M8326
Zoned and resorbed plagioclase phenocrysts set in a glassy matrix.
Amphibole and plagioclase phenocrysts (the latter are zoned and
have resorbed zones) set in a glassy matrix. Note the prismatic and
basal sections of amphibole.
Clinopyroxene phenocryst with amphibole reaction
rim
(corona). Note also the basal sections of discrete amph-
ibole phenocrysts. PPL
