1" 25.4mm Lead Plumbum Metal Cube Pb up to 99.9% Pure Periodic Table Element Engraved Density Collection Science Education Display Block Cube + Acrylic Case Box - 1PC

All our minerals and crystals are carefully measured with digital measuring instruments that provide the high accuracy of numbers/values!

• HQRP-Crystal® 1" / 25.4mm Lead Metal Cube + Acrylic Case Box;
• Density (g cm−3) - 11.34; Atomic number - 82; Relative atomic mass - 207.2; Melting point - 327.462°C / 621.432°F / 600.612 K; Boiling point - 1749°C / 3180°F / 2022 K. Average 1 Cube weight: 186g / 6.5oz;
• Each 1" (25.4mm) cube made from up to 99.9% pure Lead and featuring attractive, ground surfaces and laser engraved label.
• Every cube perfectly finished with sharp edges and corners and no burrs. Makes a great gift for chemistry students, teachers and professors!