13.3" Green Prehnite Crystal Cluster on Rock - Morocco

Green Prehnite Crystal Cluster on Rock - Morocco #127505

This is a specimen of green prehnite still on the rock it was found on, collected in Morocco. The prehnite crystals formed in seemingly striated patterns, all bunched up next to each other with rectangular, "bowtie" crystal structures.

Prehnite is a calcium aluminum silicate with the chemical composition Ca2Al(AlSi3O10)(OH)2. It generally occurs as volcanic cavity infillings. It often displays colors between yellow and green, but colorless and blue specimens are not unheard of.

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SPECIES

Prehnite

LOCATION

Imilchil, Midelt Province, Morocco

SIZE

13.3 x 7.9 x 5.2"

13.3" Green Prehnite Crystal Cluster on Rock - Morocco

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