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Rocks and Minerals seen through the Petrological Microscope
Normal Light
Polarised Light
(Scale: Each image approx. 0.75 mm across)
Microcline Feldspar. Locality unknown.Mostly a large crystal of Microcline Feldspar showing typical cross-hatched perthitic texture. Some Quartz top left and bottom right and Muscovite in vein near top centre.