Allison Coward -- most geodes that we find today are from old volcanic eruptions. As lava cooled air bubbles were trapped inside cresting empty pockets. over millions of years minerals filled those pockets created the beautiful crystal treasure that we find today.

Did you know that Geodes were formed by Ancient Volcanoes?

Erupting volcano - Most of the geodes that we find today were actually created when ancient Volcanoes erupted! As the lava cooled, air bubbles became trapped inside creating empty pockets. Over millions of years these pockets filled with the minerals

http://www.ngkids.co.uk/science-and-nature/Volcano-Facts

There are just so many good infographics and interactives out there that I’ve begun a new semi-regular feature called “Infographics & Interactives Galore.

Blue volcano / Kawah Ijen - Indonesia

Blue volcano / Kawah Ijen - Indonesia

Blue volcano / Kawah Ijen - Indonesia - due to combustion of sulfuric gases at extremely high temperatures

Eruption – Ararat Turkey.

Eruption – Ararat Turkey

"Amazing photo of Mount Ararat, Turkey". except, Mount Ararat has been dormant for at least years Millenium, B. This is a photo manipulation by Sako Tchilingirian. The ash cloud is from a Chilean volcano.

Vulcan's Forge - an active lava lake located within the crater at the top of Mount Nyiragongo volcano in Virunga National Park, Congo (DRC). Photography by Ian Plant

Vulcan's Forge - I hiked six hours to reach an active lava lake located within the crater at the top of Mount Nyiragongo volcano in Virunga National Park, Congo (DRC). I spent the night at the top to photograph the lava at night.

Mauna Loa volcano covered in lava during an episode of intense eruption activity.

Mauna Loa Volcano Lava Eruption Poster 24x36

A great poster for any Volcanologist - Hawaii's Mauna Loa Volcano covered in lava during an eruption. Need Poster Moun

Osorno volcano, Chile

10 Stunning Places In Chile You Need To See Before You Die Chile is stunning all year round, from the desert north to the central coast (including Valparaíso)

In 1600 the Greek city of Crete ~ was hit hard by a massive volcano. The volcano threw up ash covering cities and ruining crops. They may have been the end of the Minoan civilization.

Daredevil photographers brave boiling waters to capture the drama of searing-hot lava crashing into the seas off Hawaii

Stunning. Picture: Caters News Agency You are just over the ocean now and I am wishing I was with you.

Lightning Meets Lava in These Incredible Images by Nature Photographer Hernando Rivera

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