Agatized dinosaur bone sphere Sphere 25" (approximately) or 82mm

25" (approximately) or 82mm

Sodalite sphere

resulting from the slow cooling process of the minerals during formation

Agates form in cavities in volcanic rock

Nevada Wonderstone is a colorful

Agatized dinosaur bone sphere Sphere 25" (approximately) or 82mmAgatized dino bone sphere from Utah. 88mm or 3. 5" approximately. 2lbs. This sphere has not been treated or stabilized in any way. 100% natural. Agatized dinosaur bone (often called "gembone") from Utah is fossilized bone where cellular structure has been replaced by silica rich minerals like agate, jasper, or opal, forming approximately 150 million years ago in the Jurassic Morrison Formation.