CHARACTERISTICS | |
Weight | 850 gr |
Size | 115x80x65 mm |
Reference | 211106641 |
Mineral | mineral Lazurite |
Category | Decoration stones |
Group | Free forms |
Country | Madagascar |
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.
|
Shipping time
Your orders are usually shipped the day of the order and at the latest after 2 working days.
Delivery delay
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.
Returns and Refund
Our refund and return policy lasts 14 days. You can read the details on the "return and delivery" page.