mineral

What:

"When unstable radioactive minerals are trapped in a mineral, they begin to decay. The mineral is like a tiny hour glass collecting products of decay and can be age-dated. The rate of decay varies with the radioactive element but is a constant. As an element such as uranium decays, it may lose protons and thus its atomic number and chemical identity changes. The new element created by the radioactive decay is called a daughter element. For example: uranium, the parent, element spontaneously decays to lead, the daughter element."

Writer: Not Stated

LCC:

Where:

Date: Sep 8 2014 10:09 AM

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

LCC:

Where: Reference Link Has Evaporated

Date: Sep 8 2014 10:14 AM

What: "the atomic arrangement in a mineral is like a genetic code for that mineral and X-ray analysis can determine that code"

Writer: Not Stated

LCC:

Where:

Date: Sep 8 2014 10:16 AM

What:

"A mineral is like a pure chocolate bar. It is made up of the same substance all the way through. They are solids. A mineral is made up of crystals. Almost all minerals have straight edges and flat surfaces. Minerals have different colours,hardness and crystal forms. There are about 2000 types of minerals."

Writer: Not Stated

LCC:

Where:

Date: Sep 8 2014 10:12 AM