Nether Quartz

Nether Quartz is a Nether exclusive item obtained by mining Nether Quartz Ore. This item had been added in snapshot and will be released in the Redstone Update. Nether quartz are the essential ingredients to create redstone comparators and daylight sensors.

Trivia

 * Mining Nether Quartz is one of the fastest ways to get experience: it is very common in the Nether and provides large amounts of experience per vein.