GEOL-LAB chapter 3 outline

GEOL-LAB chapter 3 outline - January 31 Lab Chapter 3:...

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January 31 – Lab Chapter 3: Minerals Mineral: a naturally occurring, homogeneous, inorganic solid with an ordered internal arrangement of atoms and a distinctive chemical composition. Naturally occurring: mineral forms by natural Earth processes Homogeneous: piece of a mineral contains the same pure materials throughout. Inorganic: things formed by the life processes of animals and plants cannot be minerals – cannot be sugar, pearls, amber, bones, and wood. Ordered internal arrangement of atoms: a characteristic that separates minerals from substances that may fit all other parts of the definition. Atoms in minerals occupy positions in a grid called a crystalline structure. Solids in which atoms occur in random clusters rather than in a crystalline structure are called glasses. Distinctive chemical composition means that the elements present in a mineral and the proportions of their atoms can be expressed by a simple formula. Crystal: a mineral grows without interference from other minerals, it
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GEOL-LAB chapter 3 outline - January 31 Lab Chapter 3:...

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