Color: Red, pink, violet, blue, green, aqua, orange, yellow, brown,
and black. Rarely white or colorless.
Hardness: 7.5 - 8
Luster: Vitreous, submetallic, or dull
Composition: Magnesium, iron, zinc, and/or manganese aluminum oxide
Cleavage: None, but may exhibit a slight octahedral parting
Streak: White
Fracture: Conchoidal
Chemical Formula: MgAl2o4
Transparency: Transparent to opaque
Uses: It is in great demand for jewelry all over the world because
of it’s many colors and hardness. It is a form of the ruby.
By: Alicia Anderson