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Photographic gallery.  Thousands of particles under the microscope.

Calcium Oxalate Phytolith

This image shows a calcium oxalate monohydrate (whewellite) phytolith from maple (Acer macrophyllum) leaves. Angles around 140, 70, 110, and 127 are common, depending on the form and orientation of the crystal.

Transmitted Off Crossed Linear Polarizers

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