Name: | Afghanite Afg |
Specimens in Collection: | |
IMA Chemistry: | (Na,K)22Ca10(Si24Al24)O96(SO4)6Cl6 |
Chemistry Elements: | The mineral Afghanite contains elements: Sodium (Na) Potassium (K) Calcium (Ca) Silicon (Si) Aluminum (Al) Oxygen (O) Sulfur (S) Chlorine (Cl) |
Country of Type Locality: | Afghanistan |
Year First Published: | 1967 |
IMA Status: | Approved |
Status Notes: | Bariand P, Cesbron F, Giraud R (1968) Une nonvelle espece minerale: L’afghanite de Sar–e–Sang, Badakhshan, Afghanistan–Comparaison avec les mineraux du groupe de la cancrinite, Bulletin de la Société Française de Minéralogie et de Cristallographie 91, 34-42 Chemical formula revised: Ballirano P, Bonaccorsi E, Maras A, Merlino S (1997) Crystal structure of afghanite, the eight-layer member of the cancrinite-group: evidence for long-range Si,Al ordering, European Journal of Mineralogy 9, 21-30 |
Structural Group Name: | Cancrinite-sodalite |
Fleischer's Group Name: | cancrinite-sodalite |
Crystal Systems: | hexagonal |
Oldest Known Age: | 1600 Million Years Ago |
Mohs Hardness: | 3.5 |
Diaphaneity: | 3.0 |
Specific Gravity: | 2.6 |
More Info: | Search Wikipedia: Afghanite (Wiki) Search Mindat: Afghanite Search Web Mineral DB: Afghanite |