Ganister, polarised light micrograph

Ganister, polarised light micrograph

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Credit: ALFRED PASIEKA/SCIENCE PHOTO LIBRARY

Caption: Bright field light micrograph of a thin section of ganister.A ganister is hard, fine-grained quartzose sandstone, or orthoquartzite, used in the manufacture of silica brick typically used to line furnaces. Ganisters are cemented with secondary silica and typically have a characteristic splintery fracture. Horizontal object size: 0.25 mm.

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Keywords: earth science, ganister, geology, light micrograph, micrograph, sandstone, silica, silica brick, thin section

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