Sillimanite
Specimen ID: CN-577-AU
Sillimanite : Al2(SiO4)O
Mindat locality:
weight: 24.58 carats
This gem has sharp cat’s eye on translucent brownish grey body.
Measurements: 18.23 x 15.27 x 10.79 mm.
Mineral(s)
3,420 gemdatids have been issued as of 12th Dec 2025 4:31 pm UTC