Smithson Tennant FRS

Died aged c. 54

Smithson Tennant FRS (30 November 1761 – 22 February 1815) was an English chemist. He is best known for his discovery of the elements iridium and osmium, which he found in the residues from the solution of platinum ores in 1803. He also contributed to the proof of the identity of diamond and charcoal. The mineral tennantite is named after him.

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Commemorated on 1 plaque

Smithson Tennant FRS eminent Cambridge Professor of Chemistry who first isolated the rare noble metals osmium and iridium from native platinum deposits was born in this house on the 30th November 1761

Finkle Street, Selby, United Kingdom where they was born (1761)