From Whence It Came
A volchovite is a unique type of spherule found near the Volkhov River, near St. Petersburg, Russia, according to the book. These spherules may be volcanic and can be composed of a variety of trace elements. Some of the spherules contain small metal beads made of titanium, iron, gold and copper, according to the book. This image shows a volchovite in which the bead was about to escape from the spherule but was frozen at the very last moment.