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Our Pumice gravel is made of small rocks of pumice ranging in size from 3 mm to 7 mm, the perfect size for jewelry work from small to large. These pumice rocks are used during annealing as it reflects heat making for a quicker process. Use in one of our rotating annealing pans or in a suitable working container. Choose from 3 different bulk amounts: 154.122-1LB 1 lb Pack 154.122-2-5LB 2.5 lb Pack 154.122-20LB 20 lb Box
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🇺🇸 Ship from USA · On Agora since 2025
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