Garnet Color

Uvarovite: dark green.
Grossular: colorless, white, gray, yellow, green, green (various shades: pale green apple, medium green apple, dark green), brown, pink, reddish, black.
Andradite: Yellow-green, green, brown-green, yellow-orange, brown, black, and black grayish. The color is associated with Ti and Mn’s content. The color is light if there is little of either element, and it may look grossly.
Pyrope: Purple red, pink-red, orange-red, raspberry, dark red. Note: Colorless pure pyrope; red colors are derived from Fe + Cr.
Almandine: red, brownish red, brownish-black, violet red.
Spessartine: red, reddish-orange, orange, yellow-brown, reddish-brown, blackish brown.
Malaia: various shades of orange, red-orange, peach, and pink.
Rhodolite: usually has a distinctive purplish color.

How many Garnets types?

There are two different groups and six different types. The two groups are Garnets of Calcium and Garnets of Magnesium.