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Pacoima Canyon pegmatite locality (Pacoima Canyon Allanite pegmatite; Allanite locality), Pacoima Canyon, San Gabriel Mts, Los Angeles Co., California, USAi
Regional Level Types
Pacoima Canyon pegmatite locality (Pacoima Canyon Allanite pegmatite; Allanite locality)- not defined -
Pacoima CanyonCanyon
San Gabriel MtsMountain Range
Los Angeles Co.County
CaliforniaState
USACountry

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Key
Latitude & Longitude (WGS84):
34° 21' North , 118° 23' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
San Fernando24,931 (2018)9.1km
Shadow Hills13,000 (2018)10.2km
Sunland15,316 (2018)11.9km
Tujunga26,527 (2018)13.9km
Santa Clarita182,371 (2017)15.3km


A REE-U-Th occurrence located in the center W½W½ sec. 5, T3N, R14W, SBM.

Regions containing this locality

Pacific PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


10 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

Albite
Formula: Na(AlSi3O8)
Reference: Neuerberg, George Joseph (1954), Allanite pegmatite, San Gabriel Mountains, Los Angeles County, California: American Mineralogist: 39: 832; Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 31-33, 87; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 361.
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Reference: Neuerberg, George Joseph (1954), Allanite pegmatite, San Gabriel Mountains, Los Angeles County, California: American Mineralogist: 39: 832; Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 31-33, 87; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 361.
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Description: Occurs as abundant rough tabular crystals & grains to 2 or 3 inches (5.0-7.5 cm) in a pegmatite.
Reference: Neuerberg, George Joseph (1954), Allanite pegmatite, San Gabriel Mountains, Los Angeles County, California: American Mineralogist: 39: 833; Patchick, Paul F. (1955), A remarkable occurrence of allanite and zircon crystals from a southern California pegmatite: Rocks & Minerals: 30(5&6): 237; Frondel, J.W. (1964) Variation in some rare earths in allanite. American Mineralogist: 49: 1157; Dollase, W.A. (1971) Refinement of the crystal structures of epidote, allanite and hancockite. American Mineralogist: 56: 447.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Description: Occurs as small euhedral crystals.
Reference: Neuerberg, George Joseph (1954), Allanite pegmatite, San Gabriel Mountains, Los Angeles County, California: American Mineralogist: 39: 833; Patchick, Paul F. (1955), A remarkable occurrence of allanite and zircon crystals from a southern California pegmatite: Rocks & Minerals: 30(5&6): 237-246; Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 31-33, 87; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 316, 486.
Beryl
Formula: Be3Al2(Si6O18)
Colour: Greenish white
Description: Occurs as small pale crystals.
Reference: Neuerberg, George Joseph (1954), Allanite pegmatite, San Gabriel Mountains, Los Angeles County, California: American Mineralogist: 39: 832; Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 31-33, 87; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 446.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Description: Occurs as crystals 15 cm x 1.5 meters.
Reference: Rocks & Minerals (1955): 30(5-6): 237-246; Neuerberg, George Joseph (1954), Allanite pegmatite, San Gabriel Mountains, Los Angeles County, California: American Mineralogist: 39: 832; Hoda, S.N. and Hood (1972): 343; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 428.
'Feldspar Group'
Reference: Patchick, Paul F. (1955), A remarkable occurrence of allanite and zircon crystals from a southern California pegmatite: Rocks & Minerals: 30(5&6): 237-246.
'Feldspar Group var: Perthite'
Reference: Patchick, Paul F. (1955), A remarkable occurrence of allanite and zircon crystals from a southern California pegmatite: Rocks & Minerals: 30(5&6): 237-246.
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Van King
'Hornblende'
Habit: Up to one foot in length
Description: Rock forming. Occurs as euhedral crystals in metamorphic rocks.
Reference: Rocks & Minerals (1955): 30(5-6): 237-246; Neuerberg, George Joseph (1954), Allanite pegmatite, San Gabriel Mountains, Los Angeles County, California: American Mineralogist: 39: 832; Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 31-33, 87; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 401.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Patchick, Paul F. (1955), A remarkable occurrence of allanite and zircon crystals from a southern California pegmatite: Rocks & Minerals: 30(5&6): 237-246.
Microcline
Formula: K(AlSi3O8)
Reference: Van King
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Patchick, Paul F. (1955), A remarkable occurrence of allanite and zircon crystals from a southern California pegmatite: Rocks & Minerals: 30(5&6): 237-246.
Quartz
Formula: SiO2
Reference: Patchick, Paul F. (1955), A remarkable occurrence of allanite and zircon crystals from a southern California pegmatite: Rocks & Minerals: 30(5&6): 237-246.
Thorite
Formula: Th(SiO4)
Description: Occurs as well-formed crystals.
Reference: Neuerberg, George Joseph (1954), Allanite pegmatite, San Gabriel Mountains, Los Angeles County, California: American Mineralogist: 39: 834; Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 31-33, 87; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 462.
Zircon
Formula: Zr(SiO4)
Colour: Pinkish
Fluorescence: pale yellow, strong orange
Description: Abundant transparent crystals in pegmatite.
Reference: Neuerberg, George Joseph (1954), Allanite pegmatite, San Gabriel Mountains, Los Angeles County, California: American Mineralogist: 39: 833; Patchick, Paul F. (1955), A remarkable occurrence of allanite and zircon crystals from a southern California pegmatite: Rocks & Minerals: 30(5&6): 237; Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 31-33, 87.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var: Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Allanite-(Ce)9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Beryl9.CJ.05Be3Al2(Si6O18)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Thorite9.AD.30Th(SiO4)
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Feldspar Group'-
'var: Perthite'-
'Hornblende'-

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Thorite51.5.2.3Th(SiO4)
Zircon51.5.2.1Zr(SiO4)
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)
Allanite-(Ce)58.2.1a.1{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
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 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Albite
var: Oligoclase
-(Na,Ca)[Al(Si,Al)Si2O8]
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Feldspar Group'-
'var: Perthite'-
'Hornblende'-

List of minerals for each chemical element

HHydrogen
H ApatiteCa5(PO4)3(Cl/F/OH)
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
BeBeryllium
Be BerylBe3Al2(Si6O18)
OOxygen
O ApatiteCa5(PO4)3(Cl/F/OH)
O ZirconZr(SiO4)
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O QuartzSiO2
O MagnetiteFe2+Fe23+O4
O MuscoviteKAl2(AlSi3O10)(OH)2
O Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
O BerylBe3Al2(Si6O18)
O ThoriteTh(SiO4)
O Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
O FluorapatiteCa5(PO4)3F
O MicroclineK(AlSi3O8)
O AlbiteNa(AlSi3O8)
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
F FluorapatiteCa5(PO4)3F
NaSodium
Na Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
AlAluminium
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Al BerylBe3Al2(Si6O18)
Al Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Al MicroclineK(AlSi3O8)
Al AlbiteNa(AlSi3O8)
SiSilicon
Si ZirconZr(SiO4)
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si QuartzSiO2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Si BerylBe3Al2(Si6O18)
Si ThoriteTh(SiO4)
Si Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Si MicroclineK(AlSi3O8)
Si AlbiteNa(AlSi3O8)
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
P FluorapatiteCa5(PO4)3F
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K MuscoviteKAl2(AlSi3O10)(OH)2
K MicroclineK(AlSi3O8)
CaCalcium
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Ca Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Ca FluorapatiteCa5(PO4)3F
FeIron
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe MagnetiteFe2+Fe23+O4
Fe Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
ZrZirconium
Zr ZirconZr(SiO4)
CeCerium
Ce Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
ThThorium
Th ThoriteTh(SiO4)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Neuerberg, George Joseph (1954), Allanite pegmatite, San Gabriel Mountains, Los Angeles County, California: American Mineralogist: 39: 832, 833, 834.
Patchick, Paul F. (1955), A remarkable occurrence of allanite and zircon crystals from a southern California pegmatite: Rocks & Minerals: 30(5&6): 237-246.
Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 31-33, 87.
Frondel, J.W. (1964) Variation in some rare earths in allanite. American Mineralogist: 49: 1159-1177.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 366.
Dollase, W.A. (1971) Refinement of the crystal structures of epidote, allanite and hancockite. American Mineralogist: 56: 447-464.
Hoda, S.N. and Hood (1972): 343.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 316, 361, 401, 428, 446, 461, 462, 486.


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