a: Mineral ~
b: a little fossil

What: "The minerals contained in rocks provide hidden clues about the conditions under which the rocks formed. A mineral is like a little fossil. It's a story of a past time. Fossils to us tell us about past living conditions and where that fossil grew and lived at a very different age, and minerals do the same thing. Like fossils, minerals in a given rock are millions, if not billions, years old, but they trap within themselves, within their own internal compositions, their own history."

Writer: Brill
Where: Reference Link Has Evaporated
Date: Sep 8 2014 10:14 AM

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