Spinel
compound
MgAl2O4
The gemstone mistaken for ruby in crown jewels for centuries — now a prized collector's stone
The famous 'Black Prince's Ruby' in the British Imperial Crown is actually a spinel.
Material
Gallery canvas set in a solid wood floating frame.
Frame
Brown
$70.00
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See it on your wall
Shown true-to-size - a 8×10in piece scaled against real furniture.
Crystallography
| Catalogue identity | Spinel — Pnam |
| Formula | MgAl2O4 |
| Crystal system | cubic |
| Space group | F d -3 m :2 |
| Lattice (a, b, c) Å | 8.15409, 8.15409, 8.15409 |
| Angles (α, β, γ) ° | 90, 90, 90 |
| Density (g/cm³) | 3.486 |
Structure data: Crystallography Open Database · Public domain (CC0)