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Turquoise Grading Part Three

In our final video for our January turquoise grading month Mike looks at some very high grade dark web turquoise from three different mines and grades them using the Turquoise Grading Rules based upon the Robert's Ryan rules for turquoise grading to determine an R2 alpha/numeric grade. Try grading these yourself to see how your grades compare understanding that an actual grade may not be assigned from a photo.


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