Feldspar look-alikes
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8
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Open the appSeveral rocks and minerals can be confused with Feldspar. 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
Quartz
SiO2
Also known as: Silica
Nepheline
(Na,K)AlSiO4
Also known as: Nephelite
Scapolite
(Na,Ca)4[(Al,Si)2Si2O8]3(Cl,CO3,SO4)
Also known as: Wernerite
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