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spilite

Pronunciation: /ˈspʌɪlʌɪt, ˈspɪl-/

Definition of spilite

noun

[mass noun] Geology

an altered form of basalt, rich in albite and commonly amygdaloidal in texture, typical of basaltic lava solidified under water: [mass noun]:spilite occurs in pillow lavas [count noun]:the spilites in the Llanelwedd quarry