The following description of green garnet's metaphysical properties comes from CrystalVaults.Com. A full URL citation can be found after the crystal measurements, also found below.
"Grossular Garnet exemplifies hope, empowerment, and all things nurturing from Mother Earth. In shades as varied as a magnificent sunrise, to the lush and verdant greens of growth and renewal, it is a stone of prosperity and abundance; encouraging gratitude and service to others."
