Iridescent Shell is a common Miscellaneous item. Primarily of use for bartering or sale to Traders.
Though mounted on a pair of sturdy, rough feet, this iridescent shell seems to change shape depending on the light.
Properties
Miscellaneous Items
Rarity: Common
Weight: 0.2 kg / 0.4 lb
Price: 1 gp 
UID
LOOT_MF_Alchemy_Device_EUUID
2647a47b-575a-4b3d-b0e9-2c85cfa7437c
Where to find
Throughout the game as set-dressing and random loot, generally in areas of Illithid origin.