12PK Raw Red Sandstone, Sedimentary Rock Specimen - Approx. 1"- Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs 12 electronics3 28inch(Dia x H) Wheel Size:

28inch(Dia x H) Wheel Size: 12x26x6mm/0

Operating Temperature : 14 to 140 F

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12PK Raw Red Sandstone, Sedimentary Rock Specimen - Approx. 1"- Geologist Selected & Hand Processed - Great for Science Classrooms - Eisco Labs 12 electronics3 28inch(Dia x H) Wheel Size:12PK Raw Red Sandstone, Sedimentary Rock Specimen Approx. 1" Geologist Selected & Hand Processed Great for Science Classrooms Eisco Labs Product Features RED SANDSTONE Sandstone is made up of well sorted and well rounded grains of quartz. This indicates that the clasts in the rocks have traveled a long distance from their source and were heavily eroded along the way. This sample is red due to the inclusion of iron in the chemical structure of the