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Green prehnite - Congo - Kinshasa - 200402658

40
mm
55
gr
9
euros
Country Congo - Kinshasa
Reference
200402658

Size mm
40x35x30
Category
Raw rocks

Country
Congo - Kinshasa
Mineral species
Prehnite

Collection
97 - April 2020
Translate to :

Characteristics :

Density 2.80
Hardness 6.00 à 6.50
Group Silicate
Formula Ca2Al(Si3Al)O10(OH)2
Cleavage {001} distinct
Break Irrégulière
Chemical composition :

O Oxygen Other no metal 44.5%
Si Silicon Metalloids 21.3%
Ca Calcium Alkaline earth metal 20.27%
Al Aluminum Poor metal 13.64%
H Hydrogen Other no metal 0.25%
99.98%
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Your orders are usually shipped the day of the order and at the latest after 3 working days.

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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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Our refund and return policy lasts 14 days. You can read the details on the "return and delivery" page.

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