Sillimanite
Specimen ID: C1-0LU-ER
Sillimanite : Al2(SiO4)O
Mindat locality:
weight: 19.9 carats
It has a very distinct cat's eye that can even be seen from the back of the stone.
Size: 20.00 x 13.10 mm
Mineral(s)
3,420 gemdatids have been issued as of 12th Mar 2026 12:50 pm UTC