| Name: | Lazurite Lzr |
| Specimens in Collection: |  #310: Lazurite Sar-e-Sang, Badakhshan, Afghanistan  #32: Lazurite Sar-e-Sang, Badakhstan, Afghanistan |
| IMA Chemistry: | Na7Ca(Al6Si6O24)(SO4)(S3)1-·H2O |
| Chemistry Elements: | The mineral Lazurite contains elements: Sodium (Na) Calcium (Ca) Aluminum (Al) Silicon (Si) Oxygen (O) Sulfur (S) Hydrogen (H) |
| Country of Type Locality: | Afghanistan / Russia |
| Year First Published: | 1891 |
| IMA Status: | Approved,Redefined |
| Status Notes: | Brögger W C, Bäckström H (1891) Die Mineralien der Granatgruppe, Zeitschrift für Krystallographie und Mineralogie 18, 209-276 Redefined with change in formula from Na_3_Ca(Si_3_Al_3_)O_12_S to Na_7_Ca(Al_6_Si_6_O_24_)(SO_4_)(S_3_)^1-^: Sapozhnikov A N, Tauson V L, Lipko S V, Shendrik R Y, Levitskii V I, Suvorova L F, Chukanov N V, Vigasina M F (2021) On the crystal chemistry of sulfur-rich lazurite, ideally Na_7_Ca(Al_6_Si_6_O_24_)(SO_4_)(S_3_)^–^·nH2O. American Mineralogist 106, 226-234 |
| Structural Group Name: | Cancrinite-sodalite, Sodalite |
| Fleischer's Group Name: | cancrinite-sodalite-sodalite subgroup |
| Crystal Systems: | cubic|orthorhombic, triclinic |
| Oldest Known Age: | 1600 Million Years Ago |
| Mohs Hardness: | 5.25 |
| Diaphaneity: | 1.0 |
| Specific Gravity: | 2.415 |
| More Info: | Search Wikipedia: Lazurite (Wiki) Search Mindat: Lazurite Search Web Mineral DB: Lazurite |