Rocks-Mins-Volcanoes

Rocks-Mins-Volcanoes - Todays Outline Rocks and Minerals...

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1 Today’s Outline Rocks and Minerals minerals rock types chemical and physical weathering Volcanoes Properties of magma
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2 What’s the difference between a mineral and a rock?
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3 Minerals Crystal Structure regular, geometric organization Must be: naturally formed solid specific chemical composition characteristic crystal structure
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4 Minerals 3500 identified Most occur in rocks of the continental crust 40 common ~12 most abundant elements
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5 Minerals Silicates – (SiO 4 ) -4 tetrahedron: basic building block most abundant category of minerals – e.g., kyanite: Al 2 SiO 4
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6 Minerals Silicates polymerization of tetrahedrons forms chains, sheets, and 3D networks
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7 Minerals Silicates
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8 Minerals Silicates focus on concept of crystal structure here worry about actual minerals in lab X X X
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9 Minerals Identification crystal form cleavage color and streak hardness density and specific gravity
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10 Minerals Identification crystal form cleavage color and streak hardness density and specific gravity muscovite mica
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11 Minerals Identification crystal form cleavage color and streak hardness density and specific gravity
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This note was uploaded on 02/09/2009 for the course GEOL 109 taught by Professor Surge during the Spring '08 term at UNC.

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Rocks-Mins-Volcanoes - Todays Outline Rocks and Minerals...

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