Crystal opals are opals that are semi-translucent.
Crystal Opals can be yellow, sunset orange, blue, purple and red all the colors of the rainbow.
Blue crystal opals are the most common crystal opals. Rarer is orange, with sunset red the rarest fire crystal colour. Most opal fields produce crystal opal, as it is formed with no base (like potch or ironstone or sandstone) it is appreciated for its rarity and unique colour patterns.
Crystal opal is perfectfor rings, earrings, pendants, brooches, and necklaces. The phrase “crystal opal” basically implies to any class of opal such as semi-black, white, and black…