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Morning Star Mine (Morning Star prospects; Morning Star pegmatites), San Domingo Wash, White Picacho Mining District, Maricopa County, Arizona, USAi
Regional Level Types
Morning Star Mine (Morning Star prospects; Morning Star pegmatites)Mine
San Domingo WashWash
White Picacho Mining DistrictMining District
Maricopa CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
33° 57' 8'' North , 112° 34' 22'' West
Latitude & Longitude (decimal):
33.95222,-112.57278
GeoHash:
G#: 9qpcnkg40
GRN:
N23W67
Type:
Mine
Köppen climate type:
BSh : Hot semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Morristown227 (2017)11.6km
Wickenburg6,806 (2017)14.6km
Wittmann763 (2011)20.0km
Yarnell649 (2011)34.0km
Congress1,975 (2014)34.7km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Wickenburg Gem and Mineral SocietyWickenburg, Arizona15km
Daisy Mountain Rock & Mineral ClubAnthem, Arizona40km
Black Canyon City Rock ClubBlack Canyon City, Arizona41km
Mindat Locality ID:
52207
Long-form identifier:
mindat:1:2:52207:3
GUID (UUID V4):
3a88a792-5a85-4111-a0e9-af098ed666b6


A group of claims and mine located in the W ½ sec. 16, T.7N., R.3W., NW side of San Domingo Wash.

The country rock in this general area is thinly foliated to slabby amphibole schist, quartz-biotite schist, and quartz-biotite-muscovite schist, most of which is medium dark gray in color. These rock types are intimately interlayered, and locally contain lenses of amphibolite and epidosite. Most appear to be of volcanic origin, and several thick, tabular masses of agglomerate and breccia are clearly recognizable. Both foliation and layering strike WNW to West, and dip 45º to 55º North. The general structure is rather uniform, but the rocks are much crumpled and contorted in detail. Here and there the schist is cut by quartz veins and by dikes of fine-grained, very dark gray amphibolite.

Near the pegmatite contacts the schist has been impregnated with abundant potash feldspar and flakes of pale green muscovite.

The Morning Star pegmatites are irregular, steeply-dipping dikes that are exposed on a prominent ridge.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

11 valid minerals.

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
Colour: White
ⓘ Albite var. Cleavelandite
Formula: Na(AlSi3O8)
ⓘ Amblygonite
Formula: LiAl(PO4)F
Colour: White, very pale greenish buff, pale greenish to bluish
Description: Scattered through the quartz as crudely formed crystals & irregular masses, some to 5 feet (1.5 meters) diameter; occurs in a smaller cut on the NE end of the dike.
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Habit: Anhedral
Colour: Dark bluish-gray
Description: Scattered sparsely throughout the spodumene-bearing zone.
ⓘ Beryl
Formula: Be3Al2(Si6O18)
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Description: An alteration product of hornblende.
ⓘ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'
Description: Scant.
ⓘ 'Columbite-Tantalite'
Habit: Thin tablets, 1/8 to 1½ inches maximum dimension
ⓘ Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Habit: Rough, prismatic (larger), ½ to 5 inches long; sharply-faced (smaller).
Colour: Green, pink
Description: Local pod-like concentrations of crystals; smaller crystals as inclusions in lepidolite.
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
Description: Pod-like aggregates of coarse material.
ⓘ 'K Feldspar'
Habit: Very large; 3 to 7 feet (1 to 2 meters) long
Colour: White, bluish-gray
Description: Perthitic.
ⓘ 'Lepidolite'
Habit: Coarse books to 5 inches (12.5 cm) diameter
Colour: Pale pinkish to gray, moderately deep lilac
Description: Occurs in both the spodumene- & amblygonite-bearing units, associated with coarse-grained cleavelandite.
ⓘ Lithiophilite
Formula: LiMn2+PO4
References:
Am Min 67:97-113
ⓘ Montebrasite
Formula: LiAl(PO4)(OH)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Habit: Stubby, 1/8 inch to 2 inches diameter
Colour: Greenish, yellowish-green
Description: Stubby crystals 1/8 to ½ inch diameter as fringes around most quartz pods.
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Quartz
Formula: SiO2
Description: Very coarse-grained anhedral masses in the core zone. Large crystals sometimes veined with aggregates of lepidolite so fine-grained that it renders a waxy appearance.
ⓘ Quartz var. Chalcedony
Formula: SiO2
Description: Cementing material in fractured & brecciated masses of coarse quartz & feldspar, central portion of the pegmatite.
ⓘ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Description: In the outer intermediate zone.
ⓘ Spodumene
Formula: LiAlSi2O6
Habit: Rough, prismatic, less than ½ inch (1.25 cm) to 6 inches (15 cm) thick & 1½ to 24 inches (3¾ to 60 cm) long
Colour: Buff to bluish-gray
Description: Occurs in the main cut (intermediate zones). Finer grained in the outer intermediate zone.
ⓘ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
Habit: Small, prismatic crystals
Colour: Very dark green to black.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘLithiophilite8.AB.10LiMn2+PO4
ⓘMontebrasite8.BB.05LiAl(PO4)(OH)
ⓘAmblygonite8.BB.05LiAl(PO4)F
Group 9 - Silicates
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘElbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘSpodumene9.DA.30LiAlSi2O6
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘAlbite
var. Cleavelandite		9.FA.35Na(AlSi3O8)
ⓘ9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Lepidolite'-
ⓘ'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Columbite-(Fe)-Columbite-(Mn) Series'-
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'K Feldspar'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Columbite-Tantalite'-
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
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ⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ MontebrasiteLiAl(PO4)(OH)
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
LiLithium
Liⓘ AmblygoniteLiAl(PO4)F
Liⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Liⓘ LithiophiliteLiMn2+PO4
Liⓘ MontebrasiteLiAl(PO4)(OH)
Liⓘ SpodumeneLiAlSi2O6
BeBeryllium
Beⓘ BerylBe3Al2(Si6O18)
BBoron
Bⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AmblygoniteLiAl(PO4)F
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ LithiophiliteLiMn2+PO4
Oⓘ MontebrasiteLiAl(PO4)(OH)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ SpodumeneLiAlSi2O6
Oⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oⓘ Albite var. CleavelanditeNa(AlSi3O8)
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ AmblygoniteLiAl(PO4)F
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ Albite var. CleavelanditeNa(AlSi3O8)
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AmblygoniteLiAl(PO4)F
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ MontebrasiteLiAl(PO4)(OH)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ SpodumeneLiAlSi2O6
Alⓘ Albite var. CleavelanditeNa(AlSi3O8)
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ SpodumeneLiAlSi2O6
Siⓘ Albite var. CleavelanditeNa(AlSi3O8)
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Garnet GroupX3Z2(SiO4)3
PPhosphorus
Pⓘ AmblygoniteLiAl(PO4)F
Pⓘ LithiophiliteLiMn2+PO4
Pⓘ MontebrasiteLiAl(PO4)(OH)
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MnManganese
Mnⓘ LithiophiliteLiMn2+PO4
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
CuCopper
Cuⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1

Localities in this Region

USA

Other Regions, Features and Areas containing this locality

North America 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

USGS Red Picacho map.
Arizona Department of Mineral Resources (ADMR) Industrial Minerals Report: 36.
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.
Jahns, R.H. (1952), Pegmatite deposits of the White Picacho District, Maricopa and Yavapai Counties, Arizona, Arizona Bureau of Mines Bulletin 162: 78-83.
Jahns, R.H. (1953), The genesis of pegmatites, Am.Min.: 38: 563-598; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, U.S. Bureau of Mines Information Circular 8298: 20 (Table A-1).
Phillips, K.A. (1987), Arizona Industrial Minerals Arizona Department of Mines and Mineral Resources Mineral Report 4.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 379.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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