• Two chunks of matrix with a complex flat fanning pattern on the surface in silver metallic pyrolusite. The pattern matches in mirror-image on the two pieces, as if split in two and opened.
  • Detail of one of the two pieces, with four interconnected fan formations
  • Detail of the second of the two pieces, with the fanning patterns highly reflective and metallic
  • The pieces on their side, with the bases together and patterns oriented fanning toward the outside
  • Detail of the radial fanning pattern on one of the pieces, and the grainy matrix texture
  • The underside of the pieces, a grainy brown matrix with some darker spots.
  • Distant view of the matched pair on a shelf
  • Scale image of the two pieces on a measuring mat, the one on the left measuring a bit over two and a half inches long by a bit over two inches wide. The piece on the right measures over three inches long by almost two inches wide.
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Pyrolusite matched pair

Pyrolusite matched pair

$32.00 USD
$32.00 USD
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Shipping calculated at checkout.

Locale: Sidi Ayed, Fès-Meknès Region, Morocco

Approx dimensions: 3.25 x 1.75 x 1" and 2.5 x 2 x 1"

Approx size: 340g total weight

 

Pyrolusite forms radial fanning patterns with silvery metallic luster. The mineral is frequently sold as stibnite; the two are mineralogically unrelated despite the quite similar appearance. Pyrolusite is a manganese oxide mineral and member of the rutile group, whereas stibnite is a sulfide mineral.

This matched pair has striking pattern of fans of pyrolusite mirrored on each half.

Brittle/staining warning: Pyrolusite can be powdery and leave residue when handled.

The background model is Huernia zebrina.

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