Mooxx fat

Mooxx fat was a light substance that could agglomerate and create clouds in a planet's atmosphere. Warm climates on a Raspar system celestial body generated this phenomenon, which made the irrigation of arzen fields difficult.

Behind the scenes
The Mooxx fat was mentioned in a one-page weather forecast titled "Region 29: The West Fissure," written by Bob Carrau for the 1993 book Monsters and Aliens from George Lucas, a publication that collects concept designs and photographs from various George Lucas projects. Lucasfilm employee Leland Chee, who maintains the Holocron continuity database, has indicated that information contained in the book is non-canonical.