PHOTOMICROGRAPH

Water Well Cuttings Sample

Shocked Feldspar Grain

Broadly-spaced, mostly light-colored lines trending with the long axis of the grain and those perpendicular to the axis are cleavage planes. The fine, dark, cross-cutting sets of lines are planar deformation features and the buff-colored material is clay.

field 1.3 x 0.84 mm
cross-polarized light