The Heart of a Stone
by Bernardo Cesare, Department of Geosciences, University of Padova, Padova, Italy
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.
Categories
Location
Tags
Colours
Image properties
2500 × 1667 px;
image/jpeg; 1.7 MB
Camera:
Nikon D5500
Taken on 30
January
2019
Submitted on 14 February 2019
Licence
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)
Credit
Bernardo Cesare (distributed via imaggeo.egu.eu)
Share
Appreciate
Report