Cordierite of trapiche habit, named for its resemblance to flower petals. Generally altered largely or entirely to muscovite or "sericite" (which in the past has lead to confusion regarding the origin of the name, some people thinking it was derived from "sericite".
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
