Mineral: Quartz
Locality: Windsor (Richmond), Le Val-Saint-François RCM, Estrie, Québec, Canada
Dimensions: unknown, about 1 cm or less

Description: A single crystal with faden, viewed under cross-polarized light. The uniform color between the faden region and the surrounding crystal shows that they are in the same crystallographic orientation. The color changes from one end to the other because the thickness of the section changes.

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