Lot 320
Agatized Dinosaur Bone Sphere. Agatized dinosaur bone occurs when the hollow bone structure of the dinosaur is replaced by quartz and trace minerals such as iron over millions of years. The best quality agatized dinosaur bone comes from the Jurassic era in Utah. 150 million year old Morrison Formation gem quality dinosaur bone was carefully shaped into a 4.25 inch sphere and polished revealing a rainbow of colors in the individual cells ranging from whites, creams, browns, yellows, orange and even green and blue. This gem quality bone sphere is from the Tom Helfrich Collection. Tom Helfrich was the author of "Dinosaur Vanishing of a Gem Bone". This gem quality dinosaur bone sphere comes on its own custom iron stand for display.
Add $15 for domestic shipping.
Estimated Value $750 - 950.
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