igneous rocks
- Created by: emma may ellen
- Created on: 20-09-18 10:21
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- igneous rocks
- amygdaloidal
- adjective
- 1. a less common form of amygdaloid
- 2. a volcanic rock containing amygdales
- intrusive
- 2. noting or penetrating to plutonic rock
- 1. a rock having been formed between pre-existing rocks or rock layers while in a molten or plastic condition
- extrusive
- 1. tending to extrude
- 2. igneous rock formed from magma issuing from volcanos or cracks in the earth's crust
- Euhedral
- 1. a mineral crystal in a rock bounded by faces corresponding to its regular crystal form, not constrained by adjacent minerals
- subhedral
- mineral grains comprising igneous rocks having a partial or incomplete crystal face of form
- anhedral
- crystallography - a crystal having no plane of face
- porphyritic
- relating or denoting a rock texture containing distinct crystals or crystalline particles embedded in a compact groundmass
- phenocrysts
- a large or conspicuous crystal in a porphyritic rock, distinct from the groundmass
- vesical
- a small cavity in volcanic rock, produced by gas bubbles
- pluton
- a body or intrusive igneous rock
- amygdaloidal
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