what is october birthstone

The birthstones for October are opal and tourmaline. Opal is the traditional birthstone for October, while tourmaline is the modern one. Opal is a gemstone that is well-known for its "play-of-color," or ability to shift hues. It is found in many different colors, including white, red, purple, and black. Tourmaline, on the other hand, is a gemstone that often has multiple colors in one crystal. It comes in many different varieties, including pink, red, green, blue, violet, and black.