From Guild Wars Wiki
|Type||Rare crafting material|
- Purchased from rare material traders.
- Random drop from creatures in The Fissure of Woe. For known creatures that drop Obsidian Shards see Category:Drops obsidian shard.
- Always drops from the Chest of Woe.
- Expert salvaged from:
- Obsidian is volcanic glass made of extruded lava high in silica that cools without an organized crystalline structure.