plutonic

However, Page Six reports that the duo’s relationship is plutonic and not romantic.

A little examination of the material should tell, to even the novice, whether or not the substance is of plutonic origin.

The first of these divisions represents the plutonic, intrusive or subsequent phase of eruptivity; the second marks the volcanic, interstratified or contemporaneous phase.

Mounting high right ahead of us at last was a mass of granite boulders, with broad smooth surfaces, having the structure of gigantic masonry in ruin which weathered plutonic rock so often assumes.

It is covered by a plastic white or yellowish clay and clay marl, with intervening beds of quartz sandstone, formed, like the clay, by the disintegration of the plutonic rock.