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Crystal Peak Mine (Crystal Mine; Quartz Knob occurrence; Unnamed Quartz mine [1]), Quartz Knob, Dog Valley District, Sierra Co., California, USAi
Regional Level Types
Crystal Peak Mine (Crystal Mine; Quartz Knob occurrence; Unnamed Quartz mine [1])Mine
Quartz Knob- not defined -
Dog Valley DistrictMining District
Sierra Co.County
CaliforniaState
USACountry

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Latitude & Longitude (WGS84): 39° 35' 45'' North , 120° 4' 36'' West
Latitude & Longitude (decimal): 39.59581,-120.07672
GeoHash:G#: 9r49784y3
USGS MRDS Record:10111129
Locality type:Mine
Köppen climate type:Csb : Warm-summer Mediterranean climate


A former silica occurrence/mine and Cu-W occurrence located S of center sec. 10, T20N, R17E, MDM, 0.1 km (0.1 mile) N of Quartz Knob (summit) and 4.3 km (2.7 miles) NNE of Crystal Peak (coordinates of record), ½ mile N of Crystal Peak guard station, on National Forest land. MRDS database stated accuracy for this location is 1,000 meters. Operated during WWII for electronics grade quartz crystals.

Local rocks include Tertiary volcanic flow rocks, unit 17 (Cascade Range).

Workings include surface and underground openings.

Regions containing this locality

North America Plate

Plate - 4,949 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


2 valid minerals.

Detailed Mineral List:

Cuprotungstite
Formula: Cu2(WO4)(OH)2
Colour: Yellowish green
Description: Occurs as waxy masses of material in massive quartz.
Reference: Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 338.
Quartz
Formula: SiO2
Colour: Yellow
Description: Occurs as a few large clear crystals in pegmatite.
Reference: Symons, Henry Heilbronner (1940), Quartz gem stones of California: Rocks & Minerals: 15: 39-44; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 316; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 350.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Quartz'4.DA.05SiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Cuprotungstite'7.GB.15Cu2(WO4)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
Basic Anhydrous Molybdates and Tungstates
Cuprotungstite48.3.2.1Cu2(WO4)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H CuprotungstiteCu2(WO4)(OH)2
OOxygen
O CuprotungstiteCu2(WO4)(OH)2
O QuartzSiO2
SiSilicon
Si QuartzSiO2
CuCopper
Cu CuprotungstiteCu2(WO4)(OH)2
WTungsten
W CuprotungstiteCu2(WO4)(OH)2

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

Gelasian - Chattian
1.806 - 28.1 Ma



ID: 2964055
Tertiary volcanic flow rocks, unit 17 (Cascade Range)

Age: Cenozoic (1.806 - 28.1 Ma)

Stratigraphic Name: Colestin Formation; Raymond Peak Andesites; Roxy Formation; Shasta Lavas; Silver Peak Andesites; Table Mountain Latite; Tryon Peak Flows; Warner Basalt; Wasson Formation

Description: Tertiary volcanic flow rocks; minor pyroclastic deposits.

Comments: 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:{andesite,basalt}, Incidental:{rhyolite, dacite, basaltic andesite}

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]

Neogene
2.588 - 23.03 Ma



ID: 3186305
Cenozoic volcanic rocks

Age: Neogene (2.588 - 23.03 Ma)

Stratigraphic Name: Columbia River Basalt

Comments: Columbia Plateau

Lithology: Flood basalt(s); mafic volcanic rocks; basalt

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]

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)
Symons, Henry Heilbronner (1940), Quartz gem stones of California: Rocks & Minerals: 15: 39-44.
U.S. Bureau of Mines Minerals Yearbook for 1957 (1958): volume 3.
U.S. Bureau of Mines Minerals Yearbook for 1958 (1959): volume 3.
U.S. Bureau of Mines Minerals Yearbook for 1959 (1960): volume 3.
U.S. Bureau of Mines Minerals Yearbook for 1960 (1961): volume 3.
U.S. Bureau of Mines Minerals Yearbook for 1961 (1962): volume 3.
U.S. Bureau of Mines Minerals Yearbook for 1962 (1963): volume 3.
U.S. Bureau of Mines Minerals Yearbook for 1963 (1964): volume 3.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 316.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 338, 350.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10111129 & 10286949.
U.S. Bureau of Mines, Minerals Availability System (MAS) file #0060910568.

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