Post APmGzo2l2LiPeKwN3w by palaeokatie@mastodon.scot
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 (DIR) Post #APmGzo2l2LiPeKwN3w by palaeokatie@mastodon.scot
       2022-11-16T16:02:08Z
       
       0 likes, 1 repeats
       
       There’s a lot going on in this wee agate in matrix 🖤  this agate has formed inside a vesicle in a volcanic rock. The vesicles formed when this magma erupted around 400 million years ago - the eruption was volatile and contained a high proportion of gases which slowly escaped as the lava cooled, leaving lots of wee air bubbles! #scottishagates #scottishgeology #agate