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Raw Anthracite Coal Specimens 10 raw anthracite coal pieces per divided plastic box, preserving their natural luster and hard texture. High-carbon content (90%+), distinguishing it from other coal types, perfect for energy or geology studies. Shiny black surface with conchoidal fracture, making it visually distinct for collectors or classroom displays. Suitable for demonstrating fossil fuel formation or as a reference sample in mineralogy courses. GeLaozee’s strict sourcing ensures each piece is authentic anthracite, free from low-grade coal impurities. ASIN B0FD7P2877 Item Weight 3.52 ounces Manufacturer GeLaozee Item model number LCPR-GLZ-105 Package Dimensions 6.02 x 3.27 x 1.26 inches