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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Quartz from
Laytonville Quarry, Laytonville, Coastal Range, California, USA


Locality type:Quarry
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Deerite2
Chalcopyrite1
Zussmanite1
Pyrite1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Laytonville Quarry, Laytonville, Coastal Range, California, USA
Data Identifiers
Mindat Occurrence Record ID:87998
Long-form Identifier:1:3:87998:7
GUID (UUID V4):0
Nearest other occurrences of Quartz
25.5km (15.9 miles) ⓘHearst, Coastal Range, California, USA
26.8km (16.7 miles) ⓘCovelo, Round Valley, Coastal Range, California, USA
27.9km (17.3 miles) ⓘDeep Hole Mine (Eden Valley Mine), Eden Valley, Hearst, Coastal Range, California, USA
39.8km (24.7 miles) ⓘWild Devil Mine (Waldteufel; Waldteufel Mine), Potter Valley area, Coastal Range, California, USA
43.2km (26.9 miles) ⓘThomas Mine (Thomas deposit; Thomas Round Mountain; North Thomas Mine; Round Mountain), Redwood Valley, Mendocino County, California, USA
44.4km (27.6 miles) ⓘIsland Mountain Mine (Dahrman group; Island Mountain Consolidated Mine; Annex; Leach; Merritt Gore; Shotgun), Moose Peak, Island Mountain, Trinity County, California, USA
58.0km (36.1 miles) ⓘBlue Jay Mine (Blue Jay claim; Blue Bird Mine; McKnight; McKnight), Three Forks, Trinity County, California, USA
62.6km (38.9 miles) ⓘLucky Sunday and Billy Sunday claims (Lucky Sunday claim; Billy Sunday claim), Three Forks, Trinity County, California, USA
67.0km (41.6 miles) ⓘDouble-A prospect (Double A prospect), Van Horn Peak, Trinity County, California, USA
68.5km (42.6 miles) ⓘPoint Delgada, Shelter Cove, Humboldt County, California, USA
References
Anonymous (1964), Three new minerals from California (deerite, howieite, and zussmanite): California Division of Mines and Geology, Mineral Information Service: 17: 138
Muir Wood, Robert (1979) The iron-rich blueschist facies minerals: 2. Howieite. Mineralogical Magazine, 43 (327) 363-370 doi:10.1180/minmag.1979.043.327.08
Muir Wood, Robert (1982) The Laytonville Quarry (Mendocino County California) exotic block: iron-rich blueschist-facies subduction-zone metamorphism. Mineralogical Magazine, 45 (337) 87-99 doi:10.1180/minmag.1982.045.337.10
USGS MRDS database (2005), loc. file ID #10286314 & 10031493.
 
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