47

Natural lazurite stone

Weight 850 gr
CHARACTERISTICS
Weight 850 gr
Size 115x80x65 mm
Reference 211106641
Mineral mineral Lazurite
Category Decoration stones
Group Free forms
Country Country Madagascar Madagascar
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Formula (Na,Ca)8[Al6Si6O24](SO4,S,Cl)2] LAZURITE
O Oxygen Other no metal 38.53%
Si Silicon Metalloids 16.91%
Al Aluminum Poor metal 16.23%
Na Sodium Alkali metal 13.84%
Ca Calcium Alkaline earth metal 8.03%
Cl Chlorine Non-metal halogen
S Sulfur Other no metal
93.56%
Lazurite is a mineral from the silicate family, more precisely a sodium and sulfur aluminosilicate with sulfate groups. It generally occurs as blue granules in limestone, and is the main constituent of the semi-precious stone lapis lazuli. It crystallizes in the isometric system, but well-formed crystals are rare. Most often, it appears in the form of granular masses with a glassy sheen. Its hardness on the Mohs scale varies between 5 and 5.5, which makes it quite resistant. Its density is approximately 2.4 to 2.5 g/cm³. The intense blue of lazurite is due to the presence of S3- ions in the crystal structure. This mineral is mainly used as a pigment for paint and ceramics.

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Once the package is supported by the postal service, delivery times are those announced by the Post (letter followed or Colissimo followed). Parcel shipping from France.

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