Amazonite Colored Gemstones - The Ross Jewelry Company

Amazonite Gemstones

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Brazilian Amazonite

Brazilian Amazonite
Amazonite Loose Colored Gemstones at The Ross Jewelry Company in Atlanta, Georgia.

Amazonite or Amazonstone

Amazonite is a gem variety of microcline feldspar, being potassium aluminium silicate. As in the pictures above, it is usually polished as a cabochon.

In common with other feldspar gems, it displays a schiller of colored light, caused by inclusions or its crystal structure creating interference effects of light. It is sometimes called amazonstone or amazon stone, possibly because one of its sources is Brazil, although not from the Amazon regions.

Coloration
Amazonite varies from bright verdigris green to a bluish green.

Technical Characteristics

Chemical Composition: KAlSi3O8 - Potassium Aluminium Silicate
Hardness: 6 - 6.5
Specific Gravity: 2.56 - 2.58
Refractive Index (R.I.): 1.522 - 1.530
Bi-refringence: 0.008
Optic Sign: Negative
Optical Character: Biaxial
Crystal Structure: Triclinic

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