The + of this product
Tourmaline is a mineral from the cyclosilicate family. With the chemical formula Al_6 Y_3 Na [(Si_6 O_{18}) (BO_3)_3 (OH, F)_4], with Y=Mg, (Fe, Mn) or (Li, Al), tourmaline crystallizes in the crystal system trigonal with rhombohedral network in rods or elongated needles with triangular section and curved faces. It has no cleavage and its fracture is conchoidal. Its name comes from “turmali” or “toromalli” in Sinhalese.
A tourmaline can be composed of several colors.
Tourmaline is a common mineral in igneous and metamorphic rocks, as well as high temperature hydrothermal veins. Mineral characteristic of pegmatites.
Tourmaline is used, among other things, in model making, particularly in arsenal model making, to blacken brass and give it the appearance of iron. It is also used in jewelry for colored varieties. Formerly used to clean pipes thanks to its piezoelectric effect. It also has pyroelectric properties, so when heated, its two ends build up opposite electrical charges, which can attract dust via static electricity.
Tourmaline is also used in mining exploration as a geological precursor to the formation of gold deposits. This mineral is also found in hair straighteners [ref. necessary]. Indeed, tourmaline has the property of producing negative ions when heated, negative ions eliminate static electricity.
Symbolic
Tourmaline weddings symbolize 52 years of marriage in French folklore
DESCRIPTION
Stones calibrated for jewelry at +/- 0.05 mm.
Average weight: 1.9 mm (0.03 cts) - 2.0 mm (0.03 cts) - 2.1 mm (0.04 cts) - 2.2 mm (0.04 cts) - 2.5 mm (0.06 cts) - 2, 8 mm (0.10 cts) - 3.0 mm (0.10 cts) - 3.2 mm (0.12 cts) - 3.8 mm (0.18 cts) - 4.0 mm (0.23 cts) -
Comes with certificate of authenticity
Important Information
Beautiful pink color without inclusion.
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Features
| Main color | Pink |
| Average Weight (Carats) | 0.03-0.23 ct |
| Form | Round |
| stone clarity | IF |
| Type of stone | Tourmaline |
| Chandelier | Excellent |
| Origin | Brazil |
| Hardness | 7-7.5 |
| Density | 3.0-3.2 |
| Refractive index | 1.62 - 1.68 |
| Treatment | Not heated |
| Certificate of authenticity | A Jewelry |
| Type of product | Mineral |
| Audience | Mixed |
| Mark | A Jewelry |
| Ref | TMPL_SKU005353 |
- Features
- Payment
- Return
- Legal Notice
Payment
- Features
- Payment
- Return
- Legal Notice
Return
Right of withdrawal: In accordance with the provisions of articles L. 120-20 and following of the Consumer Code, consumers have a right of withdrawal. Only products returned as a whole, in their complete original packaging and in perfect condition, may be subject to a right of withdrawal. The consumer may choose to request a credit note on the sums paid, the exchange of the product or a refund of the sums paid. In such a case, A BIJOUX must, within THIRTY DAYS of the exercise of the right of withdrawal, credit the consumer with a credit note or refund the sums paid. Returns / Exchanges: - Before any return, please obtain an agreement by email, in order to process the return under the best conditions. - An item can be returned to us within 15 days of its dispatch (postmark being taken) provided that it has not been worn and that it is sent back in its original packaging. - The return postage costs incurred by a return are the responsibility of A Bijoux after the customer's request. - We will exchange the item for another model. - A refund will be possible IN THE FORM OF A CREDIT.
