Igneous rock texture refers to ? size

Volcanic rocks containing mineral grains of pretty much equal sizeare said to have an "equigranilartexture".  

Explanation:

It is arranged into numerous sub textures depending on their characters. Panidiomorphicrefers to a texture in which, hypothetically all the part mineral grains are subhedral.Examples of meddling molten rocks are diorite, gabbro, stone, pegmatite, and peridotite. Extrusive volcanic rocks eject onto the surface, where they cool rapidly to frame little crystals.These rocks incorporate andesite, basalt, dacite, obsidian, pumice, rhyolite, scoria, and tuff.