Tourmaline
compound
NaMg3Al6B3Si6O31H4
A complex gemstone that comes in almost every colour of the rainbow
One of the most colourful minerals on Earth — a single crystal can display a dozen colours at once.
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 | Tourmaline — R3m |
| Formula | NaMg3Al6B3Si6O31H4 |
| Crystal system | trigonal |
| Space group | R 3 m :H |
| Lattice (a, b, c) Å | 15.951, 15.951, 7.24 |
| Angles (α, β, γ) ° | 90, 90, 120 |
| Density (g/cm³) | 2.994 |
Structure data: Crystallography Open Database · Public domain (CC0)