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Gila Bend Mountains, Maricopa County, Arizona, USAi
Regional Level Types
Gila Bend MountainsMountain Range
Maricopa CountyCounty
ArizonaState
USACountry

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PhotosMapsSearch
01117310017058490105747.jpg
Monohydrocalcite

Gila Bend Mountains, Maricopa County, Arizona, USA
00693810017058490342075.jpg
Lansfordite, etc.

Gila Bend Mountains, Maricopa County, Arizona, USA
01117310017058490105747.jpg
Monohydrocalcite

Gila Bend Mountains, Maricopa County, Arizona, USA
00693810017058490342075.jpg
Lansfordite, etc.

Gila Bend Mountains, Maricopa County, Arizona, USA
01117310017058490105747.jpg
Monohydrocalcite

Gila Bend Mountains, Maricopa County, Arizona, USA
00693810017058490342075.jpg
Lansfordite, etc.

Gila Bend Mountains, Maricopa County, Arizona, USA
Latitude & Longitude (WGS84):
33° 13' 20'' North , 113° 2' 13'' West
Latitude & Longitude (decimal):
33.22250,-113.03722
GeoHash:
G#: 9mzsgzbz1
GRN:
N23W67
Type:
Mountain Range
Köppen climate type:
BWh : Hot deserts climate
Mindat Locality ID:
188549
Long-form identifier:
mindat:1:2:188549:4
GUID (UUID V4):
e3c3ea18-31cb-42a5-8c4a-e14f93a0e86e


The Gila Bend Mountains are a mountain range with a maximum altitude of 1,581 feet (ca. 482 m) above sea level.

Miocene andesites and basaltic andesites from the eastern Gila Bend Mountains have high Mg# values (most 66-72), high concentrations of Ni and Cr, and olivine phenocrysts as Mg rich as Fo90. The high-Mg andesites erupted near the end of Miocene extension in the Gila Bend region. The high-Mg andesites are interpreted to reflect hydrous melting of harzburgite near the base of mantle lithosphere at unusually low pressure. The low pressure was the result of tectonic thinning of the lithosphere during extension, and the source of the volatiles was most likely contemporaneous subduction. Although the Nd isotopic composition of the Gila Bend lavas originated from Proterozoic mantle lithosphere, the Pb isotope ratios mainly reflect the influence of Mesozoic and Cenozoic subduction. (This record excerpt provided courtesy of AGI/GeoRef).

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

12 valid minerals.

Detailed Mineral List:

ⓘ Bornite
Formula: Cu5FeS4
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘ Cuprite
Formula: Cu2O
ⓘ Glushinskite
Formula: Mg(C2O4) · 2H2O
Description: Occurs as a weathering product of Weddellite in decaying suguaro cacti.
ⓘ Lansfordite
Formula: MgCO3 · 5H2O
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Monohydrocalcite
Formula: CaCO3 · H2O
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Nesquehonite
Formula: MgCO3 · 3H2O
Description: Occurs as a weathering product of Weddellite in decaying suguaro cacti.
ⓘ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
ⓘ Weddellite
Formula: Ca(C2O4) · (2.5-x)H2O
Description: (with nesquehonite)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘChalcopyrite2.CB.10aCuFeS2
Group 4 - Oxides and Hydroxides
ⓘCuprite4.AA.10Cu2O
Group 5 - Nitrates and Carbonates
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
ⓘNesquehonite5.CA.05MgCO3 · 3H2O
ⓘLansfordite5.CA.10MgCO3 · 5H2O
ⓘMonohydrocalcite5.CB.20CaCO3 · H2O
Group 9 - Silicates
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Group 10 - Organic Compounds
ⓘGlushinskite10.AB.10Mg(C2O4) · 2H2O
ⓘWeddellite10.AB.40Ca(C2O4) · (2.5-x)H2O
Unclassified
ⓘ'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
Hⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hⓘ GlushinskiteMg(C2O4) · 2H2O
Hⓘ LansforditeMgCO3 · 5H2O
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MonohydrocalciteCaCO3 · H2O
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ NesquehoniteMgCO3 · 3H2O
Hⓘ WeddelliteCa(C2O4) · (2.5-x)H2O
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
BBoron
Bⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
CCarbon
Cⓘ GlushinskiteMg(C2O4) · 2H2O
Cⓘ LansforditeMgCO3 · 5H2O
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ MonohydrocalciteCaCO3 · H2O
Cⓘ NesquehoniteMgCO3 · 3H2O
Cⓘ WeddelliteCa(C2O4) · (2.5-x)H2O
OOxygen
Oⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oⓘ CupriteCu2O
Oⓘ GlushinskiteMg(C2O4) · 2H2O
Oⓘ LansforditeMgCO3 · 5H2O
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MonohydrocalciteCaCO3 · H2O
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ NesquehoniteMgCO3 · 3H2O
Oⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oⓘ WeddelliteCa(C2O4) · (2.5-x)H2O
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
MgMagnesium
Mgⓘ GlushinskiteMg(C2O4) · 2H2O
Mgⓘ LansforditeMgCO3 · 5H2O
Mgⓘ NesquehoniteMgCO3 · 3H2O
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ⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ MonohydrocalciteCaCO3 · H2O
Caⓘ WeddelliteCa(C2O4) · (2.5-x)H2O
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuⓘ CupriteCu2O
Cuⓘ MalachiteCu2(CO3)(OH)2

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Gila_Bend_Mountains
Wikidata ID:Q5560644

Localities in this Region

USA

Other Regions, Features and Areas containing this locality

North America
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

Grant, Raymond W., Bideaux, R.A., Williams, S.A. (2006) Minerals Added to the Arizona List 1995-2005: 4, 5, 6.
Lopez, Robert, Cameron, K. L. (1997) High-Mg andesites from the Gila Bend Mountains, southwestern Arizona: Evidence for hydrous melting of lithosphere during Miocene extension. Geological Society of America Bulletin, 109 (7) 900-914 doi:10.1130/0016-7606(1997)109<0900:hmaftg>2.3.co;2
Garvie, L.A.J. (2003) Decay-induced biomineralization of the saguaro cactus (Carnegiea gigantean). American Mineralogist: 88: 1879-1888.
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