Rainbow moonstone and moonstone are fascinating gemstones that belong to the same family of minerals called feldspar. Despite their similar appearances, they have unique physical and metaphysical properties. When it comes to their optical characteristics, both rainbow moonstones and blue moonstones share a common trait, which is the dazzling blue flashes they display when viewed from certain angles. Nonetheless, rainbow moonstone has a distinguishing feature that sets it apart from the others, as it can exhibit an array of additional hues such as yellow, orange, and purple. This feature makes it a popular choice among gemstone enthusiasts who are looking for a distinctive and multi-colored gemstone that can add a touch of vibrancy and excitement to their jewelry collection.