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Gordon Butte, Meagher Co., Montana, USA

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Nepheline-syenite pegmatite dikes cutting malignites and nepheline microsyenites.
Located in the Crazy Mountains.



References:
-
http://www.cseg.ca/conferences/2000/2000abstracts/376.PDF
- Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114.
- Chakhmouradian A.R. & Zaitsev A.N. (2002) Calcite-amphibole-clinopyroxene rock from the Afrikanda complex, Kola Peninsula, Russia: Mineralogy and a possible link to carbonatites. III. Silicate minerals. Can. Mineral., 40, 1347-1374.





Mineral List:
  		•  Aegirine
    NaFe
    3+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Aegirine-augite
    (Na,Ca)(Fe
    3+
     
    		,Fe
    2+
     
    		,Mg,Al)Si
     
    2
    		O
     
    6
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  'Ancylite'
    Reference: [Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Ancylite-(Ce)
    SrCe[OH|(CO
     
    3
    		)
     
    2
    		] · H
     
    2
    		O
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Apatite-(CaF)
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Augite
    (Ca,Na)(Mg,Fe
    2+
     
    		,Al,Fe
    3+
     
    		,Ti)[(Si,Al)
     
    2
    		O
     
    6
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Baotite
    Ba
     
    4
    		(Ti,Nb)
     
    8
    		Si
     
    4
    		O
     
    28
    		Cl
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Baryte
    BaSO
     
    4
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Barytolamprophyllite
    (Ba,Na)
     
    2
    		(Na,Ti,Fe
    3+
     
    		)
     
    4
    		Ti
     
    2
    		[O|(OH,F)|Si
     
    2
    		O
     
    7
    		]
     
    2
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
    Site Photo
    Gordon Butte, Meagher Co., Montana, USA
    © 2008 Jesse Crawford
  		•  'Bastnäsite'
    Reference: [Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Bastnäsite-(Ce)
    (Ce,La)[F|CO
     
    3
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Belovite-(Ce)
    NaSr
     
    3
    		(Ce,La)[(F,OH)|(PO
     
    4
    		)
     
    3
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Benitoite
    BaTi[Si
     
    3
    		O
     
    9
    		]
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Biotite
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  Cafetite ?
    (Ca,Mg)(Fe,Al)
     
    2
    		Ti
     
    4
    		O
     
    12
    		·4H
     
    2
    		O
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  'Calcioancylite'
    Reference: [Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Calcioancylite-(Ce)
    (Ca,Sr)Ce(CO
     
    3
    		)
     
    2
    		OH·H
     
    2
    		O
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  Calciocatapleiite
    CaZrSi
     
    3
    		O
     
    9
    		·2H
     
    2
    		O
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Calcite
    CaCO
     
    3
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Catapleiite
    Na
     
    2
    		Zr[Si
     
    3
    		O
     
    9
    		]·2H
     
    2
    		O
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  Chamosite
    (Fe
    2+
     
    		,Mg)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Dalyite
    K
     
    2
    		ZrSi
     
    6
    		O
     
    15
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Diopside
    CaMg[Si
     
    2
    		O
     
    6
    		]
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  Eudialyte
    Na
     
    15
    		Ca
     
    6
    		(Fe
    2+
     
    		,Mn
    2+
     
    		)
     
    3
    		Zr
     
    3
    		[Si
     
    25
    		O
     
    73
    		](O,OH,H
     
    2
    		O)
     
    3
    		(OH,Cl)
     
    2
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Giuseppettite ?
    (Na,K,Ca)
     
    7-8
    		[(SO
     
    4
    		,Cl)
     
    1-2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Henrymeyerite
    BaFe
    2+
     
    		Ti
     
    7
    		O
     
    16
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Hyalophane
    (K,Ba)[Al(Si,Al)Si
     
    2
    		O
     
    8
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Kassite ?
    CaTi
     
    2
    		O
     
    4
    		(OH)
     
    2
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  'K Feldspar'
    Reference: [Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Lamprophyllite
    (Sr,K,Ba)
     
    2
    		(Na,Ti,Mn
    2+
     
    		,Fe
    3+
     
    		)
     
    4
    		Ti
     
    2
    		[O|(O,OH,F)|Si
     
    2
    		O
     
    7
    		]
     
    2
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  Loparite-(Ce)
    (Na,Ce,Ca,Sr,Th)(Ti,Nb,Fe)O
     
    3
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Magnesio-arfvedsonite
    [Na][Na
     
    2
    		][Mg
     
    4
    		Fe
    3+
     
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  Magnetite
    var: Titaniferous Magnetite
    Fe
    2+
     
    		(Fe
    3+
     
    		,Ti)
     
    2
    		O
     
    4
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Manganoneptunite
    Na
     
    2
    		KLi(Mn
    2+
     
    		,Fe
    2+
     
    		)
     
    2
    		Ti
     
    2
    		[Si
     
    8
    		O
     
    24
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Natrolite
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
    Reference: []
  		•  Nepheline
    (Na,K)[AlSiO
     
    4
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Neptunite
    Na
     
    2
    		KLi(Fe
    2+
     
    		,Mn
    2+
     
    		)
     
    2
    		Ti
     
    2
    		[Si
     
    8
    		O
     
    24
    		]
    Reference: [Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  'Olivine'
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  'Parisite'
    Reference: [Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Phillipsite-Ca
    (Ca
     
    0.5
    		,K,Na,Ba
     
    0.5
    		)
     
    4-7
    		[Al
     
    4-7
    		Si
     
    12-9
    		O
     
    32
    .
     
    		 12H2O
    Reference: []
  		•  Phlogopite
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Pyrite
    FeS
     
    2
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  Pyrophanite
    Mn
    2+
     
    		TiO
     
    3
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Richterite
    Na[CaNa][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Rinkite
    Ti(Na,Ca)
     
    3
    		(Ca,Ce)
     
    4
    		(Si
     
    2
    		O
     
    7
    		)
     
    2
    		OF
     
    3
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Sanidine
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Chakhmouradian A.R. & Mitchell R.H. (2002) The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114. ]
  		•  Thomsonite-Ca
    NaCa
     
    2
    		[Al
     
    5
    		Si
     
    5
    		O
     
    20
    		] · 6H
     
    2
    		O
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Thorite
    (Th,U)[SiO
     
    4
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.]
  		•  Wadeite
    K
     
    2
    		Zr[Si
     
    3
    		O
     
    9
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  'Zeolite Group'
    Reference: [Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Reference: [www.cseg.ca/conferences/2000/376.PDF.; Chakhmouradian, A. R. & Mitchell, R. H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contributions to Mineralogy and Petrology 143, 93-114. ]


    57 entries listed. 46 valid minerals.

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