spher·u·lite (sfîr y -l t , --lt, sf r-)n. A small, usually spheroidal body consisting of radiating crystals, found in obsidian and other glassy lava rocks. spher u·litic (-l tk) adj. |
spherulite [ˈsfɛrʊˌlaɪt]
n
(Earth Sciences / Minerals) any of several spherical masses of radiating needle-like crystals of one or more minerals occurring in rocks such as obsidian
spherulitic [ˌsfɛrʊˈlɪtɪk] adj
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