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Don't Panic Geocast
John Leeman and Shannon Dulin
424 episodes
1 week ago
John Leeman and Shannon Dulin discuss geoscience and technology weekly for your enjoyment! Features include guests, fun paper Friday selections, product reviews, and banter about recent developments. Shannon is a field geologist who tolerates technology and John is a self-proclaimed nerd that tolerates geologists.
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Natural Sciences
Education,
Technology,
Science
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All content for Don't Panic Geocast is the property of John Leeman and Shannon Dulin and is served directly from their servers with no modification, redirects, or rehosting. The podcast is not affiliated with or endorsed by Podjoint in any way.
John Leeman and Shannon Dulin discuss geoscience and technology weekly for your enjoyment! Features include guests, fun paper Friday selections, product reviews, and banter about recent developments. Shannon is a field geologist who tolerates technology and John is a self-proclaimed nerd that tolerates geologists.
Show more...
Natural Sciences
Education,
Technology,
Science
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Episode 418 - "I like the crystal habit"
Don't Panic Geocast
50 minutes 55 seconds
3 months ago
Episode 418 - "I like the crystal habit"

What makes a mineral a favorite? In this fun and down-to-earth episode, John and Shannon swap stories about the minerals they love most — and why. Along the way, they unpack cool crystal habits, formation environments, fieldwork memories, and the aesthetic appeal of minerals from museum specimens to muddy boots.

Shannon shares her appreciation for:

Hematite – With its metallic luster and planetary significance.
Goethite – A subtle but important iron oxide-hydroxide.
Smithsonite – Beautiful colors and a fascinating history in ore geology.

John counters with:
Ulexite – “TV rock,” with fiber-optic properties that never fail to wow.
Uraninite – A dense, radioactive reminder of geologic power and energy.
Tourmaline – A colorful, complex favorite of mineral collectors and scientists alike.

Fun Paper Friday

  • James, C. W., et al. "A nanosecond-duration radio pulse originating from the defunct Relay 2 satellite." The Astrophysical Journal Letters 987.1 (2025): L16.

Contact us:

Show

  • Support us on Patreon!
  • www.dontpanicgeocast.com
  • @dontpanicgeo
  • dontpanicgeocast@gmail.com

John Leeman

  • www.johnrleeman.com
  • @geo_leeman

Shannon Dulin

  • @ShannonDulin
Don't Panic Geocast
John Leeman and Shannon Dulin discuss geoscience and technology weekly for your enjoyment! Features include guests, fun paper Friday selections, product reviews, and banter about recent developments. Shannon is a field geologist who tolerates technology and John is a self-proclaimed nerd that tolerates geologists.