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mineral retest

what you should study.

what are the 5 characteristics all minerals hav in common? natural, inorganic, solid, definite chemical composition, crystal structure
what are the 7 properties you test for minerals? streak, texture, luster, magnetism, hardness, cleavage/fracture, reactive to acid
how do you test for streak? rub the mineral on a ceramic tile and observe the line left behind
how do you test for texture? by touch
how do you test for luster? shine a light on the mineral; does it look like metal?
how do you test for magnetism? hold a magnet to it, does it stick?
how do you test for hardness? scratch the mineral with your fingernail, penny, nail, or on glass. use Moh's scale to assign a number
how do you test for breakage? cleavage is clean breaks in flat plains fracture is jagged and random
how do you test for chemical property? drop HCl on the mineral and look for bubbles
tools you use to test for hardness. . . . fingernail(soft/lower number), penny(soft/low number), glass(medium/middle number), nail(hard/higher number)
a mineral must be formed. . . . naturally, can not be man-made in order to be a mineral
what is a fossil fuel? comes from the remains of living things over millions of years, and can be burned for energy
examples of fossil fuels. . . . oil, gas, coal
what is a renewable resource? something that can be renewed over time; can be used over and over again. examples: sun, wind, water
what is a nonrenewable resource? something that has a limited supply; once it is gone, it is gone. examples: fossil fuels
what is needed to create a fossil fuel? the right environment, time, heat, and pressure
the repeating pattern of a mineral forms. . . . its crystal structure
what does it mean when a mineral has a definite chemical composition? that the mineral has the "same recipe" of elements; the same proportions/number and order
Created by: lvanbuskirk



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