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Sample of chalk. Chalk is a soft, white available as Framed Prints, Photos, Wall Art and Photo Gifts
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anyone know why these bags of sand and chalk came with a pallet of sandstone caps? newbie here : r/landscaping
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Amazon.com: EISCO Raw Limestone Chalk, Sedimentary Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms Labs : Industrial & Scientific
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