The document discusses several metals that are important for industrial use: copper, lead, zinc, mercury, magnesium, and titanium. Copper has been used for thousands of years in bronze and brass production. Lead and zinc often occur together in the same ore veins, with Russia and Australia being major producers. Mercury is the only metal found in liquid form naturally, with the Philippines having deposits of the mercury-containing mineral cinnabar. Magnesium and titanium are both light but strong metals used in industrial applications like aluminum. Gold and silver are also found in the Philippines in placer deposits or as flakes and nuggets.

1. Hannah Dianne Barcelona

2. Which are of great
industrial use to man are
copper, lead, zinc, mercur
y, magnesium, and
titanium.

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4.  Copper has been used by
man for thousand of years.
It is used in the
manufacture of bronze and
brass. Copper occurs as a
free mental in nature but it
is generally associated with
a variety of ores.

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6. are generally mentioned
together because they
generally occur in the same
vein. Russia and Australia
are the leading producers of
lead and zinc.

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8. which is know to the layman as
quick silver , is the only mental
found in the liquid state. The
Philippines owns one of the few
rich mercury deposits in the
form of cinnabar (HgS) in
Puerto prices, Palawan.

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10. Is more abundant than iron.
However, as a constituent of
the earth ‘s crust the
occurrence of large deposits
of aluminum is rare

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12. Is very similar to aluminum
both in properties and uses.
Like aluminum it occurs in
nature with several mineral
but it requires elaborate
metallurgical processes to
transform it into a mental.

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14. Isalso light weight strength and
resistant to and corrosion When
compared with aluminum and
magnesium ,titanium is heavier
but it retains its strength even
when subjected to higher
temperatures.

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16. Gold and silver are the two
precious metals which are both
found in the Philippines. Gold
may be in the form of flakes or
nuggets and when found in
loose materials , placer mining
method are used.

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