Agatized dinosaur bone occurs from permineralization, a process whereby minerals rich in silicon dioxide fill the spaces within and between the cellular structures of the bone. Agatized fossilized dinosaur bones are petrified with silica or quartz crystals which gives them their colorful, glassy appearance. This process preserves the actual cell structure of the once living dinosaur.

The highly agatized and beautifully colored & patterned dinosaur bone known as “gem bone” is almost exclusively found in the “Four Corners” region of the Colorado Plateau in the USA where the states of Arizona, New Mexico, Utah, and Colorado meet. The wide variety of colors in agatized dinosaur bone is caused by minerals such as chlorite, chromium, iron-oxide and manganese that enter the cells during formation.

Unpolished rough rock cabbing slabs of Dinosaur Bone shown here are ready to be cut, shaped, and polished. These pieces of dinosaur bone are from the Four Corners Region.

Rough GEM Dinosaur Bone Large Red Cells in Slab
Rough GEM Dinosaur Bone Large Red Cells in Slab
Rough GEM Dinosaur Bone Large Red Cells in Slab
Rough GEM Dinosaur Bone Large Red Cells in Slab
Rough GEM Dinosaur Bone Large Red Cells in Slab Rough GEM Dinosaur Bone Large Red Cells in Slab Rough GEM Dinosaur Bone Large Red Cells in Slab Rough GEM Dinosaur Bone Large Red Cells in Slab
Item # DS041194D6201

Rough GEM Dinosaur Bone Large Red Cells in Slab

$22.00

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Weighs 1.8oz (53g) 3.8 x 2.1 x 0.16" (97 x 53 x 4mm)

Rough GEM Dinosaur Bone Blue Cells in Slab
Rough GEM Dinosaur Bone Blue Cells in Slab

Shown WET

Rough GEM Dinosaur Bone Blue Cells in Slab
Rough GEM Dinosaur Bone Blue Cells in Slab
Rough GEM Dinosaur Bone Blue Cells in Slab Rough GEM Dinosaur Bone Blue Cells in Slab Rough GEM Dinosaur Bone Blue Cells in Slab Rough GEM Dinosaur Bone Blue Cells in Slab
Item # DS041194J5290

Rough GEM Dinosaur Bone Blue Cells in Slab

$15.00

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Weighs 8.2oz (232) 4.3 x 3.4 x 0.5" (110 x 86 x 12.8mm)