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Fig. 6. Photomicrographs of the A1 horizon of the Kootenai soil on terrace T1 in plain light showing a sand-size quartz grain (upper left, QTZ) in an isotic plasmic fabric that includes some glass shards (Gs). The c/f distribution is gefuric. The coating on the Quartz and schist grain (right center, Bt) is isotropic (amorphous) (a). The weathered part (vermiculite) of the schist grain is anisotropic and partly pleochoic. Frame width (F.W.) = 2.0 mm.
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