Definition of Phenocrysts. Meaning of Phenocrysts. Synonyms of Phenocrysts

Here you will find one or more explanations in English for the word Phenocrysts. Also in the bottom left of the page several parts of wikipedia pages related to the word Phenocrysts and, of course, Phenocrysts synonyms and on the right images related to the word Phenocrysts.

Definition of Phenocrysts

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Meaning of Phenocrysts from wikipedia

- diameter. Phenocrysts below this level, but still larger than the groundm**** crystals, are termed microphenocrysts. Very large phenocrysts are termed...
- visibly crystalline, though not as large as the phenocrysts. The crystallization of the phenocrysts during fractional crystallization changes the composition...
- composition first. This forms large, well-shaped euhedral phenocrysts. If these phenocrysts are different in density to the remaining melt, they usually...
- a black appearance when seen in low light. It contains large (10 cm) phenocrysts of alkali feldspar. It is widely used in home renovations and landscaping...
- Rhomb porphyry is an example with usually large porphyritic rhomb shaped phenocrysts embedded in a very fine-grained matrix. Some of the best known trachytes...
- finer-grained, often microscopic, crystals in which larger crystals, called phenocrysts, are embedded. This porphyritic texture is indicative of multi-stage...
- gl**** in texture. They often contain clasts of other rocks and phenocrysts. Phenocrysts are crystals that are larger than the matrix and are identifiable...
- A vitrophyre is a porphyritic volcanic rock in which phenocrysts are embedded in a gl****y matrix. Vitrophyres are contrasted from typical porphyritic...
- separate calc-alkaline rocks with oligoclase phenocrysts (dacites) from rocks with orthoclase phenocrysts (rhyolites). Dacite consists mostly of plagioclase...
- solidifies. Most scoria is composed of gl****y fragments and may contain phenocrysts. A sample from Yemen was mainly composed of volcanic gl**** with a few...