La Caravelle, Martinique, Lesser Antilles, French West Indies

Argillized volcanic dacitic agglomerate belonging to the colder external volcanic arc (36-22 My). Quartz and feldspar phenocrysts are replaced by clay and calcite, in a matrix of hematite and clay.

North coast of La Caravelle: Anastomosing networks of clay veins in altered rock, with bleached zone around veins.
South coast of La Caravelle: Agglomerate rock altered by calcite precipitating spring vents.

Mineral List:

	Calcite

	Hematite

	Illite

	Kaolinite

	'Smectite Group'

5 entries listed. 4 valid minerals.

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