jadeberg
n.— «A brand new berg tends to be white in colour and as they age or depending on where they come from, they change colours and some of them end up what’s known as jadebergs—a beautiful jade green colour. They can have bands of vivid green and vivid white flowing through them—they’re really quite spectacular.» —“Sid of the Antarctic” by Judy Kelly ABC Tropical Queensland (Australia) Apr. 4, 2006. (source: Double-Tongued Dictionary)