Heliodor
Heliodor is a gemstone with the chemical formula Be3Al2Si6O18. It has a Mohs hardness of 7.5 - 8 and vitreous to greasy luster.
Heliodor properties
| Type | Gemstone |
|---|---|
| Chemical formula | Be3Al2Si6O18 |
| Mohs hardness | 7.5 - 8 |
| Luster | Vitreous to greasy |
| Typical colors | Yellow to golden yellow, sometimes with a greenish tint |
| Formation | Typically forms in granite pegmatites and metamorphic rocks |
| Rarity | 7 / 10 |
Mohs hardness 7.5–8 — hard
1 · Talc5 · Apatite10 · Diamond
Mineralyst
Wondering what you found?
Point your camera at any gemstone and Mineralyst identifies it in seconds — with guided follow-up questions for a confident answer.
- Build a collection
- Keep a wish list
- 5 photos per find
- Share with friends
