Microcline is a mineral series in the feldspar group. Amazonite is a light green to greenish blue variety of Microcline. Sometimes falsely referred to as Colorado jade or Pike's Peak jade, it often has grid-like white streaks and a faint sheen.
|Gemological Information for Microcline|
|Color||Light Green, Greenish Blue|
|Refractive Index||1.522 to 1.530|
|Hardness||6 to 6.5|
|Similar Stones||Aventurine Quartz, Chalcedony, Turquoise|
|Treatments||Wax Impregnation, Irradiation|
|Country of Origin||Brazil, Madagascar, Norway, US, Russia|
|Warm Soapy Water||Safe|
|Chemical Attack||Hydrofluoric Acid attacks quickly. Impurities may react to other acids|
|Heat Sensitivity||Can Crack, Fade and Cleave|
Gem Reference Guide, Los Angeles: Gemological Institute of America, 1988. Pp. 101-107.
Newman, Harold. An Illustrated Dictionary of Jewelry, New York: Thames and Hudson, 1981. Pp. 122.
Schumann, Walter. Gemstones of the World, New York: Sterling Publishing, Co., 1977. Pp. 164-167.