Corundum

Description
Corundum are a bluish/black stone outcrop. When a mature Corundum is broken it will drop 1-3 Obsidian Stone Block and 1-3 Corundum Fragment.

Source
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 * Naturally occuring on:
 * Pillars of Parun
 * The Motherlode
 * Glimmerglen
 * [[Image:Corundum.png|thumb|left|240px|A mature Corundum]]