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East Mayacmas Mining District, Napa County, California, USAi
Regional Level Types
East Mayacmas Mining DistrictMining District
Napa CountyCounty
CaliforniaState
USACountry

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01724280017272011052356.jpg
White Rock magnesite mine (1917)

White Rock Mine, Pope Valley, East Mayacmas Mining District, Napa County, California, USA
06133530017272094064829.jpg
View of the mine entrance.

White Rock Mine, Pope Valley, East Mayacmas Mining District, Napa County, California, USA
06741340017272028646304.jpg
Cinnabar

Aetna Mine, Aetna Springs, East Mayacmas Mining District, Napa County, California, USA
05701480017272011301005.jpg
Cinnabar

Aetna Mine, Aetna Springs, East Mayacmas Mining District, Napa County, California, USA
01724280017272011052356.jpg
White Rock magnesite mine (1917)

White Rock Mine, Pope Valley, East Mayacmas Mining District, Napa County, California, USA
07882040017272298424291.jpg
View of the mine entrance.

White Rock Mine, Pope Valley, East Mayacmas Mining District, Napa County, California, USA
06741340017272028646304.jpg
Cinnabar

Aetna Mine, Aetna Springs, East Mayacmas Mining District, Napa County, California, USA
05701480017272011301005.jpg
Cinnabar

Aetna Mine, Aetna Springs, East Mayacmas Mining District, Napa County, California, USA
08071940017272011153194.jpg
White Rock magnesite mine (1917)

White Rock Mine, Pope Valley, East Mayacmas Mining District, Napa County, California, USA
00628210017272094072827.jpg
View of the mine entrance.

White Rock Mine, Pope Valley, East Mayacmas Mining District, Napa County, California, USA
Latitude & Longitude (WGS84):
38° North , 122° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~41km
GRN:
N26W69
Type:
Mining District
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Mindat Locality ID:
209461
Long-form identifier:
mindat:1:2:209461:1
GUID (UUID V4):
0


No description has been added for this locality. Can you add one?

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

16 valid minerals.

Rock Types Recorded


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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ 'Aragotite'
Formula: (C,H)
ⓘ Calcite
Formula: CaCO3
ⓘ Calomel
Formula: [Hg2]2+Cl2
Colour: White
Description: Occurs as coatings on metacinnabar.
ⓘ Chromite
Formula: Fe2+Cr3+2O4
Localities: Reported from at least 15 localities in this region.
ⓘ Cinnabar
Formula: HgS
Localities: Reported from at least 11 localities in this region.
ⓘ Cristobalite
Formula: SiO2
Description: Occurs as a replacement of serpentine; "beta" material.
ⓘ Epsomite
Formula: MgSO4 · 7H2O
Description: Occurs as extensive deposits.
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ Magnesiochromite
Formula: MgCr2O4
ⓘ Magnesite
Formula: MgCO3
ⓘ 'Manganese Oxides'
ⓘ Metacinnabar
Formula: HgS
Colour: Black
Description: Occurs as seemingly amorphous masses.
ⓘ Millerite
Formula: NiS
Description: Occurs as minute crystals.
ⓘ Morenosite
Formula: NiSO4 · 7H2O
Description: Occurs as coatings on millerite.
ⓘ 'Napalite'
Formula: C3H4
ⓘ Native Mercury
Formula: Hg
ⓘ Native Sulphur
Formula: S8
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Mercury1.AD.05Hg
ⓘNative Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
ⓘMetacinnabar2.CB.05aHgS
ⓘMillerite2.CC.20NiS
ⓘCinnabar2.CD.15aHgS
ⓘPyrite2.EB.05aFeS2
Group 3 - Halides
ⓘCalomel3.AA.30[Hg2]2+Cl2
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnesiochromite4.BB.05MgCr2O4
ⓘQuartz4.DA.05SiO2
ⓘCristobalite4.DA.15SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘMagnesite5.AB.05MgCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘEpsomite7.CB.40MgSO4 · 7H2O
ⓘMorenosite7.CB.40NiSO4 · 7H2O
Group 9 - Silicates
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified
ⓘ'Aragotite'-(C,H)
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Manganese Oxides'-
ⓘ'Napalite'-C3H4

List of minerals for each chemical element

HHydrogen
Hⓘ Aragotite(C,H)
Hⓘ EpsomiteMgSO4 · 7H2O
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ MorenositeNiSO4 · 7H2O
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
Hⓘ NapaliteC3H4
CCarbon
Cⓘ Aragotite(C,H)
Cⓘ CalciteCaCO3
Cⓘ MagnesiteMgCO3
Cⓘ NapaliteC3H4
OOxygen
Oⓘ CalciteCaCO3
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ CristobaliteSiO2
Oⓘ EpsomiteMgSO4 · 7H2O
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ MagnesiteMgCO3
Oⓘ MagnesiochromiteMgCr2O4
Oⓘ MorenositeNiSO4 · 7H2O
Oⓘ QuartzSiO2
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
MgMagnesium
Mgⓘ EpsomiteMgSO4 · 7H2O
Mgⓘ MagnesiteMgCO3
Mgⓘ MagnesiochromiteMgCr2O4
AlAluminium
Alⓘ KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Siⓘ CristobaliteSiO2
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ QuartzSiO2
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sⓘ CinnabarHgS
Sⓘ EpsomiteMgSO4 · 7H2O
Sⓘ MetacinnabarHgS
Sⓘ MilleriteNiS
Sⓘ MorenositeNiSO4 · 7H2O
Sⓘ PyriteFeS2
Sⓘ Native SulphurS8
ClChlorine
Clⓘ Calomel[Hg2]2+Cl2
CaCalcium
Caⓘ CalciteCaCO3
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
Crⓘ MagnesiochromiteMgCr2O4
FeIron
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ PyriteFeS2
NiNickel
Niⓘ MilleriteNiS
Niⓘ MorenositeNiSO4 · 7H2O
HgMercury
Hgⓘ Calomel[Hg2]2+Cl2
Hgⓘ CinnabarHgS
Hgⓘ Native MercuryHg
Hgⓘ MetacinnabarHgS

Localities in this Region

USA
USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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