Withlacoochee River Agatized Coral #5

Withlacoochee River Agatized Coral Specimen #5

Fascinating and rich in natural history, this natural Withlacoochee River Agatized Coral showcases beautifully preserved coral structure transformed over time into stone. Its intricate fossil patterns reflect ancient marine life, giving each piece a unique and collectible character.

This specimen highlights the detailed formation of agatized coral, with varied surface textures that reveal its structure and depth. Ideal for collectors, display, or those who appreciate fossilized material, it offers both geological significance and timeless appeal.

It forms when silica replaces calcium carbonate, creating translucent, colorful chalcedony, often with druzy quartz pockets. Collectors hunt for these in the riverbed, often finding them while snorkeling.

Product Details

• Gemstone: Natural Agatized Coral
• Origin: Withlacoochee River
• Form: Fossil specimen
• Specimen #5

Crystal Folklore

The following associations reflect crystal folklore and spiritual beliefs, not established scientific or medical effects.

• Associated with grounding, ancient wisdom, and stability
• Believed to support connection to earth and past energies
• Often used to encourage patience and resilience
• Thought to promote balance and calming energy

What it is

It’s both a fossil and a gemstone. You’re essentially looking at ancient coral whose internal structure has been preserved but is now composed of chalcedony (a form of quartz). This is why you often see intricate patterns that resemble honeycombs or brain coral, along with occasional crystal-lined pockets.

How it forms

The process is called agatization, and it happens in several stages:

1. Coral grows in an ancient sea
   The coral lives and forms a reef in warm, shallow ocean water.
2. Burial after death
   When the coral dies, it gets buried under layers of sediment like sand and mud.
3. Silica-rich water moves in
   Groundwater carrying dissolved silica flows through the buried coral.
4. Replacement of the original material
   The silica gradually replaces the coral’s calcium carbonate skeleton, molecule by molecule, while keeping the original structure intact. This is known as a pseudomorph.
5. Crystal development
   In some cases, open spaces inside the coral fill with quartz crystals, creating sparkling interiors.
6. Erosion and discovery
   Over millions of years, erosion exposes these fossils, and rivers like the Withlacoochee carry them into areas where they can be found today.

Regional Age

The Florida Museum describes agatized coral collected along the Suwannee and Withlacoochee rivers as approximately 20 to 34 million years old, spanning the Oligocene and early Miocene.

Please Note:
Natural fossil specimens may contain cracks, inclusions, and surface variations. Please review all photographs for visible condition and surface details.

Any display items, stands, trays, or props shown in photos are for presentation purposes only and are not included, if applicable.