What is Amazonite?


Amazonite is a green variety of microcline feldspar that is named after the Amazon River in Brazil, although no deposits have been found there. It’s primarily found in Russia, Madagascar, and Colorado. Amazonite has a soothing blue-green color that has made it a popular choice for jewelry and decorative items.

Amazonite is a blue-green stone that belongs to the feldspar family. Its soothing colors and lustrous appearance make it a popular choice for jewelry and decorative items. It’s often used in necklaces, bracelets, and earrings, and is sometimes used to make beads.

Gemstone Properties

Chemical ClassificationInorganic - Tectosilicate
ColorRanges from light green to blue-green, sometimes with white streaks.
OccurrenceRussia, Madagascar, and Brazil.
FormationAmazonite forms in granite and pegmatites.
CleavagePerfect in two directions
Mohs Hardness6 to 6.5.
Specific Gravity2.56-2.58.
Diagnostic PropertiesGreen to blue-green color.
Chemical CompositionKAlSi3O8
PleochroismNot observed in amazonite.
Crystal SystemTriclinic
Optical PropertiesBiaxial (+)
Refractive Index1.522 - 1.530
2V angleMeasured: 70° to 75°
DispersionNot typically noted for amazonite as it's not a key feature of this stone.