(X = Mg, Fe or Ca) (Y = Al, (Fe3+ or Cr)
Natural garnets are mixtures of two or more of the following pure species: pyrope, almandine spessartine, uvarovite, grossular, andradite.
The best known type of garnet is the red semi-precious stone pyrope.
Rhodolite (pyrope and almandite mixture), has a beautiful bright violet-red color with few inclusions.
Tsavorite is a high lustre transparent lime- to emerald-green.