Amazonite
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Mineral NameAmazonite
Chemical FormulaKAlSi3O8
Mohs Hardness6
Crystal Systemtriclinic
Lustervitreous
Streak Colorwhite
Cleavageperfect on {001} and {010}
Fractureuneven
Specific Gravity2.56
Colorsblue-green, green, greenish-blue
Transparencytranslucent
Type LocalityTørdal, Telemark, Norway (among others)
Mineral Groupsilicates
Usesjewelry, ornamental, collector
Associated Mineralsquartz, albite, smoky quartz, topaz, beryl
Rarityuncommon
Description
A large, blocky specimen displaying a vibrant blue-green color, characteristic of the feldspar variety amazonite.
Geological Context
Amazonite is a variety of microcline feldspar that typically forms in granitic pegmatites, often in association with other rare minerals. Its distinctive color is attributed to small amounts of lead within its crystal structure.
