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Technique and Dimensions:
Catlinite (red clayey shale) carved
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Descrizione:
The catlinite was found only in the Pipestone quarry in Minnesota (now Pipestone National Monument). As soon as it was extracted, it was easy to work: to make the holes for the tobacco and for the storing of the torch, a wooden reel was used, rotated with a bow, gradually introducing abrasive sand and water into the hole.
