Found randomly in loot containers and when mining.
It can also be found in:
- Castle Volkihar Keep, in a bowl on a dresser by a bed in a master bedroom.
- Riftweald Manor in Riften, in a bowl on the table in Mercer Frey's secret office in the tunnels under the manor.
- 2 in the Temple in Raven Rock on Solstheim, in front of the Shrine of Azura.