Sec 36 T18N R13E
Structure: Pegmatite Dikes

Tectonics: Sangre De Cristo Uplift

Deposit: The pegmatite is a pod-like body that trends north-northeast in conformity to the strike of the foliation of the amphibole schist country rock. The pegmatite dips slightly west-northwest in contrast to the steep east-southeast dip of the country rock. A zonal structure is evident with an inner core of massive quartz and three outer zones. The rare-earth and uranium mineralization was found on the west and north sides of the pit along the upper contact of a mica-rich "streak". Minerals present include smoky quartz, columbite, hatchettolite, uraninite, samarskite, euxenite (or fergusonite, bismutite, and gummite. Gangue minerals include microcline, albite-oligoclase and quartz. Jahns (1946) provides an excellent description of the deposit.

Geology: The precambrian in this area has no formal name.

Ore(s): Pegmatite Dikes

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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

ⓘ Beryllium

ⓘ Mica

ⓘ Tantalum

Mineral List

9 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

ⓘ 'Pegmatite'

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

ⓘ Bismutite

Formula: (BiO)₂CO₃

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.

ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Euxenite-(Y) ?

Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆

Description: May be Fergusonite.

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.

ⓘ 'Fergusonite'

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

ⓘ 'Gummite'

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.

ⓘ 'Mica Group'

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ 'Monazite'

Formula: REE(PO₄)

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

ⓘ 'Pyrochlore Group' ?

Formula: A₂Nb₂(O,OH)₆Z

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.

ⓘ 'Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)' ?

Formula: (Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.

ⓘ Quartz

Formula: SiO₂

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Samarskite-(Y)

Formula: YFe³⁺Nb₂O₈

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

ⓘ Spessartine

Formula: Mn²⁺₃Al₂(SiO₄)₃

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

ⓘ 'Tourmaline'

Formula: AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

ⓘ Uraninite

Formula: UO₂

References:

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM.

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	'Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)' ?	4.00.	(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)
ⓘ	'' ?	4.00.	A₂Nb₂(O,OH)₆Z
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Samarskite-(Y)	4.DB.25	YFe³⁺Nb₂O₈
ⓘ	Euxenite-(Y) ?	4.DG.05	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
ⓘ	Uraninite	4.DL.05	UO₂
Group 5 - Nitrates and Carbonates
ⓘ	Bismutite	5.BE.25	(BiO)₂CO₃
Group 9 - Silicates
ⓘ	Spessartine	9.AD.25	Mn²⁺₃Al₂(SiO₄)₃
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Tourmaline'	-	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
ⓘ	'Monazite'	-	REE(PO₄)
ⓘ	'Gummite'	-
ⓘ	'Mica Group'	-
ⓘ	'Columbite-(Fe)-Columbite-(Mn) Series'	-
ⓘ	'Fergusonite'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Pyrochlore Group	A₂Nb₂(O,OH)₆Z
H	ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)	(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)
B	Boron
B	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
C	Carbon
C	ⓘ Bismutite	(BiO)₂CO₃
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Bismutite	(BiO)₂CO₃
O	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Monazite	REE(PO₄)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Pyrochlore Group	A₂Nb₂(O,OH)₆Z
O	ⓘ Quartz	SiO₂
O	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
O	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
O	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Uraninite	UO₂
O	ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)	(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)
F	Fluorine
F	ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)	(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
P	Phosphorus
P	ⓘ Monazite	REE(PO₄)
K	Potassium
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ca	ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)	(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)
Ti	Titanium
Ti	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ti	ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)	(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)
Mn	Manganese
Mn	ⓘ Spessartine	Mn₃²⁺Al₂(SiO₄)₃
Fe	Iron
Fe	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
Y	Yttrium
Y	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Y	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
Nb	Niobium
Nb	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Nb	ⓘ Pyrochlore Group	A₂Nb₂(O,OH)₆Z
Nb	ⓘ Samarskite-(Y)	YFe³⁺Nb₂O₈
Nb	ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)	(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)
Ce	Cerium
Ce	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ce	ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)	(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)
Ta	Tantalum
Ta	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
Ta	ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)	(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)
Bi	Bismuth
Bi	ⓘ Bismutite	(BiO)₂CO₃
Th	Thorium
Th	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
U	Uranium
U	ⓘ Euxenite-(Y)	(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)₂O₆
U	ⓘ Uraninite	UO₂
U	ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)	(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)

Other Databases

Link to USGS MRDS:	10009746

Other Regions, Features and Areas containing this locality

North America

Rocky MountainsMountain Range

North America PlateTectonic Plate

Great Plains DomainDomain

USA

Central Colorado–Taos TroughBasin
Sangre de Christo Mountains

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

Jahns, R. H. (1946) Mica Deposits of the Petaca District, Rio Arriba County, New Mexico. Bulletin 25. Mineral Resources Survey of New Mexico

JAHNS, R.H., (1946), NMBMMR BULL 25, P. 281-283

REDMON, D.E., (1961), USBM IC 8013, P. 73-74

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