Ruby look-alikes
Corundum (Al₂O₃) var. 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: Spinel
Red Garnet
Garnet Group (e.g., Almandine Fe₃Al₂(SiO₄)₃, Pyrope Mg₃Al₂(SiO₄)₃)
Also known as: Almandine, Pyrope
Red Tourmaline
Elbaite (Na(Li₁₅Al₁₅)Al₆(Si₆O₁₈)(BO₃)₃(OH)₄) var. Rubellite
Also known as: Rubellite
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