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Tomahawk river, Waterhouse district, Tasmania, Australia

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A lamprophyre dyke near the river mouth contains a number of unusual minerals.
Everard, J.L., Sutherland, F.L. and Zwingmann, H., 2004a. A Cretaceous phonolite dyke from the Tomahawk River, Northeast Tasmania. Papers and Proceedings of the Royal Society of Tasmania 138, 11-33.




Group 8 - Phosphates, Arsenates and Vanadates
  		• Apatite-(CaF)8.BN.05
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
  		• Apatite-(CaOH)8.BN.05
    Ca
     
    5
    		[OH|(PO
     
    4
    		)
     
    3
    		]
    Group 9 - Silicates
  		• Aegirine9.DA.25
    NaFe
    3+
     
    		[Si
     
    2
    		O
     
    6
    		]
  		• Analcime9.GB.05
    Na
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
  		• Annite9.EC.20
    KFe
    2+
    3
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Anorthoclase9.FA.30
    (Na,K)[AlSi
     
    3
    		O
     
    8
    		]
  		• Arfvedsonite9.DE.25
    [Na][Na
     
    2
    		][Fe
    2+
    4
    		Fe
    3+
     
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
  		• Edenite9.DE.15
    Na[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
  		• Fayalite9.AC.05
    Fe
    2+
    2
    		[SiO
     
    4
    		]
  		• Hastingsite9.DE.15
    [Na][Ca
     
    2
    		][Fe
    2+
    4
    		Fe
    3+
     
    		][(OH)
     
    2
    		|Al
     
    2
    		Si
     
    6
    		O
     
    22
    		]
  		• Katophorite9.DE.20
    Na[CaNa][Fe
    2+
    4
    		(Al,Fe
    3+
     
    		)][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
  		• Nepheline9.FA.05
    (Na,K)[AlSiO
     
    4
    		]
  		• Pectolite9.DG.05
    NaCa
     
    2
    		[HSi
     
    3
    		O
     
    9
    		]
  		• Sanidine9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Siderophyllite9.EC.20
    KFe
    2+
    2
    		Al[Al
     
    2
    		Si
     
    2
    		O
     
    10
    		](OH)
     
    2
  		• Sodalite9.FB.10
    Na
     
    8
    		[Cl
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		]


    16 entries listed. 16 valid minerals.

    The above list 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!
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