allivalite

noun al·li·va·lite \ˈalə̇vəˌlīt\

Definition of allivalite

plural

-s

  1. :  a plutonic rock composed of anorthite and olivine in approximately equal amounts

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Origin and Etymology of allivalite

Allival Hill, Isle of Rum, Inner Hebrides, Scotland, its locality + English -ite


First Known Use: 1903


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