1.9" Polished Hexagonaria Coral Fossil Devonian Age 350 Million Yrs Old Morocco

Location: Assa Zag Region, Morocco

Weight: 1.6 Ounces   

Dimensions: 1.9 Inches Long, 1.8 Inches Wide, 0.7 Inches Thick 

The item pictured is the one you will receive.

Devonian Age, 350 million years old

Hexagonaria fossil coral offers a striking glimpse into ancient Devonian seas, preserved for more than 350 million years within limestone deposits. This extinct colonial rugose coral grew as large, interconnected colonies made up of tightly arranged, geometric skeletal chambers. These chambers, most often hexagonal, create naturally repeating patterns that resemble flowers, honeycombs, or mosaic tiles across the fossil surface.

At the center of each chamber is a skeletal core surrounded by radiating internal walls, forming the complex internal structure that becomes especially visible when the fossil is polished. This intricate architecture reflects how thousands of individual coral polyps once lived together as a single colony, building massive reef frameworks in warm, shallow marine environments.

Well-known sources for Hexagonaria include the Assa Zag region of the Moroccan Sahara and Devonian limestone deposits in Michigan, USA. In Michigan, Hexagonaria percarinata is known as the Petoskey stone and is celebrated as the state stone. Polished specimens display elegant natural color variations, from soft creams and light grays to rich tans and deep browns, making them highly desirable for decorative pieces, jewelry, and fossil collections. Beyond their visual appeal, these fossils serve as important records of ancient reef ecosystems and the diversity of early coral life.