Russia, Southern and central Africa, Color: green, yellowish green, Hardness: 6.5, Refractive index: 1.88 1.89, Density: 3.82 3.85, Chemical composition: Ca3Fe2(SiO4)3, Crystal structure: isometric, Origins: Russia, Namibia
Southern and central Africa, Sixth Edition (2006)
Green, Red, Green, orange
Blue, Green, Blue, Brown
Not Available
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle