Word Study
spherulite
CIDE DICTIONARY
spherulite, n. [Cf. F. sphérulite.].
A minute spherical crystalline body having a radiated structure, observed in some vitreous volcanic rocks, as obsidian and pearlstone. [1913 Webster]
OXFORD DICTIONARY
spherulite, n. a vitreous globule as a constituent of volcanic rocks.
Derivative
spherulitic adj.
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