Science Minerals
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Created by:
ZebraLova25 on January 15, 2012
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28 terms
Terms | Definitions |
|---|---|
 mineral | a naturally formed, in organic solid with a crystaline structure |
| element | a pure substance that cannot be seperated or broken down into simpler substances by chemical means |
| atom | the smallest part of an element that has all of the properties of that element |
| compound | a pure substance made of 2 or more elements that have been chemically joined or bonded together |
| crystal | the solid geometric form of a mineral produced by a repeating pattern of atoms |
| silicate mineral | a mineral that contains a combination of the elements silicon and oxygen |
| nonsilicate mineral | a mineral that does not contain compunds of silicon and oxygen |
| What is a mineral? | Rocks are made from are not rocks must meet 4 requirements |
| 4 requirements of a mineral | 1. must have crystalline structure 2.must be solid 3.must be formed in nature 4. is made of nonliving material |
| name 2 minerals that are made up of only 1 element | Gold and silver |
| which of the following determines the shape of a crystal a. its compounds b. its atoms or c. its elements | a. its atoms |
| what are the two types of minerals | nonsilicate and silicate minerals |
| name 3 facts about silicate minerals | it makes up 90% of the earths crust made of silicon and oxygen usually combine with other minerals |
| name the 6 classes of nonsilicate minerals | native elements carbonates halites oxides sulfates sulfides |
| what are the 2 most common minerals | oxygen and silicon |
| explain why each is not a mineral: cupcake water teeth and oxygen | Cupcake: cannot be found naturally water: is not a solid teeth: needs a crystalline structure oxygen: is not a solid |
| luster | the way a mineral reflects light |
| streak | the color of a mineral in powdered form |
| cleavage | the tendency of a mineral to break along flat surfaces |
| fracture | the tendency of a mineral to break along curved or irregular surfaces |
| hardness | the resistance of a mineral to scratching |
| density | the amount of matter in a given space; mass per unit volume |
| name the 7 ways to identify minerals | color luster streak cleavage and fracture hardness density and speacil properties |
| how do you determine a minerals streak | by rubbing a mineral against a streak plate |
| ore | a mineral deposit large enough and pure enough to be mined for profit |
| reclamation | The process of returning land to its original condition after mining is completed |
| name the 6 envoirments in which minerals form :) | Evaporating salt water limestones metamorphic rocks Hot water solutions pegmatites plutons |
| what are the 2 types of mining | deep mining and surface mining |
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