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Definition of Phenocryst
1. n. One of the prominent embedded crystals of a porphyry.
Definition of Phenocryst
1. Noun. (minerology) any relatively large crystal embedded in a more fine-grained or glassy igneous rock ¹
¹ Source: wiktionary.com
Definition of Phenocryst
1. [n -S]
Lexicographical Neighbors of Phenocryst
Literary usage of Phenocryst
Below you will find example usage of this term as found in modern and/or classical literature:
1. Contributions to the Pre-Cambrian Geology of Northern Michigan and Wisconsin by Rolland Craten Allen, L. P. Barrett, Ermine Cowles Case, W. I. Robinson (1915)
"The plate exhibits a large phenocryst of plagioclase showing granulation and
fracturing. The ground- mass is a schistose matte of green hornblende needles ..."
2. Reports by Missouri Bureau of Geology and Mines (1881)
"... in which the quartz of the ground- mass for a considerable distance is oriented
with the central phenocryst.and with ... Quartz phenocryst with ..."
3. The Tertiary Igneous Rocks of Skye by Alfred Harker (1904)
"The intergrowth is most regular and most minute in contact with the phenocryst,
while outwards the border usually passes by gradations into a coarser and ..."
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