mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O
AI-generated identification · may be incorrectHardness of 5-6 on the Mohs scale, vibrant blue-to-green color with dark webbed matrix veins, sub-vitreous to waxy luster, and triclinic crystal system.
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Physical properties
Hardness of 5-6 on the Mohs scale, vibrant blue-to-green color with dark webbed matrix veins, sub-vitreous to waxy luster, and triclinic crystal system.
Formation & geological history
Formed by the chemical action of descending water rich in copper and aluminum percolating through host rocks in arid environments.
Uses & applications
Widely utilized in high-end jewelry, carvings, and ornamental lapidary work.
Geological facts
Turquoise is one of the world's most ancient gem materials, historically prized by ancient Egyptians and Native Americans for amulets.
Field identification & locations
Easily identified by its characteristic robin's egg blue or greenish hue and webbed matrix; commonly sourced from arid mining regions.
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Gneiss or Schist
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
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral