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Lamprophyllite-2O

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Formula:
(Sr,K,Ba)
 
2
(Na,Ti,Mn
2+
 
,Fe
3+
 
)
 
4
Ti
 
2
[O|(O,OH,F)|Si
 
2
O
 
7
]
 
2
A polytype of Lamprophyllite

Orthorhombic polytype of Lamprophyllite.

Originally reported from Gardiner complex, Kangerlussuaq complex, Kangerlussuaq Firth, Tunu (East Greenland) Province, Greenland.

Classification of Lamprophyllite-2O

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Chemical Properties of Lamprophyllite-2O

Formula:
(Sr,K,Ba)
 
2
(Na,Ti,Mn
2+
 
,Fe
3+
 
)
 
4
Ti
 
2
[O|(O,OH,F)|Si
 
2
O
 
7
]
 
2
Simplified for copy/paste:(Sr,K,Ba)2(Na,Ti,Mn2+,Fe3+)4Ti2[O|(O,OH,F)|Si2O7]2
Essential elements:Na, O, Si, Sr, Ti
All elements listed in formula:Ba, F, Fe, H, K, Mn, Na, O, Si, Sr, Ti

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Lamprophyllite-2O

Reference List:

- +
Krivovichev,S.V., Armbruster, T., Yakovenchuk, V.N., Pakhomovsky, Y.A., and Men'shikov, Y.P. (2003) Crystal structures of lamprophyllite-2M and lamprophyllite-2O from the Lovozero alkaline massif, Kola peninsula, Russia. European Journal of Mineralogy: 15: 711-718.

Internet Links for Lamprophyllite-2O

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  • Localities for Lamprophyllite-2O

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Greenland
     
    • Tunu Province (East Greenland)
      • Kangerlussuaq Firth
        • Kangerlussuaq complex
    [AmMin 82:820]
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