poikilitic
/ˌpɔɪkɪˈlɪtɪk
/adjective Geology
Relating to or denoting the texture of an igneous rock in which small crystals of one mineral occur within crystals of another.In the southern Siniscola schists, chloritoid and poikilitic garnet porphyroblasts have overgrown the earliest cleavage....
- A volatile-rich metasomatic phase produced late growth of poikilitic K-feldspars, layered pegmatites and aplite dikes and an explosive network of dykes emanating out of the top of the Nuptse-Everest leucogranite.
- Collected from the eastern half of the Orlica-Snieznik Dome near the border with the Keprm'k dome, sample SZ-IOa is a well-foliated garnet-zone gneiss that contains minor poikilitic garnet with fractures containing pinite.
Origin
Mid 19th century: from Greek poikilos 'variegated' + -ite1 + -ic.
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- the
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