Mineralpedia Details for Indialite

Indialite

Formula: Mg₂Al₄Si₅O₁₈
Crystal System: Hexagonal
Crystal Habit: Hexagonal, Prismatic
Cleavage: None, None, None
Luster: Vitreous (Glassy)
Color: colorless, pale mauve
Streak: white
Class: Hexagonal - Dihexagonal Dipyramidal
Fracture: Conchoidal
Hardness: 7-7.5
WebMineral: View Indialite
Mindat: View Indialite

Indialite from Nickenicher Weinberg, Nickenich, Mayen-Koblenz dist., Eifel, Rheinland-Pfalz, Germany

Gorgeous tiny light blue hexagonal prismatic crystals to maybe 0.75mm at the most. There are a lot crystals in the tiny vesicles. Indialite is a high temperature mineral typicaly formed in volcanic and paralava environments such as burned shales above burning coal seams.