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La Paz Mining District (Weaver Mining District), Dome Rock Mountains, La Paz County, Arizona, USAi
Regional Level Types
La Paz Mining District (Weaver Mining District)Mining District
Dome Rock MountainsMountain Range
La Paz CountyCounty
ArizonaState
USACountry

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PhotosMapsSearchMineralogy
09383890017272064276074.jpg
Prospect Pit

Green Glory Mine, La Paz Mining District, Dome Rock Mountains, La Paz County, Arizona, USA
01976020017272029279820.jpg
Copperstone Mine Map

Copperstone Mine, La Paz Mining District, Dome Rock Mountains, La Paz County, Arizona, USA
09017420017272029276737.jpg
Mine Engineer and Wife

Copperstone Mine, La Paz Mining District, Dome Rock Mountains, La Paz County, Arizona, USA
02137050017272064281349.jpg
Malachite

Copperstone Mine, La Paz Mining District, Dome Rock Mountains, La Paz County, Arizona, USA
09383890017272064276074.jpg
Prospect Pit

Green Glory Mine, La Paz Mining District, Dome Rock Mountains, La Paz County, Arizona, USA
02924350017272029227430.jpg
Copperstone Mine Map

Copperstone Mine, La Paz Mining District, Dome Rock Mountains, La Paz County, Arizona, USA
08166180017272029222423.jpg
Mine Engineer and Wife

Copperstone Mine, La Paz Mining District, Dome Rock Mountains, La Paz County, Arizona, USA
03924910017272029234925.jpg
Malachite

Copperstone Mine, La Paz Mining District, Dome Rock Mountains, La Paz County, Arizona, USA
05127920017272064284043.jpg
Prospect Pit

Green Glory Mine, La Paz Mining District, Dome Rock Mountains, La Paz County, Arizona, USA
01976020017272029279820.jpg
Copperstone Mine Map

Copperstone Mine, La Paz Mining District, Dome Rock Mountains, La Paz County, Arizona, USA
Latitude & Longitude (WGS84):
33° North , 114° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~26km
GRN:
N23W68
Type:
Mining District
Köppen climate type:
BWh : Hot deserts climate
Mindat Locality ID:
33540
Long-form identifier:
mindat:1:2:33540:4
GUID (UUID V4):
0


A Au-Ag-W-Mn-Cu-Pb-kyanite-Th-REE mining area located in T2-6N, R20 & 21W, G&SRM, on the West side and northern portion of the Dome Rock Mountains. Started in the 1860's.

The area is made up of sedimentary and igneous schists, locally intruded by granite. Larger and more persistent veins generally occur parallel to the schistosity and small gash veins cut across the scistosity.

Mineralization is varied: (1): Gold placer deposits, in gravels of numerous gulches and in terrace gravels bordering the washes, derived from small, lensing, gold-bearing quartz veins and veinlets in Mesozoic and early Tertiary metamorphic and granitic rocks; (2) Spotty gold and silver mineralization with some base metals in quartz fissure veins in Mesozoic metamorphic rock, intruded by Mesozoic or early Tertiary granitic rock; (3) Sporadic tungsten mineralization in contact metamorphic deposits along faults or intrusive contacts and associated with marble beds in Mesozoic metamorphic beds; and, (4) Manganese oxides in iregular bodies along bedding plane fractures in Mesozoic metamorphic rocks.

This district features extensive placer operations in gulches and on terraces from the 1860's, mainly prior to 1900. Several relatively small scattered mining operations for precious and base metals from the late 1800's to about 1960. Tungsten and manganese prospecting and mining were carried on during periods of premium prices. Total estimated placer production would be around 100,000 oz. gold with about 25,000 oz. silver. Mine production of precious and base metals would amount to some 11,200 tons of ore containing about 2,400 oz. gold, 1,000 oz. silver, 8 tons of copper, and 2 tons of lead. Some 5,000 tons of tungsten ore containing about 0.4% WO3 and some 400 long tons of 41-51% Mn ore were also produced.

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

24 valid minerals.

Rock Types Recorded


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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Andalusite
Formula: Al2(SiO4)O
Description: Occurs as small crystalline masses in granite.
ⓘ Baryte
Formula: BaSO4
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Description: Occurs as a biotite schist.
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘ Cinnabar
Formula: HgS
Description: Sparsely distributed in veins.
ⓘ 'Copper Stain'
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ 'Feldspar Group'
ⓘ Fluorite
Formula: CaF2
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Hematite
Formula: Fe2O3
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ Kyanite
Formula: Al2(SiO4)O
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Manganite
Formula: Mn3+O(OH)
ⓘ 'Mica Group'
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Gold
Formula: Au
Localities: Reported from at least 13 localities in this region.
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ 'Psilomelane'
ⓘ Pyrite
Formula: FeS2
Localities: Reported from at least 7 localities in this region.
ⓘ Pyrite var. Gold-bearing Pyrite
Formula: FeS2
ⓘ Pyrolusite
Formula: Mn4+O2
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Amethyst
Formula: SiO2
ⓘ Scheelite
Formula: Ca(WO4)
ⓘ Thorite
Formula: Th(SiO4)
Description: Occurs in small amounts in a quartz vein that cuts a biotite schist.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘCinnabar2.CD.15aHgS
ⓘPyrite
var. Gold-bearing Pyrite		2.EB.05aFeS2
ⓘ2.EB.05aFeS2
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz
var. Amethyst		4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘPyrolusite4.DB.05Mn4+O2
ⓘManganite4.FD.15Mn3+O(OH)
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘThorite9.AD.30Th(SiO4)
ⓘAndalusite9.AF.10Al2(SiO4)O
ⓘKyanite9.AF.15Al2(SiO4)O
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Feldspar Group'-
ⓘ'Psilomelane'-
ⓘ'Mica Group'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Copper Stain'-

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ GoethiteFe3+O(OH)
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ ManganiteMn3+O(OH)
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ CalciteCaCO3
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ Quartz var. AmethystSiO2
Oⓘ AndalusiteAl2(SiO4)O
Oⓘ BaryteBaSO4
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ GoethiteFe3+O(OH)
Oⓘ HematiteFe2O3
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ KyaniteAl2(SiO4)O
Oⓘ ManganiteMn3+O(OH)
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ PyrolusiteMn4+O2
Oⓘ QuartzSiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ ThoriteTh(SiO4)
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluoriteCaF2
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ AndalusiteAl2(SiO4)O
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ KyaniteAl2(SiO4)O
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ Quartz var. AmethystSiO2
Siⓘ AndalusiteAl2(SiO4)O
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ KyaniteAl2(SiO4)O
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ ThoriteTh(SiO4)
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SSulfur
Sⓘ Pyrite var. Gold-bearing PyriteFeS2
Sⓘ BaryteBaSO4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ CinnabarHgS
Sⓘ PyriteFeS2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ FluoriteCaF2
Caⓘ ScheeliteCa(WO4)
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MnManganese
Mnⓘ ManganiteMn3+O(OH)
Mnⓘ PyrolusiteMn4+O2
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ Pyrite var. Gold-bearing PyriteFeS2
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ GoethiteFe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuⓘ MalachiteCu2(CO3)(OH)2
BaBarium
Baⓘ BaryteBaSO4
WTungsten
Wⓘ ScheeliteCa(WO4)
AuGold
Auⓘ Native GoldAu
HgMercury
Hgⓘ CinnabarHgS
ThThorium
Thⓘ ThoriteTh(SiO4)

Localities in this Region

USA
USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America 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.

References

Bancroft, H. (1911), Reconnaissance of the ore deposits in northern Yuma County, Arizona, USGS Bull. 451: 78-86.
Jones, E.L., Jr. (1916b) Gold deposits near Quartzsite, Arizona, in Contributions to economic geology, 1915, Part I: Metals and nonmetals except fuels: U.S. Geological Survey Bulletin 620: 45-57.
Wilson, E.D., et al (1934)(revised 1967), Arizona Bureau of Mines Bull. 137: 135-136.
Wilson, Eldred D. (1961) Gold Placers and Placering in Arizona. University of Arizona Bulletin 168. Arizona Bureau of Minespp.25-29
Johnson, M.G. (1972) Placer gold deposits of Arizona. Bulletin 1355. US Geological Survey p.74-75. doi:10.3133/b1355
Keith, Stanton B. (1978) Index of Mining Properties in Yuma County, Arizona. University of Arizona Bulletin 192. Bureau of Geology and Mineral Technology 189pp.
(n.d.) ADMMR Mines Database, Arizona Geological Survey.
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