Prehnite Casts After Laumontite
John Betts - Fine Minerals
Green Prehnite pseudomorph casts after Laumontite crystals up to 6 cm long.
The Laumontite formed first, was overgrown with Prehnite, then the Laumontite dissolved leaving the Prehnite in the shape of Laumontite. Ex. Frank Jaeger collection #391.
Bombay Quarry, Mumbai (Bombay), Maharastra, India
12 x 9 x 5 cm.