Geometric Microscape of Agate
Bernardo Cesare
Department of Geosciences, University of Padova, Padova, Italy
"Crazy Lace" is an agate collected in Mexico, which offers great opportunities for aesthetic photomicrography.
Here we see the common arrangement of fibers of chalcedony (microcrystalline quartz) in parallel bands alternating with black thin layers of Fe oxides.
Polarized light photomicrograph, crossed polarizers and red tint plate. width 5.4 mm.
Sample kindly provided by Denise M. Harrison.
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Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0) (opens in a new window)Credit: Bernardo Cesare (distributed via imaggeo.egu.eu)
Properties
Type
Image
Format
JPG
Size
2.7 MB
Aspect
2:3
Width
2000 px
Height
3000 px
Brand
Nikon
Model
D5500
Exposure
1/640 s ISO 1000
Tint
Vivid purplish blue
Submitted
14 February 2019
Taken
23 December 2018
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