| Weight | 0,04 kg |
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| Dimensions | 45 cm |
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| Type | |
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| Origin | |
| SKU | 9318 |
Black Tourmaline Split Necklace
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Black Tourmaline Split Necklace from China
Tourmaline
Tourmaline is a group of borosilicate minerals with a complex chemical composition and a wide variety of colours. It occurs in virtually every colour of the rainbow, including pink, green, blue, black and multi-coloured combinations. This variety makes tourmaline one of the most popular gemstones in the jewellery world.
Tourmaline usually forms in pegmatites and metamorphic rocks. Major deposits include Brazil, Afghanistan, Mozambique, Nigeria and the United States. The chemical formula varies, but a general form is (Ca,K,Na)(Al,Fe,Li,Mg,Mn)₃(Al,Cr,Fe,V)₆(BO₃)₃(Si,Al,B)₆O₁₈(OH,F)₄. The hardness is between 7 and 7.5 on the Mohs scale.
Popular varieties include black tourmaline (schörl), pink tourmaline (rubellite), green tourmaline (verdelite) and watermelon tourmaline (pink interior, green rim).
Sources:
Mindat.org, Gemdat.org, Wikipedia - Tourmaline
Our necklaces are available in various designs, including faceted, ball, split and knotted necklaces. Currently, all necklaces in our range are 45 cm long, which corresponds to a standard wearing length for most neck sizes. The beads or slivers used vary in shape and finish, giving each necklace a unique character.
The bead size varies depending on the type of chain, from around 4 mm in finer models to around 8 mm in the somewhat coarser versions. For split necklaces, uneven pieces of stone are used, with the split used varying from 5 to 10 mm, giving a natural look. Knotted necklaces feature a knot between the beads, which is not only decorative but also contributes to the strength of the jewellery.
Keep in mind that not every variety is available in all designs or bead sizes.
