Heart-shaped glomerocryst (aggregate of phenocrysts) made of plagioclase and pyroxene in a cordierite-bearing dacitic lava from Lipari (Eolie Islands). I study the crustal xenoliths of these lavas to understand the processes accompanying high-temperature metamorphism and crustal melting. But I came across this spectacular glomerocryst and couldn’t help but take a picture!
Polarized light photomicrograph. Crossed polarizers plus red tint plate. Width c. 5 mm.
Description by Bernardo Cesare, after the description on imaggeo.egu.eu.
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