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Keiviite-(Y) from
Reiersdal Pegmatite (Reiarsdal), Øvrebø, Vennesla, Vest-Agder, Norway

Description
Comments:	As microsopic inclusions in britholite-(Y). Secondary, formed by alteration along fractures. The mineral described as "thalenite" from Reiarsdal is probably Keiviiite-(Y). Griffin et al. (1979) notes that the "thalenite" is identical with the phase beta -Y2Si2O7 mineral with thortveitite structure reported from Høgetveit, Evje and Åskagen, Sweden.
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Unconfirmed/Questioned
References
References:	Griffin, W.L., Nilssen, B. & Jensen, B.B. (1979): Britholite-(Y) and its alteration: Reiarsdal, Vest-Agder, south Norway. Norsk Geologisk Tidsskrift 59: 265-271
Data
Mineral Data:	Click here to view Keiviite-(Y) data
Locality Data:	Click here to view Reiersdal Pegmatite (Reiarsdal), Øvrebø, Vennesla, Vest-Agder, Norway

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