Esiva, Kaominina Maromby, Distrikan'i Amboasary, Faritra Anosy, Faritanin'i Toliary, Madagasikara
The locality named "Esiva" in elder litterature refers to a pyroxenite vein that has been worked for thorianite and phlogopite. It is situated 5 km west of Andranondambo, which again is situated 20 km northeast of the small town Tranomaro in the southeastern part of Madagascar. The locality was first registred as "P.E. 1439 Hibon".
Metamorphosed limestone, pyroxenite, gneiss, and granulite of the amphibolite to granulite facies.
The largest Thorianite crystal from this location is 6 cm and weighs ca. 2.2 kg. Since 1962 it has the sample number "106222" (previously 6222) in the "Ecole des mines" in Paris. It was aquired by an exchange.
On the type locality of Hibonite: see
http://www.mindat.org/loc-211534.html.
Mineral List
4 entries listed. 3 valid minerals.
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References
- J. Behier (1960): Contribution a la mineralogie de Madagascar. Ann.Geol.de Mad. XXXIX. p 42-43
- Besairie, H. (1966): Les Gites Minéraux de Madagascar. Annales Géologiques de Madagascar, Tananarive, 34, 92p
- Coordinates from:
http://www.fallingrain.com/world/MA/6/Esiva.html
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