Henry James Brooke
Henry James Brooke (1771–1857) was an English crystallographer.
Brooke was the son of a broadcloth manufacturer, born in Exeter on 25 May 1771. He studied for the bar, but went into business in the Spanish wool trade, South American mining companies, and the London Life Assurance Association successively.
Brooke's hobbies were mineralogy, geology, and botany. His large collections of shells and of minerals were presented to the University of Cambridge, while a portion of his collection of engravings was given by him to the British Museum. He was elected F.G.S. in 1815, F.L.S. in 1818, and F.R.S. in 1819. He discovered thirteen new mineral species.
Brooke published a Familiar Introduction to Crystallography, London, 1823; and contributed the articles on "Crystallography" and "Mineralogy" in the Encyclopaedia Metropolitana, in which he first introduced six primary crystalline systems.