harlequin opal: a reddish opal with small patches of brilliant color
opal: a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
pseudohermaphrodite: someone having external genitalia of one sex and internal sex organs of the other sex; not a true hermaphrodite because there is no ambiguity in the sex of the external genitalia and hence no question about gender at birth