Subject |
has color index |
has grain size |
has definition |
has composition |
has shade |
has solidification mechanism |
has solidification timescale |
is a kind of |
leucocratic rock | 11 to 50 | | light-colored rock with color index between 11 and 50 | silicates (with very few exceptions) | light | | | igneous rock |
phaneretic rock | | discernable without a microscope | a rock whose grains can be discerned without the aid of a microscope | | | | | rock |
plutonic rock | | | cooling of magma in the interior of a planet or asteroid | silicates (with very few exceptions) | | cooling in deep underground chambers | very slow | igneous rock |
granite | 11 to 50 | discernable without a microscope | | silicates (with very few exceptions) | light | cooling in deep underground chambers | very slow | phaneretic rock |