Synonym: Amazonstone.
Name: the Amazon River.
Clades: Potassium feldspars;
Tectosilicates.
Chemical: KAlSi3O8.
Crystal system: Triclinic.
Region: Amazo, Egypt, Mesopotamia.
Color: green, greenish-blue.
Use: as a gemstone.
MineralogyAmazonite is a variety of the potassium feldspar called microcline.
It is polymorphic to orthoclase.
It is a beautiful crystallized variety of a bright verdigris-green, possessing a lively green colour.