Obzidian is an estate in Hegyalja. The cellar was named after finding a lot of obsidian stones in the field. 

This stone, which is also used in jewels, originated in the course of volcanic eruptions, after the hot lava cool and hardened. It is also known as volcanic glass. This moderate but also substantial flash is characteristic of the wines of the wine-cellars. Obzidian's aim is to produce wines of unique character which still appeal to a wide range of consumers.