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Little San Domingo Mine, Little San Domingo Wash area, White Picacho District, Maricopa Co., Arizona, USAi
Regional Level Types
Little San Domingo MineMine
Little San Domingo Wash areaArea
White Picacho DistrictMining District
Maricopa Co.County
ArizonaState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84): 33° 56' 35'' North , 112° 33' 40'' West
Latitude & Longitude (decimal): 33.94333,-112.56111
GeoHash:G#: 9qpcne5qp
Locality type:Mine
Köppen climate type:BSh : Hot semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Morristown227 (2017)11.2km
Wickenburg6,806 (2017)15.8km
Wittmann763 (2011)18.8km
Yarnell649 (2011)35.4km
Congress1,975 (2014)36.1km


A former surface and underground W-Au-Cu-Mo occurrence/mine.

Mineralization is a contact metamorphic deposit. Ore control was a garnet-epidote skarn zone. Alteration is silicification.

NOTE: The coordinates for this mine and the White Cloud Mine are very close. Field observations at the White Cloud Mine revealed the existence of multiple shafts and workings over an area of about 1000 feet. The Little San Domingo Mine may be one of those workings.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


11 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: MRDS file #10048180.
Calcite
Formula: CaCO3
Reference: MRDS file #10048180.
Chalcopyrite
Formula: CuFeS2
Reference: MRDS file #10048180.
'Chlorite Group'
Reference: MRDS file #10048180.
Diopside
Formula: CaMgSi2O6
Reference: MRDS file #10048180.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: MRDS file #10048180.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: MRDS file #10048180.
Gold
Formula: Au
Reference: MRDS file #10048180.
Hematite
Formula: Fe2O3
Reference: MRDS file #10048180.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: MRDS file #10048180.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: MRDS file #10048180.
Powellite
Formula: Ca(MoO4)
Reference: MRDS file #10048180.
Pyrite
Formula: FeS2
Reference: MRDS file #10048180.
Scheelite
Formula: Ca(WO4)
Reference: MRDS file #10048180.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Powellite7.GA.05Ca(MoO4)
Scheelite7.GA.05Ca(WO4)
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Diopside9.DA.15CaMgSi2O6
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3
'Limonite'-(Fe,O,OH,H2O)

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 = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Powellite48.1.2.2Ca(MoO4)
Scheelite48.1.2.1Ca(WO4)
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 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
H MalachiteCu2(CO3)(OH)2
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
CCarbon
C MalachiteCu2(CO3)(OH)2
C CalciteCaCO3
OOxygen
O ScheeliteCa(WO4)
O Limonite(Fe,O,OH,H2O)
O HematiteFe2O3
O MalachiteCu2(CO3)(OH)2
O PowelliteCa(MoO4)
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O DiopsideCaMgSi2O6
O CalciteCaCO3
O Garnet GroupX3Z2(SiO4)3
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg DiopsideCaMgSi2O6
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si DiopsideCaMgSi2O6
Si Garnet GroupX3Z2(SiO4)3
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SSulfur
S ChalcopyriteCuFeS2
S PyriteFeS2
CaCalcium
Ca ScheeliteCa(WO4)
Ca PowelliteCa(MoO4)
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca DiopsideCaMgSi2O6
Ca CalciteCaCO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
FeIron
Fe Limonite(Fe,O,OH,H2O)
Fe HematiteFe2O3
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
CuCopper
Cu MalachiteCu2(CO3)(OH)2
Cu ChalcopyriteCuFeS2
MoMolybdenum
Mo PowelliteCa(MoO4)
WTungsten
W ScheeliteCa(WO4)
AuGold
Au GoldAu

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Quaternary - Miocene
0 - 23.03 Ma



ID: 3185380
Cenozoic sedimentary rocks

Age: Cenozoic (0 - 23.03 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Statherian
1600 - 1800 Ma



ID: 2743350
Early Proterozoic metavolcanic rocks

Age: Statherian (1600 - 1800 Ma)

Stratigraphic Name: Pinal Schist; Yavapai Supergroup; Tonto Basin Supergroup; Vishnu Schist

Description: Weakly to strongly metamorphosed volcanic rocks. Protoliths include basalt, andesite, dacite, and rhyolite deposited as lava or tuff, related sedimentary rock, and shallow intrusive rock. These rocks, widely exposed in several belts in central Arizona, include metavolcanic rocks in the Yavapai and Tonto Basin supergroups. (1650 to 1800 Ma)

Comments: Original map source: Arizona Geological Survey, DI-8 Geologic Map of Arizona, Digital Spatial data for the Geologic Map of Arizona, v. 3.0, edited by S.M. Richard and S.M. Kneale, 2002, 10 p., 2 DOS HD disks. Arc/INFO export file (.e00) format, scale 1:1,000,000.

Lithology: Major:{metavolcanic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Bell (1947) USGS Open file report 384.
Jahns, R.H. (1952), Pegmatite Deposits of the White Picacho District, Maricopa and Yavapai Counties, Arizona, Arizona Bureau of Mines Bull. 162.
Dale, V.B. (1959) Tungsten deposits of Yuma, Maricopa, Pinal, and Graham Counties, Arizona, U.S. Bureau of Mines Report of Investigation 5516.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10048180.
Yale Peabody GNIS database (NOTE: this database is derived from USGS 1:24,000 topographic map data).
Arizona Bureau of Mines file data.


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