Bloodstone (Heliotrope) and Prehnite look-alikes

Heliotrope (a variety of Chalcedony) and Prehnite

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Several rocks and minerals can be confused with Bloodstone (Heliotrope) and Prehnite. 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

Jasper

SiO2

Also known as: Various names depending on color/pattern

Epidote

Ca2(Al,Fe)3(SiO4)3(OH)

Also known as: Pistacite

Serpentine

Mg3Si2O5(OH)4

Also known as: Antigorite, Chrysotile, Lizardite

Explore Bloodstone (Heliotrope) and Prehnite

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Full guide to Bloodstone (Heliotrope) and Prehnite

Identification

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