28 terms

Science Minerals

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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