Specification Brand : Generic BulletPoint1 : A metallic germanium cube engraved with the periodic table of elements BulletPoint2 : Its purity is ≥99.999% BulletPoint3 : Its size is 10*10*10mm BulletPoint4 : Package includes: 1pc metallic germanium cube IncludedComponents : 1pc ItemName : 10mm Pure Germanium Cube Metal 1pc, 99.999% High-Purity Engraving Ge, for Laboratory Experimental Projects, Periodic Table Sample Collection, Scientific and Laboratory Experimental Projects ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 10 centimeters ItemTypeKeyword : science-classroom-specimens Manufacturer : Generic NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : GE10MM202504171467 ProductDescription : he element symbol of metallic germanium is Ge. The boiling point of metallic germanium is 2830℃. Its density is 5.35g/cm³。 The atomic number of germanium is 32, the atomic weight is 72.64, and it belongs to the IVA group of elements. Germanium is a gray-white metalloid, shiny, hard, belongs to the carbon family, has obvious non-metallic properties, hardness is 6 - 6.5, and the melting point is 937.4℃.