Corundum look-alikes
Al2O3
Got a photo? Identify rocks instantly with the Rockby app
Open the appSeveral rocks and minerals can be confused with Corundum. 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
Spinel
MgAl2O4
Also known as: Magnesium Aluminum Oxide
Garnet
X3Y2(SiO4)3
Also known as: Various species (e.g., Almandine, Pyrope)
Topaz
Al2SiO4(F,OH)2
Also known as: Aluminum Fluorine Silicate
Explore Corundum
Identify rocks anywhere
Free on iOS, Android, and Web. Photo identification, full database, and your personal collection.