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Desert View Mine, Fawnskin (Grout), Bear Valley District, San Bernardino Mts, San Bernardino Co., California, USAi
Regional Level Types
Desert View MineMine
Fawnskin (Grout)- not defined -
Bear Valley DistrictMining District
San Bernardino MtsMountain Range
San Bernardino Co.County
CaliforniaState
USACountry

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Key
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Latitude & Longitude (WGS84): 34° 19' 21'' North , 116° 57' 55'' West
Latitude & Longitude (decimal): 34.32250,-116.96528
GeoHash:G#: 9qhg62hrp
USGS MRDS Record:10035817
Locality type:Mine
Köppen climate type:Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Big Bear Lake5,213 (2017)10.0km
Big Bear City12,304 (2017)13.0km
Lucerne Valley5,811 (2011)13.5km
Running Springs4,862 (2011)18.4km
Lake Arrowhead12,424 (2011)22.2km


A Au-Fe-Zn occurrence/claim/prospect/mine located in the NE¼ sec. 27, T3N, R1W, SBM, about 6.3 km (4 miles) NNW of Fawnskin, E of Greenlead Creek, on National Forest land. MRDS database stated accuracy for this location is 1,000 meters. Idle in 1958.

This locality is very significant in view of the assemblage of rare mineral species that are common in only one other location at Franklin/Ogdensburg, New Jersey. It is only the second location for Hardystonite. The assemblage provides many attractive, multi-colored, fluorescent mineral specimens. This is a privately held claim. All unauthorized mineral collecting is prohibited.

Mineralization is hosted in dolomite. The ore body is podiform. Associated rocks include quartz monzonite. The hematite-rich part of the skarn is irregular, 12 to 30 inches (30 to 75 cm) thick and dipping steeply. It can be traced NW of the mine area for about 200 yards N10W across Greenlead Road. The hematite is described as massive and specular. The epidote is coarse, with surface dimensions of 10 by 50 feet. Local rocks include Carboniferous marine rocks, unit 1 (Western Mojave Desert).

Workings include underground openings comprised of a crosscut adit 30 feet long, driven E into hematite-rich skarn stringers.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


15 valid minerals.

Detailed Mineral List:

Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Leavens & Patton: Axis 4 (1)13p (2008)
Calcite
Formula: CaCO3
Reference: Leavens & Patton: Axis 4 (1)13p (2008)
Copper
Formula: Cu
Reference: Verbeek, Earl R. and Van Fleet, James, 2014, Hardystonite from the Desert View Mine, California: The Picking Table, vol. 55, no. 1, p. 15-17.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Leavens & Patton: Axis 4 (1)13p (2008)
Franklinite
Formula: Zn2+Fe3+2O4
Reference: Leavens & Patton: Axis 4 (1)13p (2008)
Grossular
Formula: Ca3Al2(SiO4)3
Reference: Leavens & Patton: Axis 4 (1)13p (2008)
Hardystonite
Formula: Ca2Zn(Si2O7)
Reference: Verbeek, Earl R. and Van Fleet, James, 2014, Hardystonite from the Desert View Mine, California: The Picking Table, vol. 55, no. 1, p. 15-17.
Hematite
Formula: Fe2O3
Reference: Leavens & Patton, Axis 4 (1)13p (2008)
Hetaerolite
Formula: ZnMn2O4
Reference: Leavens & Patton: Axis 4 (1)13p (2008)
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Leavens & Patton: Axis 4 (1)13p (2008)
Microcline
Formula: K(AlSi3O8)
Reference: Leavens & Patton, Axis 4 (1)13p (2008)
Quartz
Formula: SiO2
Reference: Leavens & Patton: Axis 4 (1)13p (2008)
Willemite
Formula: Zn2SiO4
Reference: Rocks & Min.:64:58.
Wollastonite
Formula: CaSiO3
Fluorescence: Orange (SWUV)
Reference: Leavens & Patton (2008): Axis: 4(1), 13p.
Zincite
Formula: ZnO
Reference: Leavens & Patton: Axis 4 (1)13p (2008)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Group 4 - Oxides and Hydroxides
Franklinite4.BB.05Zn2+Fe3+2O4
Hematite4.CB.05Fe2O3
Hetaerolite4.BB.10ZnMn2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Zincite4.AB.20ZnO
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Grossular9.AD.25Ca3Al2(SiO4)3
Hardystonite9.BB.10Ca2Zn(Si2O7)
Microcline9.FA.30K(AlSi3O8)
Willemite9.AA.05Zn2SiO4
Wollastonite9.DG.05CaSiO3

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Group 4 - SIMPLE OXIDES
AX
Zincite4.2.2.1ZnO
A2X3
Hematite4.3.1.2Fe2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Franklinite7.2.2.4Zn2+Fe3+2O4
Hetaerolite7.2.7.2ZnMn2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Willemite51.1.1.2Zn2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Grossular51.4.3b.2Ca3Al2(SiO4)3
Group 55 - SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
Si2O7 Groups, Generally with No Additional Anions with cations in [8] and lower coordination
Hardystonite55.4.2.2Ca2Zn(Si2O7)
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=3
Wollastonite65.2.1.1cCaSiO3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Microcline76.1.1.5K(AlSi3O8)

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
CCarbon
C CalciteCaCO3
OOxygen
O WillemiteZn2SiO4
O FrankliniteZn2+Fe23+O4
O ZinciteZnO
O MagnetiteFe2+Fe23+O4
O QuartzSiO2
O CalciteCaCO3
O AndraditeCa3Fe23+(SiO4)3
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O GrossularCa3Al2(SiO4)3
O WollastoniteCaSiO3
O HetaeroliteZnMn2O4
O HematiteFe2O3
O MicroclineK(AlSi3O8)
O HardystoniteCa2Zn(Si2O7)
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al GrossularCa3Al2(SiO4)3
Al MicroclineK(AlSi3O8)
SiSilicon
Si WillemiteZn2SiO4
Si QuartzSiO2
Si AndraditeCa3Fe23+(SiO4)3
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si GrossularCa3Al2(SiO4)3
Si WollastoniteCaSiO3
Si MicroclineK(AlSi3O8)
Si HardystoniteCa2Zn(Si2O7)
KPotassium
K MicroclineK(AlSi3O8)
CaCalcium
Ca CalciteCaCO3
Ca AndraditeCa3Fe23+(SiO4)3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca GrossularCa3Al2(SiO4)3
Ca WollastoniteCaSiO3
Ca HardystoniteCa2Zn(Si2O7)
MnManganese
Mn HetaeroliteZnMn2O4
FeIron
Fe FrankliniteZn2+Fe23+O4
Fe MagnetiteFe2+Fe23+O4
Fe AndraditeCa3Fe23+(SiO4)3
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe HematiteFe2O3
CuCopper
Cu CopperCu
ZnZinc
Zn WillemiteZn2SiO4
Zn FrankliniteZn2+Fe23+O4
Zn ZinciteZnO
Zn HetaeroliteZnMn2O4
Zn HardystoniteCa2Zn(Si2O7)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Cretaceous
66 - 145 Ma



ID: 3192002
Mesozoic intrusive rocks

Age: Cretaceous (66 - 145 Ma)

Lithology: Intrusive igneous rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Pennsylvanian - Neoproterozoic
298.9 - 1000 Ma



ID: 2928432
Carboniferous marine rocks, unit 1 (Western Mojave Desert)

Age: Neoproterozoic to Carboniferous (298.9 - 1000 Ma)

Stratigraphic Name: Furnace Limestone; Oro Grande Series; Bird Spring Formation; Monte Cristo Limestone; Sultan Limestone; Nopah Formation; Bonanza King Formation; Carrara Formation; Zabriskie Quartzite; Wood Canyon Formation

Description: Shale, sandstone, conglomerate, limestone, dolomite, chert, hornfels, marble, quartzite; in part pyroclastic rocks

Comments: Southern California (San Bernardino Mountains and western Mojave Desert).Consists primarily of limestone, dolomite, calcitic and dolomitic marble, schist, and quartzite. Most rocks are metamorphosed.Includes rocks of Late Proterozoic to Pennsylvanian age. Original map source: Saucedo, G.J., Bedford, D.R., Raines, G.L., Miller, R.J., and Wentworth, C.M., 2000, GIS Data for the Geologic Map of California, California Department of Conservation, Division of Mines and Geology, CD-ROM 2000-07, scale 1:750,000.

Lithology: Major:{marble}, Minor:{limestone,dolostone}, Incidental:{mica schist, quartzite, hornfels}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Richmond, J.F. and Gray, C.H., Jr. (1960), Geology of the San Bernardino Mountains North of Big Bear Lake, California: California Division of Mines, Special Report 65: 60.
Rocks & Minerals (1989): 64: 58.
Miller, F.K., Matti, J.C., Brown, H.J., and Powell, R.E. (2001), Digital geologic map of the Fawnskin 7.5ʹ quadrangle, California, v. 1.1: U.S. Geological Survey Open-File Report 98-579, 18 pp.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10035817 & 10140750.
Leavens, P.B. & J.D. Patton (2008) The Desert View Mine, San Bernardino Mountains, California: a possible intermediate between Langban, Sweden and Franklin, New Jersey, Axis 4(1) 13p.
Verbeek, Earl R. and Van Fleet, James (2014), Hardystonite from the Desert View Mine, California: The Picking Table: 55(1): 15-17.
U.S. Bureau of Mines, Minerals Availability System (MAS) file #0060710890.


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