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Polarised LM of Granite In Thin Section
25" x 19"
Polarised LM of Granite In Thin Section--Framed Photographic Print
Your Essential Brown Frame

Granite Polarised light micrograph of a sample of granite in thin section Granite is an igneous intrusive rock usually found in large plutons or batholyths Its chemistry is felsic it consists of quartz potassic feldspar plagioclase and biotite mica The colour may be white grey or pink Its structure is massive with medium or fine grain Large crystal inclusions xenoliths of mafic minerals may also be seen The main use of granite is as a building material Magnification x at xcm size Magnification x at x inch size