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1.8" Polished Indonesian Fossil Coral Pendant (Necklace)
This is a fascinating 1.8" tall polished pendant crafted from fossil coral found in Sumatra, Indonesia—a stone born from ancient reefs and transformed into vibrant, agatized beauty over millions of years. Its polish reveals intricate, flower-like coral patterns that glow with natural depth and character. It comes 24" silver-plated snake chain, ready to wear and showcase.
About Fossil Coral From Indonesia
These fossil corals are approximately 20 million years old, dating to the Miocene epoch, and represent the preserved remains of vibrant ancient reef systems that once flourished in warm, shallow seas teeming with marine life. Indonesia sits at the heart of the Pacific “Ring of Fire,” where intense plate tectonics have uplifted massive sections of former seabed—coral reefs included—thrusting them skyward as volcanic mountain ranges formed. Over millions of years, these corals were buried by sediment and slowly fossilized in mineral-rich groundwater environments.
During this process, the original organic skeleton was replaced and infilled by a complex blend of silica, iron, manganese, calcium, and trace elements, often producing exquisite agatized preservation with rich banding, druzy crystal pockets, and occasional metallic dendrites formed by manganese or iron oxides. Unlike many fossils that compress or distort, coral fossils frequently preserve their original 3D colony structures—including delicate corallite cups, growth branches, and surface textures—making them an unusually faithful archive of reef morphology. Some specimens also record micro-borings left by sponges, worms, and bivalves, frozen mid-process before mineralization sealed them
These fossil corals are approximately 20 million years old, dating to the Miocene epoch, and represent the preserved remains of vibrant ancient reef systems that once flourished in warm, shallow seas teeming with marine life. Indonesia sits at the heart of the Pacific “Ring of Fire,” where intense plate tectonics have uplifted massive sections of former seabed—coral reefs included—thrusting them skyward as volcanic mountain ranges formed. Over millions of years, these corals were buried by sediment and slowly fossilized in mineral-rich groundwater environments.
During this process, the original organic skeleton was replaced and infilled by a complex blend of silica, iron, manganese, calcium, and trace elements, often producing exquisite agatized preservation with rich banding, druzy crystal pockets, and occasional metallic dendrites formed by manganese or iron oxides. Unlike many fossils that compress or distort, coral fossils frequently preserve their original 3D colony structures—including delicate corallite cups, growth branches, and surface textures—making them an unusually faithful archive of reef morphology. Some specimens also record micro-borings left by sponges, worms, and bivalves, frozen mid-process before mineralization sealed them
$35
SPECIES
Coral (Unknown Species)
LOCATION
Sumatra, Indonesia
SIZE
Pendant 1.8" tall, Chain 24"
CATEGORY
SUB CATEGORY
ITEM
#345302
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