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Raw Graphite, Pure Carbon Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
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Raw Graphite, Pure Carbon Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
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Raw Graphite, Pure Carbon Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
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Raw Graphite, Pure Carbon Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
Raw Graphite, Pure Carbon Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
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Raw Graphite, Pure Carbon Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
Raw Graphite, Pure Carbon Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs: Amazon.com: Industrial & Scientific
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