Wasson, John T., Choi, Byeon-Gak (2003) Main-group pallasites. Geochimica et Cosmochimica Acta, 67 (16) 3079-3096 doi:10.1016/s0016-7037(03)00306-5

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

Localities:

Acme area, Chaves County, New Mexico, USA
Chaves County, New Mexico, USA
Roswell area, Pecos River Valley, Chaves County, New Mexico, USA
Walnut Draw Gypsum Deposit, Chaves County, New Mexico, USA
Lake Arthur, Chaves County, New Mexico, USA

ⓘ Halite

Formula: NaCl

Locality: White well no. 3-1, Chaves County, New Mexico, USA

References:

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

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

Localities:

Roswell area, Pecos River Valley, Chaves County, New Mexico, USA
Chaves County, New Mexico, USA

ⓘ Kieserite

Formula: MgSO₄ · H₂O

Description: Found in at least one well.

References:

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

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

Localities:

Acme area, Chaves County, New Mexico, USA
Chaves County, New Mexico, USA
Roswell area, Pecos River Valley, Chaves County, New Mexico, USA

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Localities:

Acme area, Chaves County, New Mexico, USA
Chaves County, New Mexico, USA

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Localities:

Acme area, Chaves County, New Mexico, USA
Chaves County, New Mexico, USA

ⓘ Native Gold

Formula: Au

Locality: Rio Hondo, Chaves County, New Mexico, USA

References:

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

ⓘ Native Iron

Formula: Fe

Locality: Dora (pallasite) meteorite, Chaves County, New Mexico, USA

References:

Wasson, John T., Choi, Byeon-Gak (2003) Main-group pallasites. Geochimica et Cosmochimica Acta, 67 (16) 3079-3096 doi:10.1016/s0016-7037(03)00306-5

ⓘ Native Iron var. Kamacite

Formula: (Fe,Ni)

Locality: Dora (pallasite) meteorite, Chaves County, New Mexico, USA

References:

Wasson, John T., Choi, Byeon-Gak (2003) Main-group pallasites. Geochimica et Cosmochimica Acta, 67 (16) 3079-3096 doi:10.1016/s0016-7037(03)00306-5

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

Localities:

Acme area, Chaves County, New Mexico, USA
Chaves County, New Mexico, USA
Roswell area, Pecos River Valley, Chaves County, New Mexico, USA
Dunlap area, Chaves County, New Mexico, USA

ⓘ Polyhalite

Formula: K₂Ca₂Mg(SO₄)₄ · 2H₂O

Description: Found in the subsurface.

References:

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

ⓘ Pyrite

Formula: FeS₂

Localities:

Bosque Draw, Chaves County, New Mexico, USA
Roswell area, Pecos River Valley, Chaves County, New Mexico, USA
Chaves County, New Mexico, USA

Habit: cubic

Description: Intergrown cubic pyrite crystals to 2.5 cm encrusting fine-grained, massive pyrite cores, some elongated to at least 15 cm.

ⓘ Quartz

Formula: SiO₂

Localities:

Acme area, Chaves County, New Mexico, USA
Lake Arthur, Chaves County, New Mexico, USA
Pecos River Valley, Chaves County, New Mexico, USA
Chaves County, New Mexico, USA
Roswell area, Pecos River Valley, Chaves County, New Mexico, USA

ⓘ Quartz var. Jacinto de Compostela

Formula: SiO₂

Locality: Acme area, Chaves County, New Mexico, USA

References:

Tarr, W. A. (1929) Doubly terminated quartz crystals occurring in gypsum. American Mineralogist, 14 (1) 19-25

ⓘ Quartz var. Pecos Diamonds

Formula: SiO₂

Localities:

Pecos River Valley, Chaves County, New Mexico, USA
Roswell area, Pecos River Valley, Chaves County, New Mexico, USA

ⓘ Taenite

Formula: (Fe,Ni)

Locality: Dora (pallasite) meteorite, Chaves County, New Mexico, USA

References:

Wasson, John T., Choi, Byeon-Gak (2003) Main-group pallasites. Geochimica et Cosmochimica Acta, 67 (16) 3079-3096 doi:10.1016/s0016-7037(03)00306-5

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Gold	1.AA.05	Au
ⓘ	Native Iron	1.AE.05	Fe
ⓘ	var. Kamacite	1.AE.05	(Fe,Ni)
ⓘ	Taenite	1.AE.10	(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 3 - Halides
ⓘ	Halite	3.AA.20	NaCl
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	var. Jacinto de Compostela	4.DA.05	SiO₂
ⓘ	var. Pecos Diamonds	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
ⓘ	var. Teruelite	5.AB.10	CaMg(CO₃)₂
ⓘ	Aragonite	5.AB.15	CaCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Anhydrite	7.AD.30	CaSO₄
ⓘ	Kieserite	7.CB.05	MgSO₄ · H₂O
ⓘ	Polyhalite	7.CC.65	K₂Ca₂Mg(SO₄)₄ · 2H₂O
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
Group 9 - Silicates
ⓘ	Forsterite	9.AC.05	Mg₂SiO₄
ⓘ	Augite	9.DA.15	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
Unclassified
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Kieserite	MgSO₄ · H₂O
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
C	Carbon
C	ⓘ Aragonite	CaCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Dolomite var. Teruelite	CaMg(CO₃)₂
O	Oxygen
O	ⓘ Anhydrite	CaSO₄
O	ⓘ Aragonite	CaCO₃
O	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Forsterite	Mg₂SiO₄
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Kieserite	MgSO₄ · H₂O
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
O	ⓘ Quartz	SiO₂
O	ⓘ Fayalite-Forsterite Series
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Dolomite var. Teruelite	CaMg(CO₃)₂
O	ⓘ Quartz var. Jacinto de Compostela	SiO₂
O	ⓘ Quartz var. Pecos Diamonds	SiO₂
Na	Sodium
Na	ⓘ Halite	NaCl
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Forsterite	Mg₂SiO₄
Mg	ⓘ Kieserite	MgSO₄ · H₂O
Mg	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
Mg	ⓘ Fayalite-Forsterite Series
Mg	ⓘ Dolomite var. Teruelite	CaMg(CO₃)₂
Al	Aluminium
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Si	ⓘ Forsterite	Mg₂SiO₄
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Fayalite-Forsterite Series
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Quartz var. Jacinto de Compostela	SiO₂
Si	ⓘ Quartz var. Pecos Diamonds	SiO₂
S	Sulfur
S	ⓘ Anhydrite	CaSO₄
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Kieserite	MgSO₄ · H₂O
S	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
S	ⓘ Pyrite	FeS₂
Cl	Chlorine
Cl	ⓘ Halite	NaCl
K	Potassium
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Anhydrite	CaSO₄
Ca	ⓘ Aragonite	CaCO₃
Ca	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Polyhalite	K₂Ca₂Mg(SO₄)₄ · 2H₂O
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ca	ⓘ Dolomite var. Teruelite	CaMg(CO₃)₂
Fe	Iron
Fe	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Fe	ⓘ Native Iron	Fe
Fe	ⓘ Native Iron var. Kamacite	(Fe,Ni)
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Taenite	(Fe,Ni)
Fe	ⓘ Fayalite-Forsterite Series
Ni	Nickel
Ni	ⓘ Native Iron var. Kamacite	(Fe,Ni)
Ni	ⓘ Taenite	(Fe,Ni)
Au	Gold
Au	ⓘ Native Gold	Au

Fossils

There are 6 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences

Youngest Fossil Listed

89.3 Ma (Late/Upper Cretaceous)

Oldest Fossil Listed

372 Ma (Late/Upper Devonian)

Stratigraphic Units

Unit	No. Occurrences	Age
San Andres	5	2.588 - 0.781 Ma (Pleistocene)
Mancos Shale - Tres Hermanos	2	93.5 - 89.3 Ma (Late/Upper Cretaceous)
Caballero	4	358.9 - 345.3 Ma (Paleozoic)
Woodford	7	372.2 - 358.9 Ma (Late/Upper Devonian)

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Bispathodus genus	Animalia : Chordata : Conodonta : Ozarkodinida : Polygnathidae : *Bispathodus*	372.2 - 358.9 Ma Late/Upper Devonian
Palmatolepis genus	Animalia : Chordata : Palmatolepidae : *Palmatolepis*	372.2 - 358.9 Ma Late/Upper Devonian
Euomphalus kaibabensis species	Animalia : Mollusca : Gastropoda : Euomphalidae : Euomphalus : *Euomphalus kaibabensis*	279.3 - 272.3 Ma Permian
Parapenascoceras rotundatum species	Animalia : Mollusca : Cephalopoda : Nautilida : Domatoceratidae : Parapenascoceras : *Parapenascoceras rotundatum*	272.3 - 268.8 Ma Permian
Penascoceras bradyi species	Animalia : Mollusca : Cephalopoda : Nautilida : Domatoceratidae : Penascoceras : *Penascoceras bradyi*	272.3 - 268.8 Ma Permian
Parapenascoceras sanandreasense species	Animalia : Mollusca : Cephalopoda : Nautilida : Domatoceratidae : Parapenascoceras : *Parapenascoceras sanandreasense*	272.3 - 268.8 Ma Permian
Domatoceras walteri species	Animalia : Mollusca : Cephalopoda : Nautilida : Grypoceratidae : Domatoceras : *Domatoceras walteri*	272.3 - 268.8 Ma Permian
Gattendorfia (Gattendorfia) bransoni species	Animalia : Mollusca : Cephalopoda : Goniatitida : Gattendorfiidae : Gattendorfia : *Gattendorfia (Gattendorfia) bransoni*	358.9 - 345.3 Ma Paleozoic
Pericyclus (Goniocyclus) cooperi species	Animalia : Mollusca : Cephalopoda : Goniatitida : Pericyclidae : Pericyclus : *Pericyclus (Goniocyclus) cooperi*	358.9 - 345.3 Ma Paleozoic
Pericyclus (Goniocyclus) costulatus species	Animalia : Mollusca : Cephalopoda : Goniatitida : Pericyclidae : Pericyclus : *Pericyclus (Goniocyclus) costulatus*	358.9 - 345.3 Ma Paleozoic
Coilopoceras inflatum species	Animalia : Mollusca : Cephalopoda : Ammonoidea : Coilopoceratidae : Coilopoceras : *Coilopoceras inflatum*	93.5 - 89.3 Ma Late/Upper Cretaceous

Fossil Localities

Click to show 6 fossil localities

USA

New Mexico
- Chaves County
  - Permian🐚 Penasco Valley
  - Late/Upper Devonian🐚 Shell Champeau
  - Late/Upper Cretaceous🐚 USGS Mesozoic D10636
  - Late/Upper Cretaceous🐚 USGS Mesozoic D10644
  - Paleozoic🐚 USNM 508d
  - Permian🐚 USNM One Tree Peak

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Chaves_County,_New_Mexico
Wikidata ID:	Q111245
GeoNames ID:	5461428

Localities in this Region

USA

New Mexico
- Chaves County

USA

New Mexico
- Chaves County
  - Lake Arthur
    - Aragonite locality
  - Pecos River Valley
    - ⭔Roswell area
  - Rio Hondo
  - Stoltz Test Hole
  - Walnut Draw Gypsum Deposit
  - White well no. 3-1

Other Regions, Features and Areas that Intersect

North AmericaContinent

North America PlateTectonic Plate

Mazatzal DomainDomain
Mazatzal TerraneVolcanic Arc
Permian BasinBasin

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.

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Chaves County, New Mexico, USAiRegional Level TypesChaves CountyCounty New MexicoState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Fossils

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