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Los Burros Mining District, Santa Lucia Mts (Santa Lucia Range), Monterey County, California, USAi
Regional Level Types
Los Burros Mining DistrictMining District
Santa Lucia Mts (Santa Lucia Range)Mountain Range
Monterey CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
36° North , 121° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~64km
GRN:
N25W70
Type:
Mining District
KΓΆppen climate type:
Csb : Warm-summer Mediterranean climate
Mindat Locality ID:
208989
Long-form identifier:
mindat:1:2:208989:1
GUID (UUID V4):
8f303850-19ad-4b0a-852f-8d44a01d0dac


A Au mining district located in the SEΒΌ T23S, and in the NEΒΌ T24S, R5E (MD), 45 miles W of King City.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

32 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜ Aragonite
Formula: CaCO3
β“˜ Arsenopyrite
Formula: FeAsS
Description: Occurs in gold-quartz veins below the water table.
β“˜ Awaruite
Formula: Ni3Fe
Description: Identification via electron probe and polished sections of drill cores.
β“˜ 'Axinite Group'
Colour: Pale lavender
Description: Occurs in metamorphosed serpentine.
β“˜ Brucite
Formula: Mg(OH)2
Description: Occurs as rims around olivine fragments and as veins or mixed with chrysotile.
β“˜ Calcite
Formula: CaCO3
β“˜ Chalcopyrite
Formula: CuFeS2
Description: Occurs frequently assciated with gold in lode veins in the district.
β“˜ Chromite
Formula: Fe2+Cr3+2O4
β“˜ Chrysotile
Formula: Mg3(Si2O5)(OH)4
Habit: Fibrous
Description: Occurs in veins to 1Β½ feet (0.5 meters) wide.
β“˜ Cinnabar
Formula: HgS
β“˜ 'Clay minerals'
β“˜ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
β“˜ Clinochlore var. Chromium-bearing Clinochlore
Formula: Mg5(Al,Cr)2Si3O10(OH)8
β“˜ Clinozoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Description: Occurs as boulders of crystalline masses of pinkish gray material.
β“˜ Enstatite
Formula: Mg2Si2O6
Description: Occurs as a major constituent of the primary ultramafic rocks.
β“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜ 'Fayalite-Forsterite Series'
Description: Occurs as 70% to 80% of the peridotite of the complex.
β“˜ 'Ferro-actinolite-Tremolite Series'
References:
Van Nostrand Reinholt Press: 397-398.
Rogers, Austin Flint (1940), Nephrite jade from Monterey County, California (abstract): Geological Society of America Bulletin: 51: 1941
Crippen, R.A. (1951), Nephrite jade and associated rocks of the Cape Martin region, Monterey County, California: California Division Mines Special Report 10-A, 14 pp.: 3-14
Hart, E.W. (1966) Mines and mineral resources of Monterey County, California. California Division Mines and Geology County Report 5, 142 pp.: 43
Heinrich, G.I. (1969) Botryoidal jade in California. Gems and Minerals: 386: 42
Draper, J.W. (1969) Botryoidal jade of the California Coast. Lapidary Journal: 23: 682-686
Ronzio, A.R. and Salmon, M. (1970) Trace elements in jade. Gems and Minerals: 389: 24-25, 45
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
β“˜ Forsterite
Formula: Mg2SiO4
Description: Fo91 : Fa9 in composition.
β“˜ Gold
Formula: Au
Localities: Reported from at least 9 localities in this region.
Description: Occurs in gold-quartz veins.
β“˜ Heazlewoodite
Formula: Ni3S2
Description: Identified in drill cores.
β“˜ Hercynite
Formula: Fe2+Al2O4
Description: Chromian material. A common constituent of dunites and peridotites.
β“˜ 'Hypersthene'
Formula: (Mg,Fe)SiO3
β“˜ Jadeite ?
Formula: Na(Al,Fe3+)Si2O6
β“˜ Lizardite
Formula: Mg3(Si2O5)(OH)4
Description: Occurs as pseudomorphs after enstatite.
β“˜ Magnesiochromite
Formula: MgCr2O4
β“˜ Metacinnabar ?
Formula: HgS
Description: May occur.
β“˜ Nesquehonite
Formula: MgCO3 · 3H2O
Colour: White
Description: Occurs as an efflorescence (powdery film) along the creek bank at the water line.
β“˜ Pentlandite
Formula: (NixFey)Ξ£9S8
Description: Identified in drill cores.
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
β“˜ Rhodochrosite
Formula: MnCO3
Description: Occurs as spherules.
β“˜ Rhodonite
Formula: CaMn3Mn[Si5O15]
Description: Occurs in beach boulders of gem quality.
β“˜ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
β“˜ Spinel
Formula: MgAl2O4
β“˜ Stibnite
Formula: Sb2S3
β“˜ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
β“˜ Uvarovite
Formula: Ca3Cr2(SiO4)3

Gallery:

◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2β“˜ Actinolite
D3[Si2O5](OH)4β“˜ 'Serpentine Subgroup'

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Gold1.AA.05Au
β“˜Awaruite1.AE.20Ni3Fe
Group 2 - Sulphides and Sulfosalts
β“˜Heazlewoodite2.BB.05Ni3S2
β“˜Pentlandite2.BB.15(NixFey)Ξ£9S8
β“˜Metacinnabar ?2.CB.05aHgS
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Cinnabar2.CD.15aHgS
β“˜Stibnite2.DB.05Sb2S3
β“˜Pyrite2.EB.05aFeS2
β“˜Arsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
β“˜Spinel4.BB.05MgAl2O4
β“˜Chromite4.BB.05Fe2+Cr3+2O4
β“˜Magnesiochromite4.BB.05MgCr2O4
β“˜Hercynite4.BB.05Fe2+Al2O4
β“˜Quartz4.DA.05SiO2
β“˜Brucite4.FE.05Mg(OH)2
Group 5 - Nitrates and Carbonates
β“˜Rhodochrosite5.AB.05MnCO3
β“˜Calcite5.AB.05CaCO3
β“˜Aragonite5.AB.15CaCO3
β“˜Nesquehonite5.CA.05MgCO3 Β· 3H2O
Group 9 - Silicates
β“˜Chrysotile9..Mg3(Si2O5)(OH)4
β“˜Forsterite9.AC.05Mg2SiO4
β“˜Uvarovite9.AD.25Ca3Cr2(SiO4)3
β“˜Clinozoisite9.BG.05a(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
β“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜Enstatite9.DA.05Mg2Si2O6
β“˜Jadeite ?9.DA.25Na(Al,Fe3+)Si2O6
β“˜Tremolite9.DE.10β—»Ca2Mg5(Si8O22)(OH)2
β“˜Actinolite9.DE.10β—»Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜Rhodonite9.DK.05CaMn3Mn[Si5O15]
β“˜Clinochlore
var. Chromium-bearing Clinochlore		9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
β“˜9.EC.55Mg5Al(AlSi3O10)(OH)8
β“˜Lizardite9.ED.15Mg3(Si2O5)(OH)4
Unclassified
β“˜'Fayalite-Forsterite Series'-
β“˜'Serpentine Subgroup'-D3[Si2O5](OH)4
β“˜'Hypersthene'-(Mg,Fe)SiO3
β“˜'Ferro-actinolite-Tremolite Series'-
β“˜'Clay minerals'-
β“˜'Axinite Group'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hβ“˜ BruciteMg(OH)2
Hβ“˜ ChrysotileMg3(Si2O5)(OH)4
Hβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Hβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Hβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hβ“˜ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Hβ“˜ LizarditeMg3(Si2O5)(OH)4
Hβ“˜ NesquehoniteMgCO3 · 3H2O
Hβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
Cβ“˜ AragoniteCaCO3
Cβ“˜ CalciteCaCO3
Cβ“˜ NesquehoniteMgCO3 · 3H2O
Cβ“˜ RhodochrositeMnCO3
OOxygen
Oβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oβ“˜ AragoniteCaCO3
Oβ“˜ BruciteMg(OH)2
Oβ“˜ CalciteCaCO3
Oβ“˜ ChrysotileMg3(Si2O5)(OH)4
Oβ“˜ ChromiteFe2+Cr23+O4
Oβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Oβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oβ“˜ EnstatiteMg2Si2O6
Oβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oβ“˜ ForsteriteMg2SiO4
Oβ“˜ HercyniteFe2+Al2O4
Oβ“˜ Hypersthene(Mg,Fe)SiO3
Oβ“˜ JadeiteNa(Al,Fe3+)Si2O6
Oβ“˜ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Oβ“˜ LizarditeMg3(Si2O5)(OH)4
Oβ“˜ MagnesiochromiteMgCr2O4
Oβ“˜ NesquehoniteMgCO3 · 3H2O
Oβ“˜ QuartzSiO2
Oβ“˜ RhodochrositeMnCO3
Oβ“˜ RhodoniteCaMn3Mn[Si5O15]
Oβ“˜ SpinelMgAl2O4
Oβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oβ“˜ UvaroviteCa3Cr2(SiO4)3
Oβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
NaSodium
Naβ“˜ JadeiteNa(Al,Fe3+)Si2O6
MgMagnesium
Mgβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgβ“˜ BruciteMg(OH)2
Mgβ“˜ ChrysotileMg3(Si2O5)(OH)4
Mgβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgβ“˜ EnstatiteMg2Si2O6
Mgβ“˜ ForsteriteMg2SiO4
Mgβ“˜ Hypersthene(Mg,Fe)SiO3
Mgβ“˜ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Mgβ“˜ LizarditeMg3(Si2O5)(OH)4
Mgβ“˜ MagnesiochromiteMgCr2O4
Mgβ“˜ NesquehoniteMgCO3 · 3H2O
Mgβ“˜ SpinelMgAl2O4
Mgβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Alβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Alβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alβ“˜ HercyniteFe2+Al2O4
Alβ“˜ JadeiteNa(Al,Fe3+)Si2O6
Alβ“˜ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Alβ“˜ SpinelMgAl2O4
SiSilicon
Siβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siβ“˜ ChrysotileMg3(Si2O5)(OH)4
Siβ“˜ ClinochloreMg5Al(AlSi3O10)(OH)8
Siβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siβ“˜ EnstatiteMg2Si2O6
Siβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siβ“˜ ForsteriteMg2SiO4
Siβ“˜ Hypersthene(Mg,Fe)SiO3
Siβ“˜ JadeiteNa(Al,Fe3+)Si2O6
Siβ“˜ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Siβ“˜ LizarditeMg3(Si2O5)(OH)4
Siβ“˜ QuartzSiO2
Siβ“˜ RhodoniteCaMn3Mn[Si5O15]
Siβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siβ“˜ UvaroviteCa3Cr2(SiO4)3
Siβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
SSulfur
Sβ“˜ ArsenopyriteFeAsS
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ CinnabarHgS
Sβ“˜ HeazlewooditeNi3S2
Sβ“˜ MetacinnabarHgS
Sβ“˜ Pentlandite(NixFey)Ξ£9S8
Sβ“˜ PyriteFeS2
Sβ“˜ StibniteSb2S3
CaCalcium
Caβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caβ“˜ AragoniteCaCO3
Caβ“˜ CalciteCaCO3
Caβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Caβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caβ“˜ RhodoniteCaMn3Mn[Si5O15]
Caβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caβ“˜ UvaroviteCa3Cr2(SiO4)3
CrChromium
Crβ“˜ ChromiteFe2+Cr23+O4
Crβ“˜ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Crβ“˜ MagnesiochromiteMgCr2O4
Crβ“˜ UvaroviteCa3Cr2(SiO4)3
MnManganese
Mnβ“˜ RhodochrositeMnCO3
Mnβ“˜ RhodoniteCaMn3Mn[Si5O15]
FeIron
Feβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feβ“˜ ArsenopyriteFeAsS
Feβ“˜ AwaruiteNi3Fe
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ ChromiteFe2+Cr23+O4
Feβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feβ“˜ HercyniteFe2+Al2O4
Feβ“˜ Hypersthene(Mg,Fe)SiO3
Feβ“˜ JadeiteNa(Al,Fe3+)Si2O6
Feβ“˜ Pentlandite(NixFey)Ξ£9S8
Feβ“˜ PyriteFeS2
NiNickel
Niβ“˜ AwaruiteNi3Fe
Niβ“˜ HeazlewooditeNi3S2
Niβ“˜ Pentlandite(NixFey)Ξ£9S8
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
AsArsenic
Asβ“˜ ArsenopyriteFeAsS
SbAntimony
Sbβ“˜ StibniteSb2S3
AuGold
Auβ“˜ GoldAu
HgMercury
Hgβ“˜ CinnabarHgS
Hgβ“˜ MetacinnabarHgS

Localities in this Region

USA
USA

Other Regions, Features and Areas containing this locality

North America
North America Plate
Pacific PlateTectonic Plate

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.

References

Hill, James Madison (1923), The Los Burros district, Monterey County, California: USGS Bulletin 735J: 323-336; …Pacific Min. News: 234 (1923).
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 86, 545.
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
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