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Lapis lazuli
The Lapis lazuli is mixture of different minerals. Most of it is a sodium aluminium silicate. Lapis lazuli light blue and dark-blue. Because of this color it is so famous. Parts of this mineral are always white and gold. The gold parts are Pyrite and the white parts are Calcite. Since Antiquity the lapis lazuli was often used in Anterior Asia. Vases and many other things were made of lapis lazuli. In The Middle Ages it was a coloring material, because it can be grind. In the Renaissance parts of furniture were made of lapis lazuli. Until today it is a liked precious stone, but it is not cheap. The best Lapis lazuli can be found in Afghanistan. Other areas with Lapis lazuli are in Russia and in Chile.
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Data about the Lapis lazuli
| | Chemical formula |
Na8[SO4|(AlSiO4)6] |
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| Mineral class |
silicates |
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| Crystal system |
cubical |
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| Hardness |
5.5 |
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| Density |
2.5 g/cm3 |
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| Color |
blue, light blue |
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| Line color |
light blue |
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| Gloss |
fat gloss |
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| Break |
shell |
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| Fissileness |
none |
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Author and Webmaster: Lukas Czarnecki
If you have got questions about lapis lazuli you can send me an e-mail under the following adress:
webmaster@hpwt.de
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Last Update: 03.11.2004