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What is it and where is it formed?
Copper is a metal that is found in copper pyrite ore and
chalcopyrite. It forms in volcanic rock and is usually not
found by itself [a ‘native element’]. It is found in an ore
with other minerals most of the time. It is found in
igneous rock. |
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How and where is it mined?
Copper is mined using
open-pit mining
[picture on left] and
underground
mining.
It used to be closer to the surface but many of those places
have been mined already and miners need to go deeper now.
The copper is taken out of the ore by using heat to melt
it. First it is crushed into small pieces and water is
added to it. It is then crushed into tiny pieces and then it
is heated until it melts. Once it melts, anything that
isn’t copper is taken out. Then electricity is run through
the melted copper and purifies it. It is then poured into
molds so that it can cool and become solid again. Copper is
found in the U.S.A.(Michigan and Arizona), Germany, Russia,
and Australia. |
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What is it used for? Copper is
used for wire, pipe, coins, electrical machinery, ornamental
decorations, cooking utensils, and to make bronze
and brass. Copper is easy to pound into other shapes, pulled
to form wires, and mold into things. This is why it is so
useful to industry. |
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Mineral Characteristic |
What the
mineralogists say |
Kid's Guide: What it REALLY
means! |
| Chemical Symbol |
Cu |
This is an element on the
Periodic Table of Elements. |
| Color |
Brownish red |
This metal is a brownish shade of red unless it is
tarnished. Then it is a blue green color. |
| Streak |
Copper red |
If you crush this metal, it turns into a copper red
dust. |
| Transparency |
Opaque |
Light can’t get through it and you can’t see through it. |
| Luster |
Metallic |
If you shine a light on this metal, it is shiny and
glassy. |
| Cleavage |
None |
Because copper is easy to bend and mold, it doesn’t
break easily so there isn’t a pattern for breakage. |
| Fracture |
Jagged |
Copper doesn’t break easily so, when it does, it doesn’t
make nice smooth chunks. Instead, it cracks into jagged
pieces. |
| Magnetism |
None |
It
will not attract, or be attracted to, a magnet. |
| Hardness |
2.5 - 3 |
It is bendable, not hard. You can scratch it with a
fingernail because it is soft. |
| Specific gravity |
8.9 |
This is a heavy metal. |
| Crystal Shape |
Cubic |
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The United States
gets
as much copper from recycling as it does
with mining. |
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Links:
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Copper has been used for 10,000
years. |
Citations:
"Copper."
The Mineral Copper. 21 Oct. 2005 <http://www.minerals.net/mineral/elements/copper/copper.htm>.
"Copper."
Mineral Information Institute. 21 Oct. 2005 <http://www.mii.org/Minerals/photocopper.html>.
Fuller, Sue.
Rocks & Minerals. London: Dorling Kindersley, 1995.
Hagemann, Judy.
open pit copper mine.jpg. August 9, 2005. Pics4Learning. 7 Jan
2006.
<http://pics.tech4learning.com>.
Noonan, Linda.
liberty.jpg. July 10, 2005. Pics4Learning. 7 Jan 2006. <http://pics.tech4learning.com>.
Pellant,
Chris. Rocks and Minerals. New York: Dorling Kindersley, 1992.
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