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Sierra Madre, Los Angeles Co., California, USAi
Regional Level Types
Sierra MadreSierra
Los Angeles Co.County
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
34° 9' 42'' North , 118° 3' 10'' West
Latitude & Longitude (decimal):
34.16167,-118.05278
GeoHash:
G#: 9qh43duw4
GRN:
N23W70
Locality type:
Sierra
KΓΆppen climate type:
Csb : Warm-summer Mediterranean climate


A populated place (town).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

10 valid minerals.

Detailed Mineral List:

β“˜ Azurite
Formula: Cu3(CO3)2(OH)2
Reference: Gay, T.E. and Hoffman, S.R. (1954) Mines and mineral deposits of Los Angeles County, California. California Journal of Mines and Geology, California Division of Mines (Report 50): 50(3&4): 614; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 225.
β“˜ Bornite
Formula: Cu5FeS4
Reference: Sampson, Reid J. (1937), Mineral resources of Los Angeles County, California: California Journal of Mines and Geology, California Mining Bureau (Report 33): 33(3): 176-177; Gay, T.E. and Hoffman, S.R. (1954) Mines and mineral deposits of Los Angeles County, California. California Journal of Mines and Geology, California Division of Mines (Report 50): 50(3&4): 614; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 94.
β“˜ Brochantite
Formula: Cu4(SO4)(OH)6
Reference: Dr. Robert Housley, pers. comm., 04/2022, collected decades ago, Raman confirmed.
β“˜ Chalcopyrite
Formula: CuFeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
Reference: Gay, T.E. and Hoffman, S.R. (1954) Mines and mineral deposits of Los Angeles County, California. California Journal of Mines and Geology, California Division of Mines (Report 50): 50(3&4): 614; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 225.
β“˜ Molybdenite
Formula: MoS2
Description: Occurs in minor amounts.
Reference: Sampson, Reid J. (1937), Mineral resources of Los Angeles County, California: California Journal of Mines and Geology, California Mining Bureau (Report 33): 33(3): 176-177; Gay, T.E. and Hoffman, S.R. (1954) Mines and mineral deposits of Los Angeles County, California. California Journal of Mines and Geology, California Division of Mines (Report 50): 50(3&4): 614; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 80, 94.
β“˜ Posnjakite
Formula: Cu4(SO4)(OH)6 · H2O
Colour: pale blue
Description: pale blue crystals, distinct color from brochantite
Reference: Dr. Robert Housley, pers. comm., 04/2022, collected decades ago, Raman confirmed.
β“˜ Pyrite
Formula: FeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ Quartz
Formula: SiO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ Titanite
Formula: CaTi(SiO4)O
Colour: Green, brown, yellow
Description: Occurs as crystals to 1/8 inch (0.4 cm) in large boulders of diorite in alluvial fan material.
Reference: Metzer, Stephen (1954), Sphene locality in Sierra Madre Canyon: Gems & Minerals, No. 206: 56-57; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 344.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Bornite2.BA.15Cu5FeS4
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Molybdenite2.EA.30MoS2
β“˜Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Azurite5.BA.05Cu3(CO3)2(OH)2
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Brochantite7.BB.25Cu4(SO4)(OH)6
β“˜Posnjakite7.DD.10Cu4(SO4)(OH)6 Β· H2O
Group 9 - Silicates
β“˜Titanite9.AG.15CaTi(SiO4)O

List of minerals for each chemical element

HHydrogen
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ AzuriteCu3(CO3)2(OH)2
Hβ“˜ PosnjakiteCu4(SO4)(OH)6 · H2O
Hβ“˜ BrochantiteCu4(SO4)(OH)6
CCarbon
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ AzuriteCu3(CO3)2(OH)2
OOxygen
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ TitaniteCaTi(SiO4)O
Oβ“˜ AzuriteCu3(CO3)2(OH)2
Oβ“˜ PosnjakiteCu4(SO4)(OH)6 · H2O
Oβ“˜ BrochantiteCu4(SO4)(OH)6
SiSilicon
Siβ“˜ QuartzSiO2
Siβ“˜ TitaniteCaTi(SiO4)O
SSulfur
Sβ“˜ BorniteCu5FeS4
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ PyriteFeS2
Sβ“˜ MolybdeniteMoS2
Sβ“˜ PosnjakiteCu4(SO4)(OH)6 · H2O
Sβ“˜ BrochantiteCu4(SO4)(OH)6
CaCalcium
Caβ“˜ TitaniteCaTi(SiO4)O
TiTitanium
Tiβ“˜ TitaniteCaTi(SiO4)O
FeIron
Feβ“˜ BorniteCu5FeS4
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ PyriteFeS2
CuCopper
Cuβ“˜ BorniteCu5FeS4
Cuβ“˜ MalachiteCu2(CO3)(OH)2
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ AzuriteCu3(CO3)2(OH)2
Cuβ“˜ PosnjakiteCu4(SO4)(OH)6 · H2O
Cuβ“˜ BrochantiteCu4(SO4)(OH)6
MoMolybdenum
Moβ“˜ MolybdeniteMoS2

Localities in this Region

USA

Other Regions, Features and Areas containing this locality

North America
North America Plate
Pacific PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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