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rock > igneous rock

igneous rock
subject			fact

igneous rock	is a kind of rock
	has definition rock formed from the solidification of magma
	has composition silicates (with very few exceptions)
	has solidification mechanism
	has solidification timescale
rock	has part mineral
	has texture
	has genesis

Kinds of igneous rock :

• allotriomorphic rock (1 kind, 3 facts) - a rock with texture characterized by approximately equant anhedral grains
• differentiated meteorite (2 kinds, 3 facts)
• fractional crystallized rock (2 kinds, 4 facts) - a rock produced by differentiation in which part of the magma is crystallized and separated from further reaction with remaining liquid
• hypabyssal rock (3 facts)
• hyperleucocratic rock (1 kind, 4 facts) - very light colored rock with color index of 10 or less
• hypermelanocratic rock (4 facts) - very dark colored rock with color index greater than 90
• leucocratic rock (1 kind, 4 facts) - light-colored rock with color index between 11 and 50
• melanocratic rock (4 facts) - dark-colored rock with color index between 50 and 89
• plutonic rock (5 kinds, 4 facts) - cooling of magma in the interior of a planet or asteroid
• volcanic rock (5 kinds, 3 facts)