Лапис лазули и стомана
Лапис лазули и стомана-love4844
Колие стомана 45 см
Лапис лазули 8 мм
Lapis lazuli is a sodium aluminium silicate with sulphur, chlorine hydroxyl, and variable inclusions of pyrite and white calcite.
The name means 'blue rock' and is always a brilliant blue with violet or greenish tints.
The rich blue colour is due to the laurel that is an essential component of this mineral. Small crystals of pyrite are always present in lapis lazuli and their brassy yellow colour is both attractive and diagnostic in distinguishing lapis lazuli from its blue cousin - sodalite, which lacks pyrite. The calcite produces white streaks in the lapis and too much calcite will lower the value of the stone.
Lapis lazuli has been mined for centuries from a locality still in use today in the Kokcha River Valley, Afghanistan. First mined 6000 years ago, the rock was transported to Egypt and present day Iraq and later to Europe where it was used in jewellery and for ornamental stone. Europeans even ground down the rock into an expansive powdered pigment for paintings called 'ultramarine'. Although no longer the only source of lapis, Afghanistan still produces the finest quality material. Other deposits of general lower quality are in Chile and Russia.
- Sold by: Love&Life
- Product Code: love4844
- Availability: Only 1 item left
- Delivery: This shop is currently delivering to United States from 7.15 $
- Expect by: betwеen 29 Jun 2021 and 02 Jul 2021
- Department: Pendants & Necklaces
- 15.23 $
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