This is an ancient stone cutting center in Turkey. This garnet also has a star variety. The color is caused by iron. Rhodolite is the purple to purplish red mixture of pyrope and Almandite. The name rhodon is the Greek for rose and lithos for stone.
Color is from iron.
Spessartite garnets range from yellowish orange to red-orange. This gems color is caused by manganese and iron. Click to enlarge Garnets of another color. As I said earlier garnets come in many colors. Grossularite takes its name from grossularia which is the genus name for gooseberry.