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Lot 39: RARE AMMONITE PYRITE NODULE
by I.M. Chait
May 16, 2010
Beverly Hills, CA, USALive Auction
RARE AMMONITE PYRITE NODULE
Jurassic, Toarcian stage
Whitby, North Yorkshire, England
This lovely specimen is from a locality that yields barely two specimens per year and they are becoming increasingly scarce on the market. It looks like a shining metallic cannonball, the outer surface of the pyrite nodule polished to a silvery gun-metal sheen. But the real interest lies inside, split open to reveal the beautifully preserved remains of a Jurassic ammonite in both positive and negative, its dark coloring harmonizing beautifully with the dark slate gray stone. Measuring 2 5/8 inches wide, it is accompanied by two smaller specimens and each half of the nodule measures 6 1/8 inches wide.