Parcelas agates are found in the Cerro El Oregano area, eight miles from Le Barón. Parcelas agates are seldom intensively coloured. Usually they have a grey to bluish tone, and are showing on this base a finelined white banding. Sometimes nodules with an intense shadow-effect were found.
Typically for Parcelas agate are little white dots in the banding.
More informations about the locality and the agate-formation is given by Brad L. Cross in his book “The Agates of Northern Mexico”, page 86