I like to take photos of rocks under the microscope also because of their aesthetic appeal. It’s a hidden, marvelous world. View of an Agate from Brazil. Agate is made of microcrystalline SiO2, called chalcedony. In this image we can appreciate the variety of microstructures in an agate: after an initial growth as microcrystalline aggregates, crystals become fibers, arranged in radial textures (spherulitic growth). Here the sections of the spherulites mimick a 3-D topography.30-micron rock thin section Nikon D5500 camera on Zeiss Axioscop 40Pol microscope. Polarized transmitted light, crossed polarizers and red tint plate. Microscope lens 2,5 x (width of view: 5,3 mm). Slight adjustment of color and contrast.
Speed shooting: 1/15
Focal range(mm): 0mm
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