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This is the preview post #15 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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A beautiful chunk of calcite is preview #15. This is a very nice piece!
This is the preview post #14 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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Preview #14 is the first of a few Fluorite specimens we'll have at the live auction. This one has quite beautiful woith more than a bit of color! This one was collected from the Minerva Mine in southern Illinois.
This is the preview post #13 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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An Acanthodes fish from Mazon Creek is our 13th preview for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. This fish was collected a few decades ago. Read more about Acanthodes in Mazon Monday #9.
This is the preview post #11 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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A beautiful specimen of Malachite from the famous copper mines in Bisbee, AZ is preview #11. This is a gorgeous piece! Come out and see it in person for the Saturday afternoon auction.
This is the preview post #12 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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A replica ot SUE's tooth is up for preview #12 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. This replica tooth was made by the FIeld Museum.
This is the preview post #10 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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For preview #10, we have a large beetle in amber. This fossil comes from Cape du Amber, Madagascar.
This is the preview post #9 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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Preview #9 is a beautiful Lobetelson mclaughlinae from Mazon Creek. L. mclaughlinae was described in 2006 by Frederick Schram, who described many of the Mazon Creek crustaceans. It is distinguished from Belotelson magister by the telson. Mave a look at Mazon Monday #120 for more information.
We will have a wooden styracosaur for sale at the ESCONI Gem, Mineral, and Fossil Show March 15th and 16th. Come check it out! It can be yours!
This is the preview post #8 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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This deep red and purple chunk of Thunder Bay amethyst will be part of the first auction on Saturday, March 15th. These photos don't show the beautiful color in this piece!
Come out and see it!
This is the preview post #7 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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This exquisitely detailed Mississippian crinoid will be part of the auction on Sunday, March 16th. Come on out and it can be yours!
This is the preview post #6 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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From the upcoming 2025 ESCONI Gem, Mineral, and Fossil Show, we have a large and complete Diplomystus dentatus alta from the Green River Formation in Wyoming. This gorgeous fossil will be part of the auction on Sunday, March 16th.
This is the preview post #5 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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Mazonova helmichnus is on the breakfast menu this morning. This Mazon Creek fossil species is thought to be eggs from an amphibian or maybe lungfish. We did a post about M. helmichnus in Mazon Monday #118.
This specimen will be part of the second auction on Saturday, March 15th.
This is the preview post #4 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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For today's auction preview, we have a beautiful piece of Wulfenite from Chihiahua, Mexico. This specimen will part of the second auction on Saturday, March 15th.
The February 2025 Mineralogy Study Group Meeting will be held at 7:30 on February 22nd, 2025. Our speaker is Dan Kile. His topic will be "Thunder Bay Amethyst".
Dan Kile has been an ardent field collector of minerals (along with his wife, Dianne) for nearly 54 years, mostly in Colorado. In addition to field collecting activities, he has taught optical mineralogy for more than 25 years at several venues, including the Colorado School of Mines, the Hooke College of Applied Sciences (Chicago), and the U.S. Geological Survey in Denver. He is a coauthor of numerous articles pertaining to environmental and mineralogical sciences, as well as author of a monograph on the Petrographic Microscope published by the Mineralogical Record; he was additionally a co-author of the update to Ed Eckels' Minerals of Colorado. His articles in Rocks and Minerals magazine include those on Thunder Bay Amethyst (1984), Colorado quartz (1991), Del Norte thunder eggs (2002), Utah geodes (2015) and Mineralogy of the Amethyst Mines in the Thunder Bay Area (2019). He is retired from the U.S. Geological Survey, where his last position as a research geochemist entailed studies on crystal growth mechanisms and the mineralogy of clay minerals.
Topic: My Meeting
Time: Feb 22, 2025 07:30 PM Central Time (US and Canada)
Join Zoom Meeting
Meeting ID: 829 6847 8936
Passcode: 689744
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This is the preview post #3 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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Preview #3 for the upcoming 2025 ESCONI Gem, Mineral, and Fossil Show is a nice piece of native copper with calcite crystals. We have a few of these. This one has a few copper crystals with faces.
Come on out on March 15th and 16th and this could be yours!
This is the preview post #2 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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Everyone loves the Tully Monster. This is a mid-body fossil of Tullymonstrum gregarium, a primative jawless fish from the Carboniferous that just happens to be the STATE FOSSIL OF ILLINOIS! This is a pretty good partial specimen. It has a distinct eyebar and a good of the neck. It's about 4 - 5 inches long.
This is the preview post #1 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th 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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Ok!.... Time to kick off the previews for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. This is a very nice Crenulopteris acadica plate. We have both positive and negative parts. It's a pretty good size with multiple fern fronds. Come on out in March and this can be yours!
