Rhodoniet 8x6 mm Baguette Cabochon ± 1.50 CT. Color: Mottled Pink Clarity: Semi Opaque Luster: Good Polish with Fine Glow Origin: Africa Hardness: 5.5 - 6.5 Specific Gravity: 3.4 - 3.7 Refractive Index: N/A Chemical Composition: (Mn, Fe, Mg, Ca)5(SiO3)5 , Manganese Iron Magnesium Calcium Silicate Crystal Structure: Triclinic Treatment: None