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TYPE OF MINERAL
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92% positive
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235
grams
100
mm
15€
euros
Reference
200502735
Size mm
100x70x45
200502735
Size mm
100x70x45
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Opal is a mineral composed of hydrated silica. Its water content is usually between 3 and 9%, it can go up to 20% depending on the varieties of opal. The Sanskrit word upala meaning precious stone is at the origin of the term opal, this word is also at the origin of the Greek opallion and the Latin opalus. Opal may contain fossilized organisms. The formation of opal depends on alternating wet / dry periods in the chemical silica cycle.
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Shipping time
Your orders are usually shipped the day of the order and at the latest after 3 working days.
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.
Returns and Refund
Our refund and return policy lasts 14 days. You can read the details on the "return and delivery" page.
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