Pure Quill Mine (Pure Quill deposit; Gold Bar Tungsten; Quill Mine), West Ord Mountain, Ord Mountains, Ord Mining District, San Bernardino Co., California, USAi
|Regional Level Types|
|Pure Quill Mine (Pure Quill deposit; Gold Bar Tungsten; Quill Mine)||Mine|
|West Ord Mountain||Mountain|
|Ord Mountains||Mountain Range|
|Ord Mining District||Mining District|
|San Bernardino Co.||County|
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Latitude & Longitude (WGS84):
34° 38' 46'' North , 116° 53' 25'' West
Latitude & Longitude (decimal):
Köppen climate type:
A W occurrence located in sec. 4, T6N, R1E, SBM, 1.5 km (0.9 mile) E of West Ord Mountain (coordinates of record). MRDS database stated accuracy for this location is 10 meters.
NOTE: The geographic coordinates presented in this file are adjusted to the exact location of this mine on the topo map versus the USGS MRDS database file coordinates.
Mineralization is hosted in amphibolite, mica schist, granite and quartzite. The ore body is irregular in form, strikes NW and dips steeply SW, at a width of 6.1 meters and a length of 304.8 meters. The complex is chiefly quartzite, mica schist and foliated granitic rocks, cut by acidic and basic dikes. Scheelite is discontinuously disseminated in an amphibolite layer within a crystalline rock complex. The amphibolite layer is composed essentially of dark green amphibole with subordinate phgoclase (sic), and is from 5 to 20 feet wide. Local rocks include Precambrian rocks, undivided, unit 2 (Mojave Desert and Transverse Ranges).
Workings include surface and underground openings. The site was first explored by several small cuts. Later, a tunnel was driven SW for 200 feet, encountering the tungsten-bearing zone at 170 feet. The zone was followed by drifts 138 feet NW and 87 feet SE.
Select Mineral List TypeStandard Detailed Strunz Dana Chemical Elements
1 valid mineral.
Rock Types Recorded
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Select Rock List TypeAlphabetical List Tree Diagram
Detailed Mineral List:
| ⓘ Scheelite|
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
List of minerals arranged by Strunz 10th Edition classification
|Group 7 - Sulphates, Chromates, Molybdates and Tungstates|
List of minerals arranged by Dana 8th Edition classification
|Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES|
List of minerals for each chemical element
Sort byYear (asc) Year (desc) Author (A-Z) Author (Z-A)
Wright, L.A., et al (1953), Mines and mineral resources of San Bernardino County, California: California Journal of Mines and Geology, California Division of Mines (Report 49): 49(1-2): 150-151.
Lemmon, Dwight Moulton and Tweto, O.L. (1962) Tungsten in the United States, exclusive of Alaska and Hawaii. USGS Mineral Investigative Resources Map MR-25.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10008642 & 10141175.
U.S. Bureau of Mines, Minerals Availability System (MAS) file #0060710375.
|USGS MRDS Record:||10008642|
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