prospect; Gold occurrence; Unnamed mine), Hackberry Spring, Hackberry Mountain, Signal Mining District (Vontrigger Mining District), San Bernardino County, California, USA
21.3km (13.2 miles) ⓘSection 11 Gold prospect (Unnamed prospect), Big Chief Peak, Chemehuevi Valley, San Bernardino County, California, USA
22.6km (14.0 miles) ⓘUnnamed Au-Ag mine [96], Essex, Fenner Valley, San Bernardino County, California, USA
23.6km (14.7 miles) ⓘGold Ace West prospect (Section 7 Mine), Big Chief Peak, Chemehuevi Valley, San Bernardino County, California, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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