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Amargosa group (Red Feather claim; Red Feather deposit; La Frentz; Macy; Black Brothers; Llewellyn Iron property), Ritter Ridge, Palmdale, Los Angeles Co., California, USAi
Regional Level Types
Amargosa group (Red Feather claim; Red Feather deposit; La Frentz; Macy; Black Brothers; Llewellyn Iron property)- not defined -
Ritter RidgeRidge
Palmdale- not defined -
Los Angeles Co.County
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
34° 34' 58'' North , 118° 11' 11'' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Desert View Highlands2,360 (2011)3.2km
Palmdale158,351 (2017)6.4km
Quartz Hill10,912 (2011)7.5km
Leona Valley1,607 (2011)10.1km
Vincent15,922 (2011)11.2km


A former Mn mine located in the NE¼ sec. 30, T6N, R12W, and in sec. 24, T6N, R13W, SBM, on Ritter Ridge.

Mineralization is hosted in rocks of the Great Smoky Group (schist).

Regions containing this locality

Pacific OceanOcean
Pacific PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

2 valid minerals.

Detailed Mineral List:

'Psilomelane'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Rhodonite
Formula: Mn2+SiO3
Colour: Deep pink
Description: Occurs as pockets 1 to 2 feet (0.3 - 0.6 meters) thick of fairly pure pink massive material and with crystals to 2.5 cm.
Reference: Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 101-103; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 411.
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 70, 96; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 496.

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
Rhodonite9.DK.05Mn2+SiO3
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Unclassified Minerals, Rocks, etc.
'Psilomelane'-

List of minerals arranged by Dana 8th Edition classification

Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=5
Rhodonite65.4.1.1Mn2+SiO3
Unclassified Minerals, Mixtures, etc.
'Psilomelane'-

List of minerals for each chemical element

OOxygen
O RhodoniteMn2+SiO3
O SpessartineMn32+Al2(SiO4)3
AlAluminium
Al SpessartineMn32+Al2(SiO4)3
SiSilicon
Si RhodoniteMn2+SiO3
Si SpessartineMn32+Al2(SiO4)3
MnManganese
Mn RhodoniteMn2+SiO3
Mn SpessartineMn32+Al2(SiO4)3

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

Holocene - Pliocene
0 - 5.333 Ma



ID: 2885167
Quaternary alluvium and marine deposits

Age: Cenozoic (0 - 5.333 Ma)

Stratigraphic Name: Temescal Formation; Modesto Formation; Victor Formation; Alameda Formation; Aromas Red Sands; Bautista Beds; Brawley Formation; Borrego Formation; Burnt Canyon Breccia; Cabezon Fanglomerate; Campus Formation; Casitas Formation; Chemehuevi Formation; Corcoran Clay; Cushenbury Springs Formation; Dos Picachos Gravels; Dripping Springs Formation; Frazier Mountain Formation; Friant Formation; Harold Formation; Heights Fanglomerate; Hookton Formation; Huichica Formation; La Habra Formation; Manix Lake Beds; Mohawk Lake Beds; Montezuma Formation; Nadeau Gravel; Ocotillo Conglomerate; Orcutt Formation; Pacoima Formation; Pauba Formation; Peckham Formation; Pinto Formation; Resting Springs Formation; Riverbank Formation; Rohnerville Formation; San Dimas Formation; Shoemaker Gravel; Temecula Arkose; Battery Formation; Bay Point Formation; Colma Formation; Lindavista Formation; Lomita Marl; Merritt Sand; Millerton Formation; Palos Verdes Sand; San Pedro Formation; Sweitzer Formation; Timms Point Silt

Description: Alluvium, lake, playa, and terrace deposits; unconsolidated and semi-consolidated. Mostly nonmarine, but includes marine deposits near the coast.

Lithology: Major:{coarse alluvium}, Minor:{fine alluvium}

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]

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]

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)
Trask, Parker Davies, Ivan F. Wilson & F.S. Simons (1943), Manganese deposits of California – a summary report: California Division Mines Bulletin 125: 65, 129.
Trask, Parker Davies (1950) Geologic description of the manganese deposits of California. California Division of Mines Bulletin 152, 378 pp.: 100-101, 102-103.
California Journal of Mines and Geology (1954): 50(3&4) (July-October): 639.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 411.

Localities in this Region
Show map

  • California
    • Los Angeles Co.
      • Palmdale
        • Ritter Ridge
          • Amargosa group (Red Feather claim; Red Feather deposit; La Frentz; Macy; Black Brothers; Llewellyn Iron property)

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