mineral
Amazonite
Microcline (KAlSi3O8) with trace lead (Pb)
AI-generated identification · may be incorrectHardness: 6-6.5 (Mohs), Color: Pale green to blue-green, Luster: Vitreous to pearly, Crystal structure: Triclinic, Cleavage: Perfect in two directions.
- Hardness
- 6-6
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Physical properties
Hardness: 6-6.5 (Mohs), Color: Pale green to blue-green, Luster: Vitreous to pearly, Crystal structure: Triclinic, Cleavage: Perfect in two directions.
Formation & geological history
Formed in plutonic igneous rocks such as pegmatites and granites. The green color is often caused by lead impurities and water in the feldspar structure.
Uses & applications
Primarily used as a gemstone for jewelry, ornamental carvings, and as a popular lapidary material for collectors.
Geological facts
Amazonite is often called 'Amazon Stone,' though it is not found in the Amazon River itself; it was named as such because similar green stones were found in that region.
Field identification & locations
Identify by its distinct green to turquoise color and characteristic white streaks (perthitic textures). Found in Colorado (USA), Brazil, and Russia.
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Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous