Apophyllite with Stilbite and Epidote look-alikes
KCa4(Si8O20)(OH,F)·8H2O (Apophyllite), NaCa4(Si27Al9)O72·28H2O (Stilbite), Ca2(Al,Fe3+)3(SiO4)3(OH) (Epidote)
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Open the appSeveral rocks and minerals can be confused with Apophyllite with Stilbite and Epidote. 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
Heulandite with Stilbite
(Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O (Heulandite), NaCa4(Si27Al9)O72·28H2O (Stilbite)
Also known as: Zeolite Assemblage
Prehnite with Epidote
Ca2Al(AlSi3O10)(OH)2 (Prehnite), Ca2(Al,Fe3+)3(SiO4)3(OH) (Epidote)
Also known as: Hydrothermal Assemblage
Quartz with Epidote
SiO2 (Quartz), Ca2(Al,Fe3+)3(SiO4)3(OH) (Epidote)
Also known as: Hydrothermal Vein
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