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LARGE MINERAL SPECIMEN OF MUSCOVITE FROM RIO ARRIBA CO., NEW MEXICO

$ 6.85

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

    Description

    THIS IS A LARGE MINERAL SPECIMEN OF A
    PARTIAL CRYSTAL OF MUSCOVITE WITH NO MATRIX
    .
    THE SPECIMEN IS
    APPROXIMATELY 8 X 7 X 1.5 cm
    .  AND
    WEIGHS 173.2 gm.
    THE SPECIMEN IS FROM THE
    PINO ALTO MINE, PETACA DISTRICT, NEAR PETACA, RIO ARRIBA CO., NEW MEXICO
    .  THIS PIECE FORMED BETWEEN AND WAS CONSTRAINED BY TWO PARALLEL PLATES OF MICROCLINE FELDSPAR.  THE SPECIMEN IS CLEAN AND BRIGHT AND IT DISPLAYS WELL.  IT WAS COLLECTED IN 1958.  THE PETACA DISTRICT PRODUCED MICA COMMERCIALLY DURING THE FIRST HALF OF THE 20TH CENTURY AS WELL AS SOME RARE EARTH ELEMENTS.  SEE PICTURES.  I WILL COMBINE SHIPPING WHEN POSSIBLE.  THANKS FOR LOOKING.