Download Minerals

Minerals
Bellringer: Turn in Homework from
yesterday
Get out blank piece of paper to write
tonight’s homework questions on.
Minerals from Magma
• Minerals can form from the
cooling of magma
• Magma is molten material
found beneath Earth’s
surface.
• If magma cools slowly, the
mineral crystals are large.
• If magma cools quickly, the
mineral crystals are small.
Minerals from Solution
• Supersaturated solution= a
given volume of water can
not dissolve any more solid
• Mineral crystals will drop out
of the solution
• Also, mineral crystals can
form when liquid evaporates
Mineral Groups
• Earth’s crust= 3,000
minerals
• 30 are common
• Common= rock-forming
minerals
• 90 elements= crust
• Common elements=
Oxygen, silicon, aluminum,
iron, calcium, sodium,
potassium, magnesium in
order of highest to lowest.
Silicates
• Most abundant elements are
oxygen and silicon
• Silicates= silicon, oxygen, and
possibly other elements
• Make up 96% of minerals on
Earth’s crust
• Examples: feldspar and quartz.
Carbonates
• Metals combine with
CO3
• Examples= calcite,
dolomite, and
rhodochrosite.
• Primary minerals found
in rocks such as
limestone, coquina,
and marble
• Distinctive colors:
green and blue
Oxide
• Compounds of oxygen and
metal
• Examples: Hematite,
Magnetite, Uraninite
• Uraninite: source of
uranium, generate power.
Turn in yesterday‘s homework. Start
writing these on separate piece of paper
• 1. Define a mineral. Give 2 reasons why petroleum
is not a mineral?
• 2. How do minerals form from solution? From
magma?
• 3. What are the 2 most abundant elements in
Earth’s crust? What mineral groups do these
elements form?
• 4. Identify the other major mineral groups
• Concept Map: How minerals are formed, magma,
solution, mineral groups, examples, common
elements.