A nonmetallic mineral element. Symbol, P
A nonmetallic mineral element. Symbol, P
The residual emission of absorbed energy in the form of light by a substance, following exposure to incident radiation
A mineral containing phosphorous
A term for igneous rocks having a texture of grainy crystal visible to the naked eye
The sum of homogenous material within a larger heterogeneous material body
A rock metamorphically recrystallized
A vertical body of rock formed from lava and debris moving directly upward
A vacant space, hole or cavity in rock or soil
A tower, cone-like or pyramidal or pointed mass
A clay substance, such as kaolinite, suitable for use in the manufacture of porcelain