Definition of Phenocryst. Meaning of Phenocryst. Synonyms of Phenocryst

- A phenocryst is an early forming, relatively large and usually con****uous crystal distinctly larger than the grains of the rock groundm**** of an igneous...
- common in American usage, while amygdale is more common in British usage. Phenocryst – Crystal larger than the rock grains that surround it in an igneous rock...
- partially resorbed phenocrysts or an accessory phase in basalts generated at depth. Phlogopite mica is a commonly known phenocryst and groundm**** phase...
- crystals (phenocrysts) that formed before the extrusion event that brought the magma to the surface, embedded in a finer-grained matrix. These phenocrysts are...
- layers of materials. Porphyritic texture is one in which larger pieces (phenocrysts) are embedded in a background m**** made of much finer grains. Fragmental...
- crystals (phenocrysts) of plagioclase formed prior to the extrusion that brought the magma to the surface, embedded in a finer-grained matrix. Phenocrysts of...
- during eruption. Any larger crystals visible to the human eye, called phenocrysts, form earlier while slowly cooling in the magma reservoir. When igneous...
- difference in size between the tiny matrix crystals and the much larger phenocrysts. Porphyries may be aphanites or phanerites, that is, the groundm**** may...
- peppering the lighter color minerals. Occasionally some individual crystals (phenocrysts) are larger than the groundm****, in which case the texture is known as...
- finer-grained, often microscopic, crystals in which larger crystals, called phenocrysts, are embedded. This porphyritic texture is indicative of multi-stage...