Lapis lazuli lot ( 12 - 11 x 9 - 8 x 5 - 4 mm \ 4,5 ct ) oval
12,50 €
incl. 25.5 % VAT
Cabochon Lapis lazuli gemstone. Lot, price per item in this batch.
Product identifier:
270118
Gemstone: Lapis lazuli
Weigh about: 4,5 ct per stone
Measurements about: 12 - 11 x 9 - 8 x 5 - 4 mm
Color: blue
Shape: cabochon, oval
Clarity: opaque
Origin:
Characteristic:
| Unlike most other gem materials, lapis lazuli is a complex aggregate of several minerals particularly hauyne, sodolite, nosean, and lazurite. The indefinite composition of the material affects it properties and the density ranges between 2.7 and 2.9. Lapis is also frequently found with inclusions of pyrite. The most famous locality for lapis is in North Eastern Afghanistan. |
| Known Facts | |
| Color Key: | Blue, greenish-blue, violet blue |
| Refractive Index: | 1.50 |
| Chemical Composition: | A complex aggregate |
| Hardness: | 5.5 |
| Density: | 2.7-2.9 |
| Crystal Group: | Not applicable |
| Ocurrence: | Afganistan, Pakistan, Chile, Russia, U.S.A., Angola, Burma |
| Lapis is tough enough to be used in many kinds of jewelry and is also often carved. | |
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