The so-called almandine garnets of the jeweler are frequently of the almandite class and tend to purplish red.
almandite usually occurs in metamorphic rocks, such as gneisses or mica schists; also in granite.
Two varieties of garnet, almandite and pyrope, may exhibit the dark blood-red color especially ascribed to garnet.
almandite garnet, the "almandine" of the jeweler is less abundant than pyrope, when of gem quality.
Pyrope, the magnesian variety of garnet, does not differ much in color from almandite.
Both are dark red, but while almandite tends toward a violet tone, pyrope shades toward yellow.