Ruby look-alikes
Corundum (Al2O3) variety Ruby
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Open the appSeveral rocks and minerals can be confused with Ruby. 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
Red Spinel
Spinel (MgAl2O4)
Also known as: Balas Ruby
Garnet
Garnet Group (e.g., Almandine Fe3Al2(SiO4)3, Pyrope Mg3Al2(SiO4)3)
Also known as: Almandine, Pyrope
Red Tourmaline
Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)4)
Also known as: Rubellite
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