radiolitic

radiolitic

[¦rād·ē·ō¦lid·ik]
(petrology)
Pertaining to the texture of an igneous rock, characterized by radial, fanlike groupings of acicular crystals, resembling sectors of spherulites.
Referring to limestones in which the components radiate from central points, with the cement making up less than 50% of the total rock.