Chapter 3 Minerals. Lesson 1 What is a mineral? Pages 76-84. Chapter Introduction. What are minerals and why are they useful?. http://www.redorbit.com/news/video/education_1/1112810933/what-is-a-mineral/. Chapter Introduction. SS#1 Sept. 24, 2013. What is a mineral?.
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What is a mineral?
What are minerals and why are they useful?
SS#1 Sept. 24, 2013
crystalsolid chemical substance with a regular, repeating arrangement of its atoms
crystallizationwhen particles dissolved in a liquid solidify to form crystals
lava molten rock that erupts onto Earth’s surface
magmamolten rock material under Earth’s surface
Silicate a mineral group that has silicon and oxygen in its crystal structure
orderly crystal structure
definite chemical composition
Four axes, three are equal in length and lie at an angle of 120° from each other.
Example – halite
Example - gold
Example – Quartz
The two main families of rock-forming minerals are the silicates and the nonsilicates.
Example:Quartz, Feldspar, Olivine and Mica
Example: Calcite and Halite
A mineral is a naturally occurring, inorganic solid with a definite chemical composition and crystalline form.
What type of chemical composition do minerals have?
The common rock-forming minerals are composed of combinations of elements found in which part of the Earth?
Which process occurs when particles dissolved in a liquid or gas solidify and form crystals?
C. crystal growth
2. Some minerals form when water evaporates from Earth’s surface.
Do you agree or disagree?