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Cambria-Oceanic Mining District, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo County, California, USAi
Regional Level Types
Cambria-Oceanic Mining DistrictMining District
Santa Lucia Mts (Santa Lucia Range)Mountain Range
San Luis Obispo CountyCounty
CaliforniaState
USACountry

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PhotosMapsSearch
05909610017272073691907.jpg
The beach

Moonstone Beach, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts, San Luis Obispo County, California, USA
06685310017272298379704.jpg
Black Mountain area

Black Mountain area, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts, San Luis Obispo County, California, USA
04134750017272298387525.jpg
Rhyolite, etc.

Black Mountain area, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts, San Luis Obispo County, California, USA
05909610017272073691907.jpg
The beach

Moonstone Beach, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts, San Luis Obispo County, California, USA
06685310017272298379704.jpg
Black Mountain area

Black Mountain area, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts, San Luis Obispo County, California, USA
04134750017272298387525.jpg
Rhyolite, etc.

Black Mountain area, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts, San Luis Obispo County, California, USA
05909610017272073691907.jpg
The beach

Moonstone Beach, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts, San Luis Obispo County, California, USA
06685310017272298379704.jpg
Black Mountain area

Black Mountain area, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts, San Luis Obispo County, California, USA
Latitude & Longitude:
35° North , 120° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~105km
GRN:
N24W71
Type:
Mining District
Mindat Locality ID:
209348
Long-form identifier:
mindat:1:2:209348:5
GUID (UUID V4):
0


A mining area around the town of Cambria.

Mineralization in Hg ore (cinnabar) which occurs as disseminated grains in silicified serpentine and in silica-carbonate rock.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

17 valid minerals. 1 (TL) - type locality of valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
Description: Termed "sodic plagioclase."
ⓘ Calomel
Formula: [Hg2]2+Cl2
ⓘ Cervantite
Formula: Sb3+Sb5+O4
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Cinnabar
Formula: HgS
Localities: Reported from at least 15 localities in this region.
ⓘ 'Clinoptilolite Subgroup'
Formula: (Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
ⓘ Hematite
Formula: Fe2O3
ⓘ 'K Feldspar'
Description: Or 42-63. Occurs as fibrous intergrowths with albite and quartz in the peripheral portions of geodes.
ⓘ 'Limonite'
ⓘ Magnesite
Formula: MgCO3
Description: Occurs as small veins in serpentine.
ⓘ Mercury
Formula: Hg
ⓘ Metacinnabar
Formula: HgS
ⓘ Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘ 'Moonstone'
Description: There does not appear to be any "moonstone", nor any other variety of feldspar (except as a micro rock-forming constituent of some igneous beach pebbles), on Moonstone Beach, contrary to the beliefs of some local inhabitants, who confuse the milky white chalcedony pebbles with "moonstone", and who do sell genuine moonstone jewelry (imported) in the local tourist shops.
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
Localities:
Black Mountain area, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo County, California, USA
San Simeon Creek deposit, South Fork San Simeon Creek, San Simeon Creek, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo County, California, USA
Moonstone Beach, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo County, California, USA
Cambria Mine (Bank Mine; Red Hill workings; La Trinidad Mine), Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo County, California, USA
Doty Mine, Pine Mountain deposit, Pine Mountain, Cambria, Cambria-Oceanic Mining District, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo County, California, USA
ⓘ Quartz var. Agate
Formula: SiO2
ⓘ Quartz var. Agate-Jasper
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Schuetteite (TL)
Formula: Hg2+3(SO4)O2
Type Locality:
Description: Abundant on dump.
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Stibiconite
Formula: Sb3+Sb5+2O6(OH)
ⓘ Stibnite
Formula: Sb2S3
Description: Reference is not mine specific but probably refers to the Marquart (Cambria) Mine.
ⓘ Tridymite
Formula: SiO2

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘMercury1.AD.05Hg
Group 2 - Sulphides and Sulfosalts
ⓘMetacinnabar2.CB.05aHgS
ⓘCinnabar2.CD.15aHgS
ⓘStibnite2.DB.05Sb2S3
ⓘPyrite2.EB.05aFeS2
Group 3 - Halides
ⓘCalomel3.AA.30[Hg2]2+Cl2
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz
var. Agate		4.DA.05SiO2
ⓘvar. Agate-Jasper4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘOpal4.DA.10SiO2 · nH2O
ⓘTridymite4.DA.10SiO2
ⓘCervantite4.DE.30Sb3+Sb5+O4
ⓘStibiconite4.DH.20Sb3+Sb5+2O6(OH)
Group 5 - Nitrates and Carbonates
ⓘMagnesite5.AB.05MgCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘSchuetteite (TL)7.BB.40Hg2+3(SO4)O2
Group 9 - Silicates
ⓘMontmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Clinoptilolite Subgroup'-(Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
ⓘ'Limonite'-
ⓘ'Moonstone' ?-
ⓘ'K Feldspar'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ Clinoptilolite Subgroup(Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
Hⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Hⓘ OpalSiO2 · nH2O
Hⓘ StibiconiteSb3+Sb25+O6(OH)
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
Cⓘ MagnesiteMgCO3
OOxygen
Oⓘ Quartz var. AgateSiO2
Oⓘ Quartz var. Agate-JasperSiO2
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ CervantiteSb3+Sb5+O4
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ Clinoptilolite Subgroup(Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
Oⓘ HematiteFe2O3
Oⓘ MagnesiteMgCO3
Oⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Oⓘ OpalSiO2 · nH2O
Oⓘ QuartzSiO2
Oⓘ SchuetteiteHg32+(SO4)O2
Oⓘ StibiconiteSb3+Sb25+O6(OH)
Oⓘ TridymiteSiO2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Clinoptilolite Subgroup(Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
Naⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mgⓘ MagnesiteMgCO3
Mgⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Clinoptilolite Subgroup(Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
Alⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
SiSilicon
Siⓘ Quartz var. AgateSiO2
Siⓘ Quartz var. Agate-JasperSiO2
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ Clinoptilolite Subgroup(Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
Siⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Siⓘ OpalSiO2 · nH2O
Siⓘ QuartzSiO2
Siⓘ TridymiteSiO2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sⓘ CinnabarHgS
Sⓘ MetacinnabarHgS
Sⓘ PyriteFeS2
Sⓘ SchuetteiteHg32+(SO4)O2
Sⓘ StibniteSb2S3
ClChlorine
Clⓘ Calomel[Hg2]2+Cl2
KPotassium
Kⓘ Clinoptilolite Subgroup(Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
CaCalcium
Caⓘ Clinoptilolite Subgroup(Na/Ca/K)3-6[Al6-7Si29-30O72] · 20H2O
Caⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ HematiteFe2O3
Feⓘ PyriteFeS2
SbAntimony
Sbⓘ CervantiteSb3+Sb5+O4
Sbⓘ StibiconiteSb3+Sb25+O6(OH)
Sbⓘ StibniteSb2S3
HgMercury
Hgⓘ Calomel[Hg2]2+Cl2
Hgⓘ CinnabarHgS
Hgⓘ MercuryHg
Hgⓘ MetacinnabarHgS
Hgⓘ SchuetteiteHg32+(SO4)O2

Localities in this Region

USA
USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America Plate
Pacific PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Eckel, Edwin Butt, R.G. Yates & A.E. Granger (1941), Quicksilver deposits in San Luis Obispo County and southwestern Monterey County, California: USGS Bulletin 922-R: 515-580
Davis, Fenelon Francis and E.H. Bailey (1966) Mercury. California Division Mines and Geology Bulletin 191: 252
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 351.
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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