nBrookite(Min) A mineral consisting of titanic oxide, and hence identical with rutile and octahedrite in composition, but crystallizing in the orthorhombic system.
Century Dictionary and Cyclopedia
nbrookiteOne of the three forms in which titanium dioxid occurs in nature. It is found in orthorhombic crystals of a brown or yellow color to black, and adamantine to metallic luster. Jurinite is another name for the same mineral. Arkansite is an iron-black variety from Magnet Cove, Arkansas.
Webster's Revised Unabridged Dictionary
Named from the English mineralogist, H. J. Brooke,
Titanium, in the minerals known as octahedrite and brookite, is found in alluvial deposits in New South Wales, in conjunction with diamonds.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 8" by Various