mineral
Amazonite
Amazonite (Microcline variant: KAlSi3O8)
Hardness: 6-6.5 (Mohs), Color: turquoise blue/green with white streaks, 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: turquoise blue/green with white streaks, Luster: Vitreous to Pearly, Crystal structure: Triclinic, Cleavage: Perfect in two directions
Formation & geological history
Formed in plutonic rocks like granite and pegmatites through the cooling of magma. Its color is attributed to trace amounts of lead and water within the feldspar structure.
Uses & applications
Primarily used as a gemstone for jewelry, carvings, and as a popular mineral specimen for collectors due to its vibrant color.
Geological facts
Named after the Amazon River, although ironically it is not actually found there. It is known as the 'Truth Stone' in metaphysical circles.
Field identification & locations
Identify by its unique blue-green color and 'Schiller' effect (perthitic texture). Often found in Pikes Peak, Colorado, and Minas Gerais, Brazil.
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Metamorphic
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metamorphic
Gypsum (variety Selenite or Alabaster)
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Mineral
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Mineral/Rock
Granite
Granite (Phaneritic intrusive igneous rock)
igneous