-40%

MINERAL SPECIMEN OF FIBROUS DUMORTIERITE FROM SAN DIEGO CO., CA

$ 9.49

Availability: 100 in stock
  • Condition: Used
  • All returns accepted: ReturnsNotAccepted
  • Modified Item: No

    Description

    THIS IS A MINERAL SPECIMEN OF
    PURPLE, FIBROUS, CRYSTALLINE DUMORTIERITE IN A QUARTZ MATRIX.
    THE SPECIMEN IS
    APPROXIMATELY 9 X 6 X 6 cm
    .  IT
    WEIGHS 353.1 gm.
    THE SPECIMEN IS FROM
    DEHESA, SAN DIEGO CO., CALIFORNIA
    . THE SPECIMEN WAS COLLECTED IN 1960.  DUMORTIERITE IS RARELY FOUND CRYSTALLIZED.  THESE CRYSTALS ARE IN NEEDLE LIKE PARALLEL AND DIVERGENT SPRAYS.  IT IS A VERY ATTRACTIVE EXAMPLE.  DUMORTIERITE WAS USED TO MAKE THE PORCELAIN INSULATORS ON SPARK PLUGS.  THE SPECIMEN LOOKS BETTER INM YOUR HAND THAN IT DOES IN THE PICTURES.  SEE PICTURES.  I WILL COMBINE SHIPPING WHEN POSSIBLE.  THANKS FOR LOOKING.