![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/LvMS-Lvv.jpg/640px-LvMS-Lvv.jpg&w=640&q=50)
Volcanic glass
Product of rapidly cooling magma / From Wikipedia, the free encyclopedia
Volcanic glass is the amorphous (uncrystallized) product of rapidly cooling magma. Like all types of glass, it is a state of matter intermediate between the closely packed, highly ordered array of a crystal and the highly disordered array of liquid.[1] Volcanic glass may refer to the interstitial material, or matrix, in an aphanitic (fine-grained) volcanic rock, or to any of several types of vitreous igneous rocks.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/a/ad/LvMS-Lvv.jpg/640px-LvMS-Lvv.jpg)