Check out this galactic-looking ancient coral geode. It took over 20 million years to form from a coral head that once lived in an ancient ocean. This is agatized coral, Florida’s state stone. While amber and honey tones are fairly common, black and blue specimens like this are extremely rare, found in only one small area on Earth. #rare #minerals #florida #rocks | Dig Dive Discover

Coral geode?!? | Kaines Crystals

Giant agatized coral geode cut open! #geode #coral #agate #nature | Kaines Crystals