Download 6.1 Minerals are all around us

Learning Goals

Students will:
-identify the characteristics of minerals.
-explain how minerals are classified into
groups.
-identify which mineral group is most
common
3-Minute Warm-Up

1.
2.
3.
Decide if these statements are true. If
not, correct them.
Latitude is a distance in degrees north
or south of the equator.
Convection requires touch while
conduction requires heat rising and
cool air sinking.
Rocks and minerals are the same.
3-Minute Warm-Up
Decide if these statements are true. If
not, correct them.
1. Latitude is a distance in degrees north or
south of the equator. True
2. Convection requires heat rising and
cool air sinking. Conduction requires
touch.
3. Rocks and minerals are different.

We use minerals everyday
 Minerals are found in many things in the
house and classroom.

4 characteristics of minerals:
 Forms in nature
 Is a solid
 Has a definite chemical composition
 Has a crystal structure
 mineral-a substance that forms in
nature, is a solid, has a definite
chemical composition and a crystal
structure
element—a substance that contains
only one type of atom
 crystal—a solid in which the atoms are
arranged in an orderly repeating 3D
pattern.

forms by a natural process, a cycle
 a mineral cannot be a liquid or gas
 each mineral has a specific
combination of elements. Some
minerals have the same composition,
but their structure differs.

Example: graphite and diamond are both
made up of only carbon, but differ in their
structure.
Minerals are grouped by what they are
made of (what they are composed of..)
 Some groups include:

› Silicates
 make up about 90% of the rocks in Earth’s
crust.
› Carbonates
› Oxides

Rocks and minerals are not the same!
› Minerals have 4 characteristics while rocks only
have 2
› Structure is different: minerals always have the
same elements in the same proportion, rocks do
not.
› Crystal structure: minerals have an orderly
structure, rocks are jumbled together.

rock—a naturally formed solid that is usually
made up of one or more types of minerals