Something spectacular

"An epic journey through time. Through ice ages, meteor showers, and earthquakes, readers experience the formation of an ancient treasure. Meanwhile, somewhere in the present, a little girl sets out on a hike with her family. The two stories collide when the little girl finds something . . . on the side of a trail--a treasure forged over the course of hundreds of millions of years--the discovery of a precious heart rock"--Provided by publisher.