| 释义 |
brook·ite
\ˈbru̇ˌkīt\ noun
(-s)
Etymology: Henry J. Brooke died 1857 English mineralogist + English -ite
: a mineral consisting of titanium dioxide TiO2 and identical in composition with rutile and octahedrite but occurring in orthorhombic crystals commmonly brown and translucent or brown to black and opaque (hardness 5.5-6, sp.gr. 3.87-4.08) |