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Marijao pegmatite, Ankazobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar

(Marijao, Distrikan' i Ankazobe, Pegmatitan' i Ankazobe, Faritra Analamanga, Faritra Analamanga, Faritanin'i Antananarivo, Madagasikara)

A LCT pegmatite prospected by the Commisariat á l 'Énergie in the 1950s, situated about 55 km NNE of the town Ankazobe, N of the capitol, Antananarivo.
Large beryl crystals of beryl up to 100 kg were found here in 1971.



References:
- Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
- Petsch, E. J. and Schmetzer, K. (2002): Das Aquamarinvorkommen von Marijao in Madagaskar: einer der grössten jemals bekannt gewordenen Aquamarinfunde. in "Aquamarin & Co". ExtraLapis No. 23: 56-61 [German version]





Mineral List:
'Allanite'
Beryl
var: Aquamarine
'Columbite-Tantalite'
Euxenite-(Y)
'Fergusonite'
Microcline
var: Amazonite

Samarskite-(Y)


8 entries listed. 3 valid minerals.

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