Calomel is a mercury chloride mineral with formula Hg2Cl2 (see mercury(I) chloride). It was used as a medicine from the 16th to early 20th century, despite frequently causing mercury poisoning in patients.
| Kadyrelite | |
|---|---|
| General | |
| Category | Mineral |
| Formula (repeating unit) | Hg 4(Br,Cl)2 O |
| IMA symbol | Kad |
| Crystal system | Isometric |
| Identification | |
| Color | Bright to dull orange |
| Cleavage | None |
| Tenacity | Brittle |
| Mohs scale hardness | 2.5–3 |
| Luster | Adamantine, Vitreous |
| Streak | Orange-yellow |
| Specific gravity | 8.79 |
Kadyrelite is a mineral with the chemical formula Hg 4(Br,Cl)2 O discovered in 1987.
Calomel is a mercury chloride mineral with formula Hg2Cl2 (see mercury(I) chloride). It was used as a medicine from the 16th to early 20th century, despite frequently causing mercury poisoning in patients.