USA, Mexico, Brazil, Switzerland, Sri Lanka, Burma, Madagascar, Color: colorless, light yellow, light pink, Hardness: 7, Refractive index: 1.63 1.64, Density: 2.98 3.03, Chemical composition: Ca(B2Si2O8), Crystal structure: orthorhombic, Origins: USA, Mexico, Brazil, Germany, Switzerland, Sri Lanka, Burma, Madagascar, Japan. Colorless danburites are common, with light pink or yellowish stones being more rare and expensive. Only eye clean pieces are valuable.
Southern and central Africa, violet, blue, violet, blue
Yellow, Brown, Colorless, White, gray, Brownish, Yellow
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Not Available
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius