Calcedoine from brazil
Weight 220 gr
| CHARACTERISTICS | |
| Weight | 220 gr |
| Size | 55x50x50 mm |
| Reference | 200502775 |
| Mineral | mineral Chalcedony |
| Category | Rocks and minerals |
| Group | Raw rocks |
| Country |
 Brazil
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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 SiO2] CHALCEDONY | |||
| O | Oxygen | Other no metal | 53.26% |
| Si | Silicon | Metalloids | 46.74% |
| 100% | |||
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Chalcedony is a mineral belonging to the microcrystalline quartz family, more precisely, it is a variety of silica, composed of silicon dioxide. It is characterized by its fibrous and compact crystalline structure, and its color can vary from translucent to opaque, with shades ranging from white to gray, including blue, brown and black. Chalcedony typically forms in voids of volcanic and sedimentary rocks, where it crystallizes from silica solutions. It is often associated with other minerals such as agate, jasper or opal. Due to its hardness and resistance to erosion, chalcedony has been widely used throughout history for making tools, ornaments and jewelry.
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Shipping time
Your orders are usually shipped the day of the order and at the latest after 2 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.
Payment methods
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Virement
Paypal
Visa
Mastercard
Amex
Chèque
Virement
