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Unnamed skarn deposit, Christmas Mountains, Brewster County, Texas, USAi
Regional Level Types
Unnamed skarn depositDeposit
Christmas MountainsMountain Range
Brewster CountyCounty
TexasState
USACountry

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Latitude & Longitude (WGS84):
29° North , 103° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~97km
GRN:
N20W64
Type:
Deposit
KΓΆppen climate type:
BSh : Hot semi-arid (steppe) climate
Mindat Locality ID:
41966
Long-form identifier:
mindat:1:2:41966:3
GUID (UUID V4):
ecda14d1-67f4-48c9-a706-7e45d5b8c07a


Skarn formed between the contact of an alkaline gabbro and limestones.
(U. S. Army Map Service photograph 26777)

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


19 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

Detailed Mineral List:

β“˜ Analcime
Formula: Na(AlSi2O6) · H2O
β“˜ Andradite
Formula: Ca3Fe3+2(SiO4)3
β“˜ Anorthite
Formula: Ca(Al2Si2O8)
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜ Augite var. Titanium-bearing Augite
Formula: (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Bredigite
Formula: Ca7Mg(SiO4)4
β“˜ Grossular
Formula: Ca3Al2(SiO4)3
β“˜ Ilmenite
Formula: Fe2+TiO3
β“˜ Kilchoanite
Formula: Ca6(SiO4)(Si3O10)
β“˜ Larnite
Formula: Ca2SiO4
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ 'Melilite Group'
Formula: Ca2M(XSiO7)
β“˜ Merwinite
Formula: Ca3Mg(SiO4)2
β“˜ Monticellite
Formula: CaMgSiO4
β“˜ Nepheline
Formula: Na3K(Al4Si4O16)
β“˜ Perovskite
Formula: CaTiO3
β“˜ Rankinite
Formula: Ca3Si2O7
β“˜ Spurrite
Formula: Ca5(SiO4)2(CO3)
β“˜ Tilleyite
Formula: Ca5(Si2O7)(CO3)2
β“˜ Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
β“˜ Wollastonite
Formula: Ca3(Si3O9)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Perovskite4.CC.30CaTiO3
Group 9 - Silicates
β“˜Monticellite9.AC.10CaMgSiO4
β“˜Larnite9.AD.05Ca2SiO4
β“˜Merwinite9.AD.15Ca3Mg(SiO4)2
β“˜Bredigite9.AD.20Ca7Mg(SiO4)4
β“˜Grossular9.AD.25Ca3Al2(SiO4)3
β“˜Andradite9.AD.25Ca3Fe3+2(SiO4)3
β“˜Spurrite9.AH.15Ca5(SiO4)2(CO3)
β“˜Rankinite9.BC.15Ca3Si2O7
β“˜Tilleyite9.BE.82Ca5(Si2O7)(CO3)2
β“˜Vesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(β—»4)β—»[Si2O7]4[(SiO4)10]O(OH)9
β“˜Kilchoanite9.BJ.45Ca6(SiO4)(Si3O10)
β“˜Augite
var. Titanium-bearing Augite		9.DA.15(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
β“˜9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜Wollastonite9.DG.05Ca3(Si3O9)
β“˜Nepheline9.FA.05Na3K(Al4Si4O16)
β“˜Anorthite9.FA.35Ca(Al2Si2O8)
β“˜Analcime9.GB.05Na(AlSi2O6) Β· H2O
Unclassified
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)
β“˜'Melilite Group'-Ca2M(XSiO7)

List of minerals for each chemical element

HHydrogen
Hβ“˜ AnalcimeNa(AlSi2O6) · H2O
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cβ“˜ SpurriteCa5(SiO4)2(CO3)
Cβ“˜ TilleyiteCa5(Si2O7)(CO3)2
OOxygen
Oβ“˜ AnalcimeNa(AlSi2O6) · H2O
Oβ“˜ AndraditeCa3Fe23+(SiO4)3
Oβ“˜ AnorthiteCa(Al2Si2O8)
Oβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ BredigiteCa7Mg(SiO4)4
Oβ“˜ GrossularCa3Al2(SiO4)3
Oβ“˜ IlmeniteFe2+TiO3
Oβ“˜ KilchoaniteCa6(SiO4)(Si3O10)
Oβ“˜ LarniteCa2SiO4
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MerwiniteCa3Mg(SiO4)2
Oβ“˜ MonticelliteCaMgSiO4
Oβ“˜ NephelineNa3K(Al4Si4O16)
Oβ“˜ PerovskiteCaTiO3
Oβ“˜ RankiniteCa3Si2O7
Oβ“˜ SpurriteCa5(SiO4)2(CO3)
Oβ“˜ TilleyiteCa5(Si2O7)(CO3)2
Oβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Oβ“˜ WollastoniteCa3(Si3O9)
Oβ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Oβ“˜ Melilite GroupCa2M(XSiO7)
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ AnalcimeNa(AlSi2O6) · H2O
Naβ“˜ NephelineNa3K(Al4Si4O16)
Naβ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
MgMagnesium
Mgβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgβ“˜ BredigiteCa7Mg(SiO4)4
Mgβ“˜ MerwiniteCa3Mg(SiO4)2
Mgβ“˜ MonticelliteCaMgSiO4
Mgβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Mgβ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
AlAluminium
Alβ“˜ AnalcimeNa(AlSi2O6) · H2O
Alβ“˜ AnorthiteCa(Al2Si2O8)
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ GrossularCa3Al2(SiO4)3
Alβ“˜ NephelineNa3K(Al4Si4O16)
Alβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Alβ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
SiSilicon
Siβ“˜ AnalcimeNa(AlSi2O6) · H2O
Siβ“˜ AndraditeCa3Fe23+(SiO4)3
Siβ“˜ AnorthiteCa(Al2Si2O8)
Siβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ BredigiteCa7Mg(SiO4)4
Siβ“˜ GrossularCa3Al2(SiO4)3
Siβ“˜ KilchoaniteCa6(SiO4)(Si3O10)
Siβ“˜ LarniteCa2SiO4
Siβ“˜ MerwiniteCa3Mg(SiO4)2
Siβ“˜ MonticelliteCaMgSiO4
Siβ“˜ NephelineNa3K(Al4Si4O16)
Siβ“˜ RankiniteCa3Si2O7
Siβ“˜ SpurriteCa5(SiO4)2(CO3)
Siβ“˜ TilleyiteCa5(Si2O7)(CO3)2
Siβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Siβ“˜ WollastoniteCa3(Si3O9)
Siβ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Siβ“˜ Melilite GroupCa2M(XSiO7)
PPhosphorus
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ NephelineNa3K(Al4Si4O16)
CaCalcium
Caβ“˜ AndraditeCa3Fe23+(SiO4)3
Caβ“˜ AnorthiteCa(Al2Si2O8)
Caβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caβ“˜ BredigiteCa7Mg(SiO4)4
Caβ“˜ GrossularCa3Al2(SiO4)3
Caβ“˜ KilchoaniteCa6(SiO4)(Si3O10)
Caβ“˜ LarniteCa2SiO4
Caβ“˜ MerwiniteCa3Mg(SiO4)2
Caβ“˜ MonticelliteCaMgSiO4
Caβ“˜ PerovskiteCaTiO3
Caβ“˜ RankiniteCa3Si2O7
Caβ“˜ SpurriteCa5(SiO4)2(CO3)
Caβ“˜ TilleyiteCa5(Si2O7)(CO3)2
Caβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Caβ“˜ WollastoniteCa3(Si3O9)
Caβ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Caβ“˜ Melilite GroupCa2M(XSiO7)
TiTitanium
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiβ“˜ IlmeniteFe2+TiO3
Tiβ“˜ PerovskiteCaTiO3
Tiβ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
FeIron
Feβ“˜ AndraditeCa3Fe23+(SiO4)3
Feβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ IlmeniteFe2+TiO3
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ VesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Feβ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6

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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

Joesten, R. (1974) Pseudomorphic replacement of melilite by idocrase in a zoned calc-silicate skarn. Christmas Mountains, Big Bend region, Texas. American Mineralogist: 5: 694-699.
Joesten, Raymond Leonard (1974) Metasomatism and magmatic assimilation at a gabbro-limestone contact, Christmas Mountains, Big Bend region, Texas. Dissertation (Ph.D.), California Institute of Technology.
Rocks & Minerals (1991): 66(3): 196-224.
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