Cap Andrahomana, Ranopiso Department, Anosy (Fort Dauphin) Region, Tuléar (Toliara) Province, Madagascar

(Cap Andrahomana, Departemanta Ranopiso, Faritra Anosy, Faritany Toliary, Madagasikara)

Cap Andrahomana is situated WSW of the town Fort Dauphin (Taolanaro), at the southernmost point of the mountainrange Chaînes Anosyennes. This is the type locality of grandidierite, where it was found in 1902 in a small pegmatite as up to 8 cm long crystals.

The pegmatite cross-cuts migmatitic high-grade granulite-facies (800 °C, 5-5.5 kb, 561 +/-12 Ma)metapelite gneisses and leptynites.

Ref:
- Eur. J. Minéral; , 1991, 3, pp.367-386.
- A.Lacroix (1922):Mineralogie de Madagascar. Tome I. Paris

Detailed

By Chemistry

Mineral Photos (3)

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Mineral List:

	Almandine

	Andalusite

	Biotite

	Cordierite

	Enstatite

	'Garnet Group'

	Grandidierite (TL)

	Hercynite

	Ilmenite

	'K Feldspar'

	Microcline

	'Monazite'

	Quartz

	Sillimanite

	Spinel

	'Unnamed (Fe analogue of Werdingite)'

	Werdingite

17 entries listed. 12 valid minerals. 1 type locality (valid mineral).

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