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Old Yuma Mine, Tucson Mountain District Saguaro National Park, Amole Mining District, Tucson Mountains, Pima County, Arizona, USAi
Regional Level Types
Old Yuma MineMine (Inactive)
Tucson Mountain District Saguaro National ParkNational Monument
Amole Mining DistrictMining District
Tucson MountainsMountain Range
Pima CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
32° 18' 53'' North , 111° 7' 18'' West
Latitude & Longitude (decimal):
Type:
Mine (Inactive) - last checked 2019
Nearest Settlements:
PlacePopulationDistance
Flowing Wells16,419 (2011)10.8km
Casas Adobes66,795 (2011)11.9km
Picture Rocks9,563 (2011)12.2km
Tucson Estates12,192 (2011)14.4km
Tortolita4,274 (2006)14.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Old Pueblo Lapidary ClubTucson, Arizona21km
Tucson Gem and Mineral SocietyTucson, Arizona21km
Mindat Locality ID:
3372
Long-form identifier:
mindat:1:2:3372:8
GUID (UUID V4):
0
Other/historical names associated with this locality:
Yuma Mine


A former small surface and underground Pb-Cu-Zn-Mo-Ag-Au (V) mine located in the center of sec. 9, T13S, R12E, G&SRM, 1 mile ENE of the Tucson Mountain Park. Owned/operated, in whole or in part, by Col. Randolph; the International Ore Separation Company; Reilly Mines Company; Consolidated Mining and Milling (1986); and the Tucson Ore Milling Company.

Mineralization is lens-shaped ore masses with partly oxidized base metal sulfides with spotty wulfenite and vanadinite, and quartz and calcite gangue, in a steeply-dipping, lensing, and faulted orebody along a fracture zone cutting Cretaceous andesite and associated with a Laramide porphyritic intrusive. The ore zone is 5 meters wide, strikes N60E and dips 40S. Ore concentration was supergene enrichment. Alteration includes argillitic. Associated rocks include Late Cretaceous quartz monzonite. Local rocks include Early Tertiary to Late Cretaceous volcanic rocks.

Workings include surface and underground openings comprised of a shaft and underground workings to at least the 300 foot (95 meter) level. A later open cut exposed underground stopes; numerous shafts, pits. The development of underground workings and heap leach facility occurred in 1984-1986.

Production occurred sporadically from 1916 through 1947, with a total of some 5,700 tons of ore averaging about 4% Pb, 1% Cu, 0.6% Zn, 0.3% Mo, 1 ounce Ag/ton and 0.1 ounce Au/ton ($3/ton Au = period values). Average mine ore contained 2-3% wulfenite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


18 valid minerals.

Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Anglesite
Formula: PbSO4
Description: Supergene mineral.
Calcite
Formula: CaCO3
Cerussite
Formula: PbCO3
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Descloizite
Formula: PbZn(VO4)(OH)
Habit: Rare crystals to 5mm long
Colour: Brownish-orange
Fornacite
Formula: Pb2Cu(CrO4)(AsO4)(OH)
Description: Occurs on hematite and quartz.
Galena
Formula: PbS
Hematite
Formula: Fe2O3
Malachite
Formula: Cu2(CO3)(OH)2
Minium
Formula: Pb3O4
Mottramite
Formula: PbCu(VO4)(OH)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Opal
Formula: SiO2 · nH2O
Opal var. Opal-AN
Formula: SiO2 · nH2O
Plattnerite
Formula: PbO2
Habit: Tiny
Description: Crystals on vanadinite.
Quartz
Formula: SiO2
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Description: Sparse with galena.
Vanadinite
Formula: Pb5(VO4)3Cl
Description: Exceptionally beautiful specimens and as pseudomorphs after wulfenite.
References:
Willemite
Formula: Zn2SiO4
Wulfenite
Formula: Pb(MoO4)
Habit: Tabular; crystal groups
Colour: Deep orange-red
References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
Minium4.BD.05Pb3O4
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Opal
var. Opal-AN
4.DA.10SiO2 · nH2O
4.DA.10SiO2 · nH2O
Plattnerite4.DB.05PbO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Fornacite7.FC.10Pb2Cu(CrO4)(AsO4)(OH)
Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
Descloizite8.BH.40PbZn(VO4)(OH)
Mottramite8.BH.40PbCu(VO4)(OH)
Vanadinite8.BN.05Pb5(VO4)3Cl
Group 9 - Silicates
Willemite9.AA.05Zn2SiO4
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1

List of minerals for each chemical element

HHydrogen
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
H DescloizitePbZn(VO4)(OH)
H FornacitePb2Cu(CrO4)(AsO4)(OH)
H Opal var. Opal-ANSiO2 · nH2O
H MalachiteCu2(CO3)(OH)2
H MottramitePbCu(VO4)(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H OpalSiO2 · nH2O
H Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
C CalciteCaCO3
C CerussitePbCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O AnglesitePbSO4
O CalciteCaCO3
O CerussitePbCO3
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
O DescloizitePbZn(VO4)(OH)
O FornacitePb2Cu(CrO4)(AsO4)(OH)
O HematiteFe2O3
O Opal var. Opal-ANSiO2 · nH2O
O MalachiteCu2(CO3)(OH)2
O MiniumPb3O4
O MottramitePbCu(VO4)(OH)
O MuscoviteKAl2(AlSi3O10)(OH)2
O OpalSiO2 · nH2O
O PlattneritePbO2
O QuartzSiO2
O VanadinitePb5(VO4)3Cl
O WillemiteZn2SiO4
O WulfenitePb(MoO4)
O Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Si Opal var. Opal-ANSiO2 · nH2O
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si OpalSiO2 · nH2O
Si QuartzSiO2
Si WillemiteZn2SiO4
Si Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
S AnglesitePbSO4
S GalenaPbS
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ClChlorine
Cl VanadinitePb5(VO4)3Cl
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
VVanadium
V DescloizitePbZn(VO4)(OH)
V MottramitePbCu(VO4)(OH)
V VanadinitePb5(VO4)3Cl
CrChromium
Cr FornacitePb2Cu(CrO4)(AsO4)(OH)
FeIron
Fe HematiteFe2O3
CuCopper
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cu FornacitePb2Cu(CrO4)(AsO4)(OH)
Cu MalachiteCu2(CO3)(OH)2
Cu MottramitePbCu(VO4)(OH)
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Zn DescloizitePbZn(VO4)(OH)
Zn WillemiteZn2SiO4
AsArsenic
As FornacitePb2Cu(CrO4)(AsO4)(OH)
MoMolybdenum
Mo WulfenitePb(MoO4)
SbAntimony
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
PbLead
Pb AnglesitePbSO4
Pb CerussitePbCO3
Pb DescloizitePbZn(VO4)(OH)
Pb FornacitePb2Cu(CrO4)(AsO4)(OH)
Pb GalenaPbS
Pb MiniumPb3O4
Pb MottramitePbCu(VO4)(OH)
Pb PlattneritePbO2
Pb VanadinitePb5(VO4)3Cl
Pb WulfenitePb(MoO4)

Other Databases

Link to USGS MRDS:10103758

Other Regions, Features and Areas containing this locality


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