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Santa Maria District (Planet District; Swansea District; Bill Williams District), Buckskin Mts, La Paz Co., Arizona, USA

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Latitude & Longitude (WGS84): 34° 10' 48'' North , 113° 55' 12'' West
Latitude & Longitude (decimal): 34.18000,-113.92000
GeoHash:G#: 9qnfrwmbz
Locality type:Mining District
Köppen climate type:BWh : Hot deserts climate


Ref.: Higgins, Edwin (1910) Copper deposits of northern Yuma County, Arizona: Mining World [Chicago]: 33: 855-857, 903-904, 949-951.

Bancroft, H. (1911), Reconnaissance of the ore deposits in northern Yuma County, Arizona, USGS Bull. 451: 46-59.

Darton, N.H. (1925), A Resumé of Arizona Geology, University of Arizona, Arizona Bureau of Mines Bull. 119: 215-218.

Wilson, E.D., Cunningham, J.B., and Butler, G.M. (1934), Arizona Lode Gold Mines and Gold Mining (revised 1967), Arizona Bureau of Mines Bull. 137: 127.

Harrer, C.M. (1964), Reconnaissance of Iron Resources in Arizona, US Bureau of Mines Information Circular 8236: 125-126.

Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 172 (Table 4).

Arizona Bureau of Mines file data.

A Cu-Fe-Mn-Au-Ag (Ti-Ni-V-Cr-Co-Zn-Pb-Ga-Zr-St-Be) mining district located in extreme northern La Paz Co., in the central Buckskin Mountains, immediately South of the Bill Williams River, which forms the boundary with Mohave Co., North of Bouse.

This area is a rugged, dissected region that consists of granitic gneiss and schist, overlain by metamorphosed limestones, amphibolites and mica schists. Mineralization is varied: (1) Oxidized and sulfide copper ores in irregular, lensing, and often massive iron oxide replacement bodies in bedded, faulted, folded and tilted Paleozoic limestone, marble and dolomite, and in Precambrian schist, usually close to the faulted and brecciated contact of carbonate beds with Precambrian gneiss and schist; (2) Hematite and specularite, usually with irregular deposition of oxidized copper mineralization and some gold, in irregular, lensing, replacement bodies or along faults in Paleozoic carbonate rocks to brecciated contacts; (3) Manganese oxides, associated with iron oxides, in irregular bodies along shear zones in Paleozoic quartzite and limestone and along Paleozoic limestone beds; (4) Free gold in fractures in Paleozoic or Precambrian quartzite; (5) and, Small, spotty gold placers along washes.

Workings include several large scale open pit and shaft operations and many smaller mines and prospects worked since the 1860's to recent times. Total estimated and recorded mine production of base and precious metals would be some 1.4 million tons of ore containing about 23,000 tons of copper, 1,008 oz. Au, and 35,000 oz. Ag. About 400 long tons of manganese ore and concentrates (20-34% Mn) have been shipped. Placer operations have produced some 120 oz. of gold with 12 oz. silver.

Select Mineral List Type

Standard Detailed Strunz Dana 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.

Detailed Mineral List:

Azurite
Formula: Cu3(CO3)2(OH)2
Baryte
Formula: BaSO4
Bornite
Formula: Cu5FeS4
Brochantite
Formula: Cu4(SO4)(OH)6
Calcite
Formula: CaCO3
Localities:
Cerussite
Formula: PbCO3
Chalcanthite
Formula: CuSO4 · 5H2O
Chalcocite
Formula: Cu2S
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Localities:
'commodity:Copper'
Formula: Cu
Cuprite
Formula: Cu2O
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fluorite
Formula: CaF2
Localities:
Gold
Formula: Au
Gypsum
Formula: CaSO4 · 2H2O
Gypsum var: Selenite
Formula: CaSO4 · 2H2O
Hematite
Formula: Fe2O3
Localities: Reported from at least 11 localities in this region.
Hematite var: Specularite
Formula: Fe2O3
'Limonite'
Formula: (Fe,O,OH,H2O)
Malachite
Formula: Cu2(CO3)(OH)2
Manganite
Formula: Mn3+O(OH)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Natroalunite
Formula: NaAl3(SO4)2(OH)6
Opal
Formula: SiO2 · nH2O
Opal var: Opal-AN
Formula: SiO2 · nH2O
Pyrite
Formula: FeS2
Localities:
Quartz
Formula: SiO2
Localities: Reported from at least 7 localities in this region.
Quartz var: Jasper
'commodity:Silver'
Formula: Ag
Urea
Formula: CO(NH2)2
'Wad'

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Gold'1.AA.05Au
Group 2 - Sulphides and Sulfosalts
'Bornite'2.BA.15Cu5FeS4
'Chalcocite'2.BA.05Cu2S
'Chalcopyrite'2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Cuprite'4.AA.10Cu2O
'Hematite'4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Manganite4.FD.15Mn3+O(OH)
Opal4.DA.10SiO2 · nH2O
var: Opal-AN4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
var: Jasper4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Azurite'5.BA.05Cu3(CO3)2(OH)2
'Calcite'5.AB.05CaCO3
'Cerussite'5.AB.15PbCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Baryte'7.AD.35BaSO4
'Brochantite'7.BB.25Cu4(SO4)(OH)6
'Chalcanthite'7.CB.20CuSO4 · 5H2O
'Gypsum'7.CD.40CaSO4 · 2H2O
var: Selenite7.CD.40CaSO4 · 2H2O
Natroalunite7.BC.10NaAl3(SO4)2(OH)6
Group 9 - Silicates
'Chrysocolla'9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
'Epidote'9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Group 10 - Organic Compounds
Urea10.CA.35CO(NH2)2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
Limonite-(Fe,O,OH,H2O)
Wad-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Manganite6.1.3.1Mn3+O(OH)
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Chalcanthite29.6.7.1CuSO4 · 5H2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Brochantite30.1.3.1Cu4(SO4)(OH)6
Group 50 - ORGANIC COMPOUNDS
Miscellaneous
Urea50.4.6.1CO(NH2)2
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
Gypsum
var: Selenite
-CaSO4 · 2H2O
Hematite
var: Specularite
-Fe2O3
'Limonite'-(Fe,O,OH,H2O)
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2
Natroalunite-NaAl3(SO4)2(OH)6
Opal
var: Opal-AN
-SiO2 · nH2O
Quartz
var: Jasper
-SiO2
'Wad'-

List of minerals for each chemical element

HHydrogen
H AzuriteCu3(CO3)2(OH)2
H BrochantiteCu4(SO4)(OH)6
H ChalcanthiteCuSO4 · 5H2O
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H GypsumCaSO4 · 2H2O
H Limonite(Fe,O,OH,H2O)
H MalachiteCu2(CO3)(OH)2
H ManganiteMn3+O(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H NatroaluniteNaAl3(SO4)2(OH)6
H OpalSiO2 · nH2O
H Opal (var: Opal-AN)SiO2 · nH2O
H Gypsum (var: Selenite)CaSO4 · 2H2O
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H UreaCO(NH2)2
CCarbon
C AzuriteCu3(CO3)2(OH)2
C CalciteCaCO3
C CerussitePbCO3
C MalachiteCu2(CO3)(OH)2
C UreaCO(NH2)2
NNitrogen
N UreaCO(NH2)2
OOxygen
O AzuriteCu3(CO3)2(OH)2
O BaryteBaSO4
O BrochantiteCu4(SO4)(OH)6
O CalciteCaCO3
O CerussitePbCO3
O ChalcanthiteCuSO4 · 5H2O
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O CupriteCu2O
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O GypsumCaSO4 · 2H2O
O HematiteFe2O3
O Limonite(Fe,O,OH,H2O)
O MalachiteCu2(CO3)(OH)2
O ManganiteMn3+O(OH)
O MuscoviteKAl2(AlSi3O10)(OH)2
O NatroaluniteNaAl3(SO4)2(OH)6
O OpalSiO2 · nH2O
O Opal (var: Opal-AN)SiO2 · nH2O
O QuartzSiO2
O Gypsum (var: Selenite)CaSO4 · 2H2O
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O Hematite (var: Specularite)Fe2O3
O UreaCO(NH2)2
FFluorine
F FluoriteCaF2
NaSodium
Na NatroaluniteNaAl3(SO4)2(OH)6
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al NatroaluniteNaAl3(SO4)2(OH)6
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si OpalSiO2 · nH2O
Si Opal (var: Opal-AN)SiO2 · nH2O
Si QuartzSiO2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
SSulfur
S BaryteBaSO4
S BorniteCu5FeS4
S BrochantiteCu4(SO4)(OH)6
S ChalcanthiteCuSO4 · 5H2O
S ChalcociteCu2S
S ChalcopyriteCuFeS2
S GypsumCaSO4 · 2H2O
S NatroaluniteNaAl3(SO4)2(OH)6
S PyriteFeS2
S Gypsum (var: Selenite)CaSO4 · 2H2O
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca FluoriteCaF2
Ca GypsumCaSO4 · 2H2O
Ca Gypsum (var: Selenite)CaSO4 · 2H2O
MnManganese
Mn ManganiteMn3+O(OH)
FeIron
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe HematiteFe2O3
Fe Limonite(Fe,O,OH,H2O)
Fe PyriteFeS2
Fe Hematite (var: Specularite)Fe2O3
CuCopper
Cu AzuriteCu3(CO3)2(OH)2
Cu BorniteCu5FeS4
Cu BrochantiteCu4(SO4)(OH)6
Cu ChalcanthiteCuSO4 · 5H2O
Cu ChalcociteCu2S
Cu ChalcopyriteCuFeS2
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu CupriteCu2O
Cu MalachiteCu2(CO3)(OH)2
BaBarium
Ba BaryteBaSO4
AuGold
Au GoldAu
PbLead
Pb CerussitePbCO3

Localities in this Region
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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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