Cinnabar
✦ The Merchant's Red ✦ ⚠ Handle With Care
☠️ Don't Wear / Don't Make Elixirs🪶 Soft, Scratches Easily
Crystal lore: 💰 Abundance🦋 Transformation
HgS
Mercury sulfide mineral.
Properties
Scratches with a fingernail.
| Chemical formula | HgS |
|---|---|
| Elements | Hg, S |
| Crystal system | Trigonal |
| Mohs hardness | 2 – 2.5 |
| Density | 8 – 8.2 g/cm³ |
| Streak | — |
| Color | — |
| IMA symbol | Cin |
| Nickel–Strunz class | 2.CD.15a |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Care & Handling
- ☠️ Don't Wear / Don't Make Elixirs Mercury sulfide.
- 🪶 Soft, Scratches Easily Mohs 2 – 2.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.
This stone is in the Handle With Care collection; see the safety section below.
⚠ Handle With Care High caution
Why: Mercury sulfide (HgS), the main ore of mercury. Heating it releases toxic mercury vapour. Its dust and powder (historically the pigment vermilion) are toxic if swallowed or inhaled.
Safe handling: Wash your hands after handling. Don't lick it, put it in your mouth, or make elixirs with it. Don't cut or grind it. Display it out of reach of children and pets. Never heat it, and only polish it wet with protection, if at all.
Sources: Wikipedia: Cinnabar · ATSDR ToxFAQs: Mercury · Mindat: Cinnabar. General safety information only, not medical advice. More on safe handling.
🌍 Where it's found
- Type locality
- Notable source / deposit
- Country of origin
Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.
Learn more
- Cinnabar on Mindat.org
- Wikipedia article
- Wikidata item Q104614 (source of this page's data – you can correct it there)




