Grossular Garnet is a variety of Garnet that comes in a wide variety of colours. Interestngly it can be green, orange or even colorless. The orange variety is known as Hessonite and it has its own category here on Gem Rock Auctions. The vibrant green stones also have their own name. It is known as Tsavorite. It is the stones that have a soft minty green colour that do not have a specific name. They are simply called mint green grossular garnets.