noun
grossular; grossularite
A calcium-aluminum garnet mineral. Technical term used in geology and gemology.
灰礬柘榴石はカルシウムとアルミニウムを含むガーネットの一種です。
Grossular is a type of garnet containing calcium and aluminum.
The Japanese name 灰礬柘榴石 is a compound of 灰 (lime, calcium), 礬 (alum, aluminum), and 柘榴石 (garnet), reflecting its chemical composition.