Zirconium (syn. Zr, equiv. 90) is the metallic constituent of the earth zirconia, which is found in association with silica in the minerals zircon and hyacinth, and is obtained only in Ceylon, one district of the Ural, and southern Norway. Berzelius obtained it in 1824 from Zirconia, which Klaproth had discovered in 1789.
Zirconium
Chambers's Encyclopaedia, Volume 10: Swastika to Zyrianovsk and Index, p. 802
Source scan(s): p. 0831