17.54 ct. New Mexico Piemontite - The Gem Trader Rare Gems

17.54 ct. New Mexico Piemontite


  • Color: Dark Purplish-Red

  • Clarity: Opaque

  • Origin: Taos Co., New Mexico

  • Cut: Freeform Cabochon

  • Treatments: None

  • Measurements: 30.4 x 14.3 x 3.5 mm

Another very unusual gem material, this time from a limited find at a U.S. locality.  The name Piemontite is used to describe a Manganese rich variety of the mineral group Epidote.  The material is infrequently encountered and the color is quite striking.  A very rich, textured purplish-red.  Porphyry, the great imperial marble of ancient Rome, so valued for its color was at least partly colored by Piemontite.  If you are familiar with that material, no doubt you can see the resemblance.  Outstanding color.

$10 / carat - $175 total