Moonstone look-alikes
Adularia (Potassium Feldspar)
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Open the appSeveral rocks and minerals can be confused with Moonstone. 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
Labradorite
Plagioclase Feldspar (Na,Ca)(Al,Si)AlSi2O8
Also known as: Spectrolite (a high-quality variety)
Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Also known as: Precious Opal, Common Opal
Chalcedony
Cryptocrystalline Quartz (SiO2)
Also known as: Agate, Jasper, Carnelian
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