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.
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Garnet
Complex silicate minerals (e.g., Fe₃Al₂(SiO₄)₃ for Almandine)
Also known as: Almandine, Pyrope, Spessartine, Grossular, Andradite, Uvarovite
Spinel
MgAl₂O₄
Also known as: Magnesium aluminum oxide
Topaz
Al₂SiO₄(F,OH)₂
Also known as: Aluminum fluorosilicate
Tourmaline (Rubellite)
Complex borosilicate (e.g., Na(Li,Al)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄ for Elbaite)
Also known as: Elbaite (red variety)
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