Facts
- Symbol
- Ir
- Atomic number
- 77
- Atomic mass
- 192.2 u
- Minerals
- 21
- Period
- 6
- Group
- 9
- Block
- d
- Melting point
- 2,739 °C
- Boiling point
- 4,403 °C
- Discovered
- 1803
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q877
Minerals containing this element · 21
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Changchengite | IrBiS | Cubic | 3.5 | 11.96 g/cm³ |
| Cuproiridsite | Cu(Ir³⁺Ir⁴⁺)S₄ | Cubic | — | — |
| Ferhodsite | (Fe,Rh,Ni,Ir,Cu,Pt)₉S₈ | Tetragonal | — | — |
| Gaotaiite | Ir₃Te₈ | Cubic | — | — |
| Garutiite | (Ni,Fe,Ir) | Hexagonal | 6.0 | — |
| Hexaferrum | (Fe,Os,Ru,Ir) | Hexagonal | — | — |
| Hexamolybdenum | (Mo,Ru,Fe,Ir,Os) | Hexagonal | — | — |
| Inaglyite | Cu₃Pb(Ir,Pt)₈S₁₆ | — | — | — |
| Irarsite | IrAsS | Cubic | — | — |
| Iridarsenite | (Ir,Ru)As₂ | Monoclinic | — | 10.90 g/cm³ |
| Iridium (native) | Ir | Cubic | — | — |
| Kashinite | (Ir,Rh)₂S₃ | — | — | — |
| Kingstonite | (Rh,Ir,Pt)₃S₄ | Monoclinic | 6.0 | — |
| Konderite | Cu₃Pb(Rh,Pt,Ir)₈S₁₆ | — | — | — |
| Kuvaevite | Ir₅Ni10S16 | Trigonal | — | — |
| Malanite | Cu(Pt³⁺,Ir³⁺)₂S₄ | Cubic | 5.0 | — |
| Mayingite | IrBiTe | Cubic | — | — |
| Rutheniridosmine | (Ir,Os,Ru) | Hexagonal | — | 20.49 g/cm³ |
| Shuangfengite | IrTe₂ | — | 3.0 | — |
| Tolovkite | IrSbS | Cubic | — | 10.26 g/cm³ |
| Xingzhongite | Pb²⁺Ir³⁺₂S₄ | Cubic | — | — |
Minerals named after it · 4
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Cuproiridsite | Cu(Ir³⁺Ir⁴⁺)S₄ | Cubic | — | — |
| Irarsite | IrAsS | Cubic | — | — |
| Iridarsenite | (Ir,Ru)As₂ | Monoclinic | — | 10.90 g/cm³ |
| Rutheniridosmine | (Ir,Os,Ru) | Hexagonal | — | 20.49 g/cm³ |