Turquoise and Tiger's Eye look-alikes
Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Tiger's Eye (fibrous crocidolite replaced by chalcedony)
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Open the appSeveral rocks and minerals can be confused with Turquoise and Tiger's Eye. Below are documented look-alikes and the features that tell them apart. Never rely on a single feature. Always check multiple properties.
Similar rocks to compare
Chrysocolla
CuSiO3·nH2O
Also known as: Gem silica
Variscite
AlPO4·2H2O
Also known as: Utahlite
Hawk's Eye
Fibrous crocidolite replaced by chalcedony (less oxidized than Tiger's Eye)
Also known as: Blue Tiger's Eye
Serpentine
(Mg,Fe)3Si2O5(OH)4
Also known as: New Jade
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