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.
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- rhyolite (4)
- minerals (21)
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- science (6)
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Image properties
1900 × 1318 px;
image/jpeg; 3.1 MB
Camera:
Canon EOS 550D
Taken on 22
March
2013
Submitted on Feb. 21, 2014
Licence
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)
Credit
Bernardo Cesare (distributed via imaggeo.egu.eu)
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