I recently came into some of these blanks but have no idea what they are. They are blue stone with white stone mixed in. They measure 1.5 x 5.5 inches and are fairly heavy. I looked up Tru-stone pictures and while they look kinda similar I didn't see any matches. I have 8 of these suckers but have little use for them as I wouldn't know how to turn them, etc. Any help would be appreciated. Picture attached.
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