Microfractures
EK1-17. a. Scanned CL image. Microfracture is dark band cutting
across middle of photo. Bright spots are corundum remaining from
thin section polishing. b. Plane-polarized photomicroscope image
of same region. Microfracture is not visible in this image.
MGI6-1. Scanned CL image with microfracture visible as dark band
cutting across southwest corner. Bright spots are corundum remaining
from thin section polishing process.
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