earth science 7

earth science 7 - Lab - Introduction to Minerals Objectives...

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Unformatted text preview: Lab - Introduction to Minerals Objectives 1. Distinguish between rocks and minerals. 2. Distinguish the three basic subatomic particles, understand atomic mass, atomic number, radioactivity, isotopes, and ions. 3. Describe the various type of bonding in chemical compounds (ionic, covalent, metallic). 4. Describe the process of crystallization in minerals. 5. Distinguish the physical properties that are useful in identifying minerals. 6. List the eight most common elements of the earth's crust. 7. Briefly describe the silicon-oxygen tetrahedron. 8. List and distinguish among the common silicate minerals. 9. List the economic uses of some common minerals. 10. Describe the chemical classification of minerals. Outline You can use these links and the information below as reference Definitions Physical Properties of Minerals Chemical Properties of Minerals Definitions Mineral 1. Naturally occurring 2. Inorganic 3. Solid 4. Definite chemical composition 5. Orderly internal crystal structure Rock An aggregate of one or more minerals Examples? Polymorphs Two minerals with the same chemical composition, but a different crystal structure. Examples? Physical Properties of Minerals 1. Color not always diagnostic (feldspar, quartz, fluorite) Feldspar can be green, pink white, gray, etc. 2. Luster metallic non-metallic glassy or vitreous, dull, pearly, resinous, waxy, adamantine, silky 3. Streak unglazed porcelain plate note color, odor if any Both of these samples are hematite; both have a reddish-brown streak 4. Hardness scale of 1 to 10 (Mohs Scale) 1. Talc 2. Gypsum ________ fingernail 3. Calcite ________ penny (copper) 4. Fluorite _________ nail 5. Apatite _________ glass 6. Orthoclase feldspar (K feldspar) 7. Quartz 8. Topaz 9. Corundum...
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This note was uploaded on 04/19/2011 for the course ERTH 100 taught by Professor Jerryw.kousen during the Spring '11 term at Vincennes.

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earth science 7 - Lab - Introduction to Minerals Objectives...

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