Prehnite

Prehnite is a hydrous inosilicate of calcium and aluminum. it was discovered in Cape of Good Hope, eastern Cape Province in South Africa in 1788 and named in honor of Colonel Von Prehn. 

The main producers are Mali, USA, Australia, China and Canada. It is generally green, sometimes green-yellow and rarely colourless, white or gray. Prehnite has a pearly to waxy or greasy texture and can be associated with Datolite, Calcite, Epidote or Apophyllite. 

In Mali, numerous Prehnite deposits were found in the late 1980's, many of them in the vicinity of the Bandougou village, some 400 km west of Bamako. Most Prehnite from that area comes in nodular masses and spheres of yellowish green to bluish green. They are often associated with one to five centimeter prismatic dark green to black Epidote. 

 

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Prehnite-01- Nioro Area Mali
Botryoidal green Prehnite, waxy and translucent from a find in 2006 in the Nioro ..
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Prehnite-02- Bendougou Mali
Botryoidal Prehnite, waxy and translucent.No damage. From Bendougou, Kayes Region, Mali. ..
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Ex Tax: $0.00 USD
Prehnite-03- Bendougou Mali
This small piece from Bendougou, Kayes Region, Mali is a real jewel. It is compo..
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Prehnite-04- Bendougou Mali
A large ball of Prehnite with interlocking crystals of black Epidote from B..
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Prehnite-05- Bendougou Mali
Translucent green Prehnite balls sitting on Epidote .The sample is from Ben..
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Prehnite-06- Nioro Area Mali
Botryoidal green Prehnite, waxy and translucent from a find in 2006 in the Nioro ..
$0.00 USD
Ex Tax: $0.00 USD
Prehnite-07- Bendougou Mali
Two balls of green Prehnite with penetrating Epidotes from Bendougou, Kayes..
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Prehnite-08- Bendougou Mali
Beautiful specimen of translucent clusters of apple-green Prehnite with interlocking lustr..
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Prehnite-09- Bendougou Mali
A superb specimen made out of clusters of translucent apple-green Prehnite and jet black&n..
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Prehnite-10- Bendougou Mali
Pretty miniature sample a green translucent Prehnite and doubly terminated lustrous E..
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Prehnite-11- Bendougou Mali
Green Prehnite balls sitting on Epidote crystals from Bendougou, Kayes Regi..
$0.00 USD
Ex Tax: $0.00 USD
Prehnite-12- Nioro Area Mali
Botryoidal green Prehnite, waxy and translucent with unknown black needles&..
$0.00 USD
Ex Tax: $0.00 USD
Prehnite-13- Bendougou Mali
Unusual bunch of grapes - looking cluster of Prehnite balls sitting on Epidote crysta..
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Prehnite-14- Bendougou Mali
Aesthetic specimen composed of apple-green translucent Prehnite balls and lustrous&nb..
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Prehnite-15- Bendougou Mali
Specimen collected at Bendougou, Kayes Region, Mali. It consists of small balls of translucent&..
$0.00 USD
Ex Tax: $0.00 USD