igneous rocks / minerals are formed by magma / lava cooling / crystallizing
volcanic_rock is igneous_rock. rocks is inanimate_mineral_objects. igneous_rock is stone. batholith is igneous_rock. lava is volcanic_rock. igneous_rock is solid_ground. rocks has minerals_like_gold magma is rock. igneous_rock is rock. rock is natural_material_consisting_of_minerals.