This is the preview post #18 for the 2026 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2026 will be held on March 21th and 22nd at the DuPage Fairgrounds in Wheaton, IL, which is the same location as last year. All details can be found here.

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Here’s a beautiful Lepidostrobus, sp. cone (see Mazon Monday #202) from Mazon Creek. These cones were the reproductive organs of  lepidodendron trees.

Just a few more days…