Granite

Tuff and volcanic breccia are fragmental igneous rocks – they have formed from the explosive or mechanical fragmentation of volcanic igneous rocks. Most other igneous rocks are coherent – that is, they have crystallised from the magma as a solid rock. Granite is not a volcanic rock, but has formed deep within the Earth. Basalt is a volcanic igneous rock that has extruded as lava from a volcanic vent. Other volcanic igneous rocks include andesite, rhyodacite and rhyolite – to name a few.
All coherent lavas have equivalent fragmental variants. These are tuffs, breccias and other types. They have formed from ash derived from the frothing or explosive activity of a magma, or by normal eruption and chilling of a flowing lava with blocky breccias formed along the lavas margins.