Synonyms:
fiery, igneous
Meaning: like or suggestive of fire; "a fiery desert wind"; "an igneous desert atmosphere"
Synonyms:
igneous, eruptive
Meaning: produced by the action of fire or intense heat; "rocks formed by igneous agents"
Synonyms:
igneous, pyrogenic, pyrogenous
Meaning: produced under conditions involving intense heat; "igneous rock is rock formed by solidification from a molten state; especially from molten magma"; "igneous fusion is fusion by heat alone"; "pyrogenic strata"
Usage examples
Basalt is a brownish rock of igneous origin.
This tract seemed crushed under a rain of enormous ejected rocks of trap, basalt, granite, and all kinds of igneous rocks.
These processes are known as METAMORPHISM, and the rocks affected, whether originally sedimentary or igneous, are called METAMORPHIC ROCKS.
The waters which deposit vein stones and ores are commonly hot, and in many cases they have derived their heat from intrusions of igneous rock still uncooled within the crust.
The most thoroughly metamorphosed rocks may sometimes be traced out into unaltered sedimentary or igneous rocks, or among them may be found patches of little change where their history maybe read.
The fact of change is seen in their hardness arid cementation, their more or less complete recrystallization, and their foliation; but the change is often so complete that no trace of their original structure and mineral composition remains to tell whether the rocks from which they were derived were sedimentary or igneous, or to what variety of either of these classes they belonged.