Opal Powder  

 

Used to make Misty Glaze in a Glaze Mortar, and the Misty Glaze is used to make a Crucible of Escape. Individual information on them:

1) Misty Glaze - crafted in a Glaze Mortar, non-tradeskill combine: Opal Powder, Kunzar Glue, Sarcoscypha Fungus. Used for Crucible of Escape pottery combine.

2) Glaze Mortar - bought in the Plane of Knowledge, from a vendor near the small bank I think. Name of merchant starts with a "D" if memory serves.

3) Crucible of Escape - Pottery, trivial of 102 - has a clicky lessor succor for druids and wizards, no mana required.