Sillimanite
Specimen ID: D0-HLB-GH
Sillimanite : Al2(SiO4)O
Mindat locality:
weight: 21.14 carats
Dark brown with very sharp cat’s eye.
Measurements: 17.67 x 14.98 x 8.63 mm.
Mineral(s)
8,544 gemdatids have been issued as of 25th Oct 2025 5:55 pm UTC