micROCKScopica - Ocean Jasper
by Bernardo Cesare, Department of Geosciences, University of Padova, Padova, Italy
Polarized light photomicrograph of a thin section of Ocean Jasper.
Ocean Jasper is an orbicular silicified rhyolite (volcanic rock) from Madagascar. The photomicrograph is a close-up of impinging spherulitic orbs showing their radiating texture of fibrous chalcedony their opaque-rich cores. Just a 4 mm across.
Taken on 22
March
2013
Submitted on 21 February 2014
Featured on GeoLog, the official blog of the European Geosciences Union
Categories
- European Geosciences Union (258)
- Geochemistry, Mineralogy, Petrology & Volcanology (734)
- Laboratory (94)
Location
Tags
rhyolite, minerals, petrography, science, art, microscopy, ocean jasper, madagascar
Colour distribution
Download original file
1900 × 1318 px;
image/jpeg; 3.1 MB
Camera:
Canon EOS 550D
Licence
Credit: Bernardo Cesare (distributed via imaggeo.egu.eu)
Share this
Click to appreciate
Report