Crystallized prehnite
Weight 700 gr
| CHARACTERISTICS | |
| Weight | 700 gr |
| Size | 130x90x80 mm |
| Reference | 231011488 |
| Mineral | mineral species Prehnite |
| Category | Crystals and geodes |
| Group | Crystals on ganges |
| Country |
 Morocco
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Contractual photos showing the object you will receive when ordering. the photos were taken in order to obtain the most faithful possible rendering of the object.
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| Formula Ca2Al(AlSi3O10)(OH)2] PREHNITE | |||
| O | Oxygen | Other no metal | 44.51% |
| Si | Silicon | Metalloids | 21.31% |
| Ca | Calcium | Alkaline earth metal | 20.27% |
| Al | Aluminum | Poor metal | 13.65% |
| H | Hydrogen | Other no metal | 0.25% |
| 99.99% | |||
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The mineral Prehnite is a calcium aluminum silicate. It usually appears as pale green to yellow crystals, although its color can vary depending on its exact chemical composition. Prehnite is the first mineral to be named and described in South Africa, and it is notable for being one of the first minerals to crystallize during low-grade metamorphism. It has a hardness of 6 to 6.5 on the Mohs scale, which makes it relatively resistant to erosion and wear. It is generally translucent, with a glassy to pearly sheen. Prehnite is often used as an ornamental stone because of its beautiful color and shine.
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Delivery delay
Once the package is supported by the postal service, delivery times are those announced by the Post (letter followed or Colissimo followed). Parcel shipping from France.
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