spilite

noun
spi·​lite | \ ˈspīˌlēt \
plural -s

Definition of spilite

: a very fine-grained to dense and greenish to gray-green extrusive rock of the gabbro family often vesicular or amygdaloid and generally free from phenocrysts that is composed essentially of the same minerals as diabase and shows an ophitic texture with augite grains between laths of basic plagioclase

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Other Words from spilite

spilitic \ ⸗ˈlitik \ adjective

History and Etymology for spilite

French, from Greek spilos spot, stain + French -ite

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Cite this Entry

“Spilite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spilite. Accessed 26 Jul. 2021.

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