red spinel
C22306
concept
A red spinel is a hard, transparent to translucent magnesium aluminum oxide gemstone that exhibits vivid red hues often mistaken for ruby, commonly found in metamorphic and alluvial deposits.
Observed surface forms (1)
- variety of corundum ×2
Instances (3)
- Black Prince's Ruby
- Sapphire via concept surface "variety of corundum"
- Ruby (gemstone) via concept surface "variety of corundum"