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Devil Peak, Ralston Divide Mining District, Placer Co., California, USAi
Regional Level Types
Devil PeakPeak
Ralston Divide Mining DistrictMining District
Placer Co.County
CaliforniaState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
38° 57' 32'' North , 120° 32' 49'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Pollock Pines6,871 (2017)22.2km
Foresthill1,483 (2011)24.4km
Georgetown2,367 (2011)25.9km
Camino1,750 (2011)26.9km
Placerville10,650 (2017)33.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
El Dorado County Mineral and Gem SocietyPlacerville, California34km
Gold Country Treasure SeekersPlacerville, California34km


A summit located along Big Grizzly Canyon.

The USGS describes Devil Peak as an unclassified Paleozoic metamorphic rock. In actuality Devil Peak is a mid-grade metamorphic mica schist, consisting of muscovite replacement of amphibole (probably hornblende). This alpine facies was broken and intruded by hydro-thermal quartz. The quartz has many vugs that produce large quartz crystals, often with interesting inclusions.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

β“˜ Brookite
Formula: TiO2
Reference: Tony Charlton
β“˜ Dolomite
Formula: CaMg(CO3)2
Reference: Tony Carlton
β“˜ Hematite
Formula: Fe2O3
Reference: Tony Charlton
β“˜ 'Hornblende'
Reference: Tony Charlton
β“˜ 'K Feldspar'
Formula: KAlSi3O8
Reference: Tony Carlton
β“˜ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
Reference: Tony Carlton
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Tony Charlton
β“˜ Pyrite
Formula: FeS2
Reference: Tony Charlton
β“˜ Quartz
Formula: SiO2
Reference: Tony Charlton;
β“˜ Quartz var. Rutilated Quartz
Formula: SiO2
Reference: Tony Charlton
β“˜ Quartz var. Smoky Quartz
Formula: SiO2
Reference: Terry Szenics
β“˜ Rutile
Formula: TiO2
Reference: Terry Szenics
β“˜ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Tony Charlton

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜Brookite4.DD.10TiO2
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz4.DA.05SiO2
β“˜var. Rutilated Quartz4.DA.05SiO2
β“˜var. Smoky Quartz4.DA.05SiO2
β“˜Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
β“˜Dolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Unclassified Minerals, Rocks, etc.
β“˜'Hornblende'-
β“˜'K Feldspar'-KAlSi3O8
β“˜'var. Adularia'-KAlSi3O8

List of minerals for each chemical element

HHydrogen
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
BBoron
Bβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
Cβ“˜ DolomiteCaMg(CO3)2
OOxygen
Oβ“˜ RutileTiO2
Oβ“˜ Quartz var. Smoky QuartzSiO2
Oβ“˜ QuartzSiO2
Oβ“˜ Quartz var. Rutilated QuartzSiO2
Oβ“˜ BrookiteTiO2
Oβ“˜ HematiteFe2O3
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oβ“˜ K Feldspar var. AdulariaKAlSi3O8
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ K FeldsparKAlSi3O8
NaSodium
Naβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mgβ“˜ DolomiteCaMg(CO3)2
AlAluminium
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alβ“˜ K Feldspar var. AdulariaKAlSi3O8
Alβ“˜ K FeldsparKAlSi3O8
SiSilicon
Siβ“˜ Quartz var. Smoky QuartzSiO2
Siβ“˜ QuartzSiO2
Siβ“˜ Quartz var. Rutilated QuartzSiO2
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siβ“˜ K Feldspar var. AdulariaKAlSi3O8
Siβ“˜ K FeldsparKAlSi3O8
SSulfur
Sβ“˜ PyriteFeS2
KPotassium
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ K Feldspar var. AdulariaKAlSi3O8
Kβ“˜ K FeldsparKAlSi3O8
CaCalcium
Caβ“˜ DolomiteCaMg(CO3)2
TiTitanium
Tiβ“˜ RutileTiO2
Tiβ“˜ BrookiteTiO2
FeIron
Feβ“˜ PyriteFeS2
Feβ“˜ HematiteFe2O3
Feβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate
USA

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