Tugtupite
| Colour | Pink, Red |
|---|---|
| Mohs hardness | 4 |
| Lustre | vitreous, greasy |
| Crystal system | Tetragonal |
| Transparency | translucent to opaque |
| Cleavage | none |
| Fracture | conchoidal, uneven |
| Chemical formula | Na 4 (AlBeSi 4 O 12 )Cl |
| Specific gravity | 2.36 |
What is Tugtupite?
Tugtupite is a beryllium aluminium tectosilicate. It also contains sodium and chlorine and has the formula Na4AlBeSi4O12Cl. Tugtupite is a member of the silica-deficient feldspathoid mineral group. It occurs in high alkali intrusive igneous rocks.
How to identify Tugtupite
- Lustre: vitreous, greasy.
- Hardness: Mohs 4 — soft; a knife will scratch it.
- Habit: Tetragonal crystal system.
Tugtupite in different forms
Stones often confused with Tugtupite
Frequently asked questions
How hard is Tugtupite?
Tugtupite is Mohs 4 on the hardness scale.
What colour is Tugtupite?
Tugtupite is typically pink, red (White, pink, crimson, blue, green).