This is a beautiful thumbnail size Spinel from Mahenge, Morogoro Region, Tanzania.
Crystal Dimension: 1.3 cm (0.53”) x 1.2 cm (0.46”)
Crystal Weight: 3.3 grams
Spinel is a mineral that owes its beautiful color to chromium, much like rubies and emeralds do.
The chemical formula for Spinel is:
MgAl₂O₄
