Rhyolite dykes, Choc, Saint Lucia

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Calco-alcaline volcanic arc of Lesser Antilles.
Rhyolite NE-SW dykes in lapillis and volcanic ashes in Bisé quarry and NE-SW dykes in andesitic pyroclastites between Choc village and electricity production plant.

Mineral List:

Albite
var: Andesine
var: Oligoclase
Augite
Calcite

Cristobalite
Fayalite
'Ferrohortonolite'
Iddingsite

Magnetite
var: Titaniferous Magnetite
'Smectite Group'

10 entries listed. 4 valid minerals.

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