amazonite rough natural specimen


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Amazonite is sometimes called “Amazon stone” it is a green variety of microcline feldspar.

Mineral Group  silicate
Composition  KAlSi3O8
dimension (cm)  4x4x2
weight (g)  40
Amazonite is a gemstone variety of green microcline. It is named after the Amazon River in Brazil, though surprisingly, no deposits have been found in that location. The story is that some green stones were found in the Amazon River area, but mineralogists believe that there is no green feldspar in that area, though there are deposits elsewhere in Brazil.
For many years, the source of its 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.
Amazonite is an inexpensive gemstone is most often used in beads and polished into cabochons and carvings.

Additional information

Weight 40 g
Dimensions 4 x 4 x 2 cm