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News and updates about Show Me Rockhounds Kansas City, rock club meetings, rock collecting, or our websites.

Missouri Mines Swap

Missouri Mines Rock Swap June 2017 mineral auction Park Hills Next weekend (June 10, 2017) we are going on a trip to the Missouri Mines Rock Swap in Park Hills, Missouri. We will look for drusy quartz and possibly Missouri banded agates. The swap itself goes from June 9-11 if you want to stay longer and is located at the Missouri Mines Historic Site near St. Joe State Park, 4000 MO-32, Park Hills, Missouri 63601. FREE admission to the show!

Directions: From Missouri 32, get off at Federal Mill Rd and look for the Missouri Mines Historic Site. Google Maps

Cave Formations Show Evidence of Fire

stalactites inside a cave

Drip water in Yonderup Cave contains evidence of an aboveground fire. Credit: Andy Baker/U. New South Wales

Stalactites and stalagmites form in caves when water that contains dissolved minerals (such as calcium carbonate) drips from the ceiling. Scientists can analyze the 18O/16O ratios (isotopes of oxygen) in the stalactites and see how the temperature changed as they were formed. A team led by Andy Baker, Gurinder Nagra, and Pauline C. Treble of the University of New South Wales, Australia discovered that Yonderup Cave had a lot more 18O than they expected. Since having more 18O is associated with higher temperatures at the time of formation[1], it could have been interpreded as one of the largest climate changes in the last 2 million years.

But, there was a wildfire in 2005 and a large tree died right on top of the cave. Baker’s team believes that this is what actually caused the increased 18O concentration. This is important for anybody else trying to use these oxygen isotopes to determine ancient temperatures, because if they get a very warm result it might have been caused by a forest fire instead.

[1]It’s a little more complicated than that. Read the whole article here: http://cen.acs.org/articles/94/i30/Cave-dripwater-contain-fire-evidence.html and check Baker’s website for more interesting stuff about how he researches caves to learn about past climates.

Spring 2017 Gem Show Photos

The Spring 2017 Gem and Mineral Show was very successful. The parking lot was filled to capacity and we made over $3000 for the scholarship fund. I think it helped that it was so cold on Saturday, because people wanted to do something indoors. Here are some of the highlights.

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My favorite exhibit: The Earth’s Rainbow by Maple Woods Community College. It shows minerals of every color and how they get their colors. Photo by Stephanie Reed

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Geological features of Missouri made out of minerals by Susan Judy (Stone Quilt Design) Unfortunately, it was already sold when I saw it. Photo by Stephanie Reed

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Mr. Bones was wondering what was so interesting on this person’s phone. Photo by Stephanie Reed

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David and Stephanie Reed showing off the new Association banner. Photo by Bob

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Cretaceous fossils from Kansas, displayed by KU. The iridescent baculite is especially nice. Photo by Stephanie Reed

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Selenite crystal from Kansas. I sold it at the Association Booth. Photo by Stephanie Reed

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Shea Oak slab in UMKC’s petrified wood exhibit. This specimen usually lives at the Sutton Museum at UMKC. Photo by Stephanie Reed

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A blue morpho butterfly seen at Butterflies by God. Photo by Stephanie Reed

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The Bead Society had a lot of great cases. Photo by Stephanie Reed

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Keshi pearls (i.e. non-nucleated pearls) from Avian Oasis. Photo by Stephanie Reed

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Jeanna and Jim in foreground, Chet and Bob in background. Photo by Stephanie Reed

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Agatized Dinosaur bone from the Morrison Formation in Utah, seen at Science Leads the Way. We met the person who found it. Photo by Stephanie Reed

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Australian Boulder Opal cabs from Dreaming Down Under. Photo by Stephanie Reed

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This otherworldly glass sculpture was at Madagascar Gemstones. Photo by Stephanie Reed

Spring 2017 Lectures

Lectures presented by the Association of Earth Science Clubs of Greater Kansas City

Friday, March 10, 2017

3:00 p.m. “Opal Down Under”, Ron Wooly, Owner of Dreaming Down Under

Saturday, March 11, 2017

1:00 p.m. “Earth Science… Facts, Frauds and Scams”, Mark Sherwood, Independence Gem and Mineral Society

2:00 p.m. “The Life and Hard Times of the KU T. rex”, Dr. David Burnham, Research Associate, University of Kansas, Lawrence, Kansas

3:00 p.m. “Medullary bone in Tyrannosaurs: a question of chickens, eggs and possibly more”, Dr. Josh Schmerge, University of Kansas, Lawrence, Kansas

4:00 p.m. “History of Gold Mining”, Doug Foster, Show-Me Gold, Missouri

Sunday, March 12, 2017

2:00 p.m. “The Life and Hard Times of the KU T-rex”, Dr. David Burnham, Research Associate, University of Kansas, Lawrence, Kansas

3:00 p.m. “Islands in the sun: Eocene fossil mammals from Turkey”, Dr. Chris Beard, University of Kansas, Lawrence, Kansas

Special Exhibits 2017

KANSAS CITY GEM SHOW SPRING 2017 FEATURE EXHIBIT

ROCK ART –Stone Quilt Design; Susan Judy; Denver, CO and WKP Accent Tables; Bill Peterson; Boulder, CO
Colorado artists Judy and Bill have brought some of their creations to the Kansas City Show.  Judy inlays natural materials in a stone mosaic to create pictures and Bill uses natural materials to create tables.

INVITATIONAL EXHIBITS (more…)