Sir Henry Alexander Miers, FRS[1] (25 May 1858 – 10 December 1942) was a British mineralogist and crystallographer.

Born in Rio de Janeiro, Brazil, he was educated at Eton College and Trinity College, Oxford.

He was elected a Fellow of the Royal Society in 1896.

[1] He was Professor of Crystallography at the Victoria University of Manchester 1915–1926 and Vice-Chancellor of the University during the same years.

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