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Scawt Hill, Larne, Co. Antrim, Northern Ireland, UK

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Contact metamorphosed limestones and dolostones intruded by diabase.

Ref.: Tilley, C.E. (1929) On larnite (calcium orthosilicate, a new mineral) and its associated minerals from the limestone contact-zone of Scawt Hill, Co. Antrim. Mineralogical Magazine, 22, 77-86.

http://www.habitas.org.uk/escr/summary.asp?item=1130.





Mineral List:
  		•  Afwillite
    Ca
     
    3
    		[HSiO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
    Description: Occurs in a contact zone between limestone and dolerite.
    Reference: [TILLEY, C. E. (1930). An association of afwillite and spurrite. Geological Magazine, 67, 168-169; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 590; Strübel, Zimmer: "Lexikon der Minerale", 2nd Ed., 1991.; Mineralogical Magazine 1942 26 : 190-196]
  		•  Bredigite (TL)
    Ca
     
    7
    		Mg[SiO
     
    4
    		]
     
    4
    Type Locality: Scawt Hill, Larne, Co. Antrim, Northern Ireland, UK
    Reference: [American Mineralogist: 33: 786]
  		•  Calcite
    CaCO
     
    3
    Reference: [Mineralogical Magazine 1930 22 : 222-224]
  		•  Cebollite
    Ca
     
    5
    		Al
     
    2
    		Si
     
    3
    		O
     
    12
    		(OH)
     
    4
    		 or near
    Reference: [http://rruff.geo.arizona.edu/doclib/hom/cebollite.pdf.]
  		•  Ettringite
    Ca
     
    6
    		Al
     
    2
    		[(OH)
     
    4
    		|SO
     
    4
    		]
     
    3
    		 · 26H
     
    2
    		O
    Description: Occurs in a contact zone between limestone and dolerite.
    Reference: [Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 590.; Mineralogical Magazine 1942 26 : 190-196]
  		•  Ferrobustamite
    Ca(Fe
    2+
     
    		,Ca,Mn
    2+
     
    		)[Si
     
    2
    		O
     
    6
    		]
    Description: In American Mineralogist, Volume 60, pages 209-212, 1975, the highest iron content of wollastonite is 2.23 percent FeO, in the wollastonite composition field.
    Reference: [American Mineralogist, Volume 60, pages 209-212, 1975]
  		•  Gehlenite
    Ca
     
    2
    		Al[AlSiO
     
    7
    		]
    Reference: [American Mineralogist: 33: 786]
  		•  Hydrocalumite (TL)
    Ca
     
    2
    		Al(OH)
     
    7
    		·2H
     
    2
    		O
    Type Locality: Scawt Hill, Larne, Co. Antrim, Northern Ireland, UK
    Description: Occurs in a contaxct zone between limestone and dolerite.
    Reference: [Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 590.]
  		•  Larnite (TL)
    Ca
     
    2
    		[SiO
     
    4
    		]
    Type Locality: Scawt Hill, Larne, Co. Antrim, Northern Ireland, UK
    Reference: [Tilley, C.E. (1929) On larnite (calcium orthosilicate, a new mineral) and its associated minerals from the limestone contact-zone of Scawt Hill, Co. Antrim. Mineralogical Magazine, 22, 77-86.; American Mineralogist: 33: 786; Mineralogical Magazine 1942 26 : 190-196]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [American Mineralogist: 33: 786]
  		•  Melilite
    (Ca,Na)
     
    2
    		(Al,Mg,Fe
    2+
     
    		)[(Al,Si)SiO
     
    7
    		]
    Reference: [American Mineralogist: 33: 786; Mineralogical Magazine 1930 22 : 222-224; Mineralogical Magazine 1942 26 : 190-196]
  		•  Okenite
    CaSi
     
    2
    		O
     
    5
    		·2H
     
    2
    		O
    Reference: []
  		•  Pectolite
    NaCa
     
    2
    		[HSi
     
    3
    		O
     
    9
    		]
    Reference: []
  		•  Perovskite
    CaTiO
     
    3
    Reference: [American Mineralogist: 33: 786]
  		•  Plombièrite
    Ca
     
    5
    		Si
     
    6
    		O
     
    16
    		(OH)
     
    2
    		·7H
     
    2
    		O
    Reference: [No reference listed]
  		•  Portlandite (TL)
    Ca(OH)
     
    2
    Type Locality: Scawt Hill, Larne, Co. Antrim, Northern Ireland, UK
    Description: Occurs in a contact zone between limestone and dolerite.
    Reference: [Mineralogical Magazine (1933): 23: 419-420; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 590.]
  		•  Rankinite (TL)
    Ca
     
    3
    		Si
     
    2
    		O
     
    7
    Type Locality: Scawt Hill, Larne, Co. Antrim, Northern Ireland, UK
    Reference: [Mineralogical Magazine 1942 26 : 190-196]
  		•  Scawtite (TL)
    Ca
     
    7
    		Si
     
    6
    		(CO
     
    3
    		)O
     
    18
    		·2H
     
    2
    		O
    Type Locality: Scawt Hill, Larne, Co. Antrim, Northern Ireland, UK
    Reference: [Mineralogical Magazine 1930 22 : 222-224]
    Site Photo
    Scawt Hill, Larne, Co. Antrim, Northern Ireland, UK
    © 2008, JGW
  		•  Spinel
    MgAl
     
    2
    		O
     
    4
    Reference: []
  		•  Spurrite
    Ca
     
    5
    		[CO
     
    3
    		|(SiO
     
    4
    		)
     
    2
    		]
    Reference: [American Mineralogist: 33: 786; Mineralogical Magazine 1942 26 : 190-196]
  		•  'Thomsonite'
    Reference: [Mineralogical Magazine 1930 22 : 222-224]
  		•  Wollastonite
    Ca[SiO
     
    3
    		]
    Reference: [Mineralogical Magazine 1942 26 : 190-196]


    22 entries listed. 18 valid minerals. 6 type localities (valid minerals). 1 erroneous literature entry.

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