Holmium

1878-1879

Holmium

The book of science

Tom Sharp


Geneva, UppsalaMarc Delafontaine, Jacques-Louis Soret, Per Teodor Cleve elements

Holmium

Atomic number 67

Mineral species


We are not finished describing diminishing fractions of rare earths, but at least there are only a finite number of them.

Erbia (Jean Charles Galissard de Marignac’s oxide of erbium, which he had separated, along with yttria and terbia from Carl Gustav Mosander’s yttria) was eventually found to have contained erbium, thulium, holmium, dysprosium, scandium, ytterbium, and lutetium.

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