Episode

47: The Limestone Family

Podcast
Bedrock: Earth's Earliest History
Published
Oct 8, 2025
Duration seconds
2239
Processing state
not_requested
Canonical source
https://bedrock.captivate.fm/episode/47-the-limestone-family
Audio
https://episodes.captivate.fm/episode/1988c872-aa81-433d-9990-3d97e5a8ba79.mp3
JSON
/v1/public/podcasts/bedrock-earth-s-earliest-history-4890111/episodes/47-the-limestone-family
Markdown
/podcast/bedrock-earth-s-earliest-history-4890111/47-the-limestone-family.md

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Summary

Donate to support the show- anything is appreciated! Today is a tale of two sisters: limestone and dolomite. Limestone is far more popular and well-behaved, one of the most common stones in nature and in architecture. Dolomite, though similar in many ways, is one of the most difficult rocks to make on Earth. Even dolomite’s name is a bone of contention. Today, we introduce both siblings to the show as we move forward in time, 3.75 billion years ago. Along the way, I’ll give you a real experiment to try in the kitchen and we’ll smash some stones together. Extra Credit: Try today’s kitchen experiment, find some limestone around you, or get some calcium in your diet (dairy, leafy greens, or tofu).