Potassium Feldspar look-alikes
Potassium Feldspar (K-feldspar)
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Open the appSeveral rocks and minerals can be confused with Potassium 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
Plagioclase Feldspar
(Na,Ca)Al(Si,Al)Si2O8
Also known as: Na-Ca Feldspar
Quartz
SiO2
Also known as: Silica
Nepheline
(Na,K)AlSiO4
Also known as: Nephelite
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