1878-1879 Holmium

The book of science

Tom Sharp

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


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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