CITRINE (lemon stone), the yellow and orange variety of quartz VARIETY INFORMATION:VARIETY OF: Quartz , SiO 2 . USES: Gemstone and ornamental stone. BIRTHSTONE FOR: November COLOR: various shades of yellow and...
AMETHYST, the purple variety of quartz VARIETY INFORMATION:Variety of: Quartz , SiO2 . Uses: Gemstones and ornamental stones. Birthstone for: February Color: various shades of purple. Index of refraction:...
Garnet, the January birthstone, derived its name from the Latin word granatus, meaning like a grain, which refers to the mode of occurrence wherein crystals resemble grains or seeds embedded in the matrix....