(of igneous rocks) light-coloured because of a low content of ferromagnesian minerals
Word origin
C20: from German leukokrat, from leuco- + Greek kratein to rule
leucocratic in American English
(ˌluːkəˈkrætɪk)
adjective
Geology(of a rock)
composed mainly of light-colored minerals
Word origin
[leuco- + -crat + -ic]
Examples of 'leucocratic' in a sentence
leucocratic
Later, the porphyritic microadamellite crystallised in three petrogenetic facies: biotitic, leucocratic and turmaline.
Guijarro, J., Moreno, A., Astudillo, J., Gutiérrez, A. 1984, 'Estudio petrológico del plutón de Trujillo (Cáceres. España)', Estudios Geologicoshttp://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/643/669. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)