Prehnite Pseudomorphs

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Prehnite Pseudomorphs

 
Apophyllite and Gyrolite on Prehnite Pseudomorphs after Laumontite. These are all examples of a “Pseudomorph” this is a crystal that grows over the surface of another mineral, in these examples the Prehnite grew over Laumontite. The Laumontite has then dissolved away leaving the hollow crust of Prehnite.