PREHNITE


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Prehnite, Jaen, Spain

Chem : Ca2Al2Si3O10(OH)2 hydrous calcium aluminum silicate
Color : white, light green, gray, colourless,
Streak: white
Hardness : 6 - 6.5
Spec. Grav.: 2.9 - 2.95
Crystal : orthorhombic (often forms in lamellar aggregates) rarely good crystals
Fracture : uneven Cleavage : perfect 1 direction
Environ : forms in cavities in basaltic rocks, low temperatue hydrothermal fissures, and in limestone
Assoc : datolite, calcite, pectolite, quartz, zeolites
Locals : | New Zealand | India | Switzerland | Scotland | California, Colorado, Michigan/USA |
Misc : Named for the Dutch minerologist Hendrik von Prehn. It is sometimes facetted when crystals are found.

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more prehnite from Jaen, Spain

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Facilitates trustworthiness, truth, calmness, sincerity and sensitivity. Stone for dreaming and remembering. Facilitates contact with non-physical entites and extraterrestrials. Good for use in gridwork. Inspiration and prophecy.