earring

▸ Material composition: 70% gold + 30% platinum alloy
▸ Process type: K-type casting standard
▸ Density parameter: 19.3g/cm³ (gold) | 21.45g/cm³ (white gold)
▸ Hardness grade: 2.5 on the Mohs scale (gold) | Grade 4.3 (White Gold)
▸ Melting Standard: ASTM B562-13 Specification for Precious Metals