Fossil agate is a general term for instances where various types of agate have formed as mineral replacements in fossilization. While some specimens are extraordinary, many are just concretions of small shells that form an interesting marble-like pattern. You can often pick out the shapes of different shells in large chunks. The concretions are sometimes cut for jewelry.
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Fascinating Fossils, Minerals Fossils, Ancient Coral, Fossils Gems, Fossil Coral
Fossil coral is a natural stone that is formed when ancient coral is gradually replaced with agate. The proper name for this material is agatized coral or agatized fossil coral. The fossilized coral typically appears as small flower-like patterns in the stone.
coral fossil...would make a cool print!
Natural fossilized coral
agatized fossil coral
Fossil coral is a natural stone that is formed when ancient coral is gradually replaced with agate. The proper name for this material is agatized fossil coral.