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You test it using color , streak and using a moh's scale to check hardness scientist rate rock's 1 to 10 by rubbing different rock's together if a rock leaves a scratch on the other 1 it is harder than the other one.For example a diamond is rated 10 and it can scratch all rocks lower than 10 on the moh's scale.
What else can I help you with?
How could you tell an older rock from a younger rock just by looking at their isochrons?
You could tell an older rock from a younger rock by looking at it because the older rock isochron would have a steeper slope.
How do you tell if your pet rock is dead?
a rock is never alive
How can you tell if you have a rock or a mineral?
A rock is made of different minerals.
How can you tell if a rock is a metamorphic rock?
A metamorphic rock will display foliation or bands around the rock.
How can you tell whether a rock cliff beside a highway is made of igneous rock or sedimentry rock?
sedimentary rock is a multiple of layers
How do you tell a meteor rock from a rock?
if you take a magnet and put it on two rocks then the meteor rock will attract and the other rock will stay
How could you tell a rock is a living thing?
It is not so you cannot ever tell.
How can you tell that a rock is a igneous rock?
Well The Igneous Rock: When it Forms Underground the Pressure combines with Large crystals :)
Where is the rock cave in soul silver?
You tell me
How do you tell how old a rock engraving is?
with your eyes
You found a rock with an impression of a fish-what does this tell you?
The place you found the rock was once underwater.
Will there be a Michael Jackson rock band?
No, there will be not a Michael Jackson rock band.I will tell you why.. *He is dead.
