5.7K views · 67 reactions | 340 million year old geode! #cracking #geode #crystals #geology | Kaines Crystals | Facebook

80K views · 3.5K reactions | How could you not be excited for a geode like this! #geode #crystals #rockhound #geology | Kaines Crystals | Facebook

1.7K views · 17 reactions | Do you know the science behind geodes? Geodes occur when a cavity forms inside a rock. They can form in several ways, but are most commonly found among igneous and sedimentary rock. These rocks are pourous, causing water to seep in and deposit additional minerals, which eventually crystalize. Some of the largest geodes can take millions of years to grow! Plenty in stock at the Milwaukee store! Fun AND a great lesson! | American Science & Surplus | Facebook

158K views · 952 reactions | Geode hunting time #trending #rockhound #crystals #geode | Glass gruble | Facebook

1K views · 14 reactions | Look at all these geodes! #geodehunting #privateisland #kentuckygeodes geode hunting on a buddy’s property in KY with permissions | RockHunter Mark | Facebook

59K views · 4.6K reactions | Amazing find while geode hunting #rockhounding #keokuk #geodes #fossils #geode #rockhound #rocksarecool #iloverocks #fossilfind #whatisthisrock #rocksofinstagram #fossilsofinstagram | RockHunter Mark | Facebook