Holmium
Holmio (Ho, Z=67)
- Date
- 1878 · confidence high
- Place
- Uppsala, Sweden
- Credited to
- Per Teodor Cleve (and Marc Delafontaine and Jacques-Louis Soret)
- People
- 👤 Jacques-Louis Soret1827–1890👤 Marc Delafontaine1838–1911👤 Per Teodor Cleve1840–1905
- Field
- Matter & energy
What was discovered
Delafontaine and Soret saw its spectral lines in Geneva in 1878; Cleve isolated it from erbia in 1879 and named it after Stockholm (Holmia).
Priority shared between Geneva and Uppsala.
What it led to
- Holmium lasers for urological surgery
- Highest magnetic moment of all elements: magnet poles
- Calibration of spectrophotometers
Built on
- Mosander's erbia
- Spectroscopy
Made possible
- Holmium laser (Ho:YAG)
- Holmium oxide filter