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Rocks and Minerals

Notes for rocks and minerals

QuestionAnswer
What is a mineral? A naturally formed, inorganic, solid, that has a crystalline structure, with a definite chemical composition
What do elements create? New substances or minerals and compounds
The shape of a crystal depends on what? The way the atoms are arranged
What are the 13 properties of a mineral? Color, luster, streak, cleavage, fracture, hardness, density, florescence, chemical reactivity, optical properties, taste, magnetism, radioactivity
How do you find density? Mass divided by volume
What is density? How compacted something is
What is streak? The powdered form of a mineral
What scale is used for hardness? Moh's hardness scale
what is fracture? The shape and texture formed when a mineral breaks
What is the hardest mineral in Moh's hardness scale? Diamond
What is the least hardest mineral in Moh's hardness scale? Talc
What are optical properties? How minerals react with light
What is radioactivity? Minerals that give out radiation
What is fluorescence? How a mineral reacts to ultra violate light
What are the three types of rocks? Igneous, metamorphic and sedimentary
How are metamorphic rocks formed? From intense heat and pressure
How are igneous rocks formed? From cooling and solidifying from molten minerals
How are sedimentary rocks formed? Weathering, erosion, deposition, compaction, and cementation
What are the two groups of metamorphic rocks? Foliated and nonfoliated
What are the two groups of igneous rocks? Intrusive and extrusive
What are the three groups of sedimentary rocks? Clastic, organic, and chemical
What are the six special properties? Florescence, magnetism, taste, radioactivity, optical properties, chemical reactivity
What are some examples of a foliated rock? Gneiss and slate
What are some examples of a non-foliated rock? Marble and quartzite
What are some examples of an extrusive rock? Basalt, pumice, and obsidian
What are some examples of an intrusive rock? Granite
What are some examples of a chemical rock? Gypsum and limestone
What are some examples of an organic rock? Coal, fossiliferous, and limestone
What are some examples of a clastic rock? Conglomerate and breccias
Created by: 33devin7
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