Amazonite

Amazonite also called Amazon stone (it derived from the Amazon) is a mostly opaque, green green sodium feldspar. Color distribution is irregular; luster is vitreous; it is sensitive to pressure. Deposits are found in Colorado, Brazil, India, Kenya, Madagascar, Namibia, and Russia. For many years, the source of Amazonite's color was a mystery. Naturally, many people assumed the color was due to copper because copper compounds often have blue and green colors.More recent studies suggest that the blue-green color results from small quantities of lead and water in the feldspar.Hardness on Mohs Scale is 6-6.5.

Amazonite often has white lines or alternating streaks mixed in, and can have uneven color distribution. A deep forest-green color is most preferred, but Amazonite gemstones can also be light green and bluish-green. Grayish-green and very faint green stones also exist, but are not commonly used as gemstones. Care should be handled with Amazonite as it is sensitive to pressure and can easily crack or chip.