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Earth History Investigation 2 Minerals What is a Mineral? • A mineral is a ___________________________________________________________________________________________ ____________________________________________________________________________________________________________ • Minerals have a _________________________________________________________________________________________. • But, almost all minerals are compounds, (two or more different elements chemically joined). • Minerals form ___________________________________________________________________________________________. • • particles line up in a regular, repeating pattern. A _________________________________ is a solid with a repeating arrangement of atoms or ions in 3 directions. • ____________________________________________________, meaning they have an orderly internal arrangement of atoms or ions. • Minerals are inorganic, or they are naturally occurring made from non-living things Structure of Minerals • Minerals occur in ____________________________________________________________. • The common rock-forming minerals are composed of _________________________________ _________________________________ that are abundant in Earth’s______________________________________. • _______________________________________ and ________________________________________________ are the two most plentiful elements in the crust. How do Minerals Form? • All minerals __________________________________________________________ • The process of crystallization occurs ________________________________________________________________ ___________________________________________________________________________________________________________. • Minerals can also form from magma. Magma is _____________________________________________________ ___________________________________________________________________________________________________________ . • Metamorphic activity can ________________________________ minerals from great depths onto Earth’s surface. Physical Properties of Minerals • • • ___________________ – The way a mineral ______________________________________________________________. – Can be ___________________________________ or ___________________________________. Streak – ______________________________________________________________________________________ – Not always the same as the color of the mineral. ____________________________ – A measure of _________________________________________________________________________ ___________________________. • If a mineral ________________________________________________________________________, it has cleavage. • If a mineral ________________________________________________________________________________, it has fracture. • Density – Minerals will have a _____________________________________________________ regardless of the size of the sample. • Some minerals have special properties, such as ____________________________, odor, _________________________________________, _______________________________________, or the way they ________________________________ when they come in contact with ______________________________________ ____________.
