AIM: TO LOOK AT THE 7 DIFFERENT TYPES OF CRYSTALS
The 7 types of crystals
Type
|
Number of sides
|
Image
|
Triclinic
Definition:
|
7
|  |
Monoclinic
Definition:
|
10
|  |
Orthombic
Definition:
denoting a crystal system or three-dimensional geometrical arrangement having three unequal axes at right angles.
|
6
|  |
Trigonal
Definition:
denoting a crystal system or three-dimensional geometrical arrangement having three equal axes separated by equal angles that are not right angles.
|
10
|  |
Hexagonal
Definition:
denoting a crystal system or three-dimensional geometrical arrangement having three axes of equal length separated by 60° and a fourth axis of a different length at right angles to these.
"a hexagonal close-packed crystal structure"
|
8
|  |
Cubic
Definition:
a cubic equation, or a curve described by one.
|
6
|  |
Tetragonal
Definition: denoting a crystal system or three-dimensional geometrical arrangement having three axes at right angles, two of them equal.
|
12
|  |
Explain how the following crystals are formed?
Type
| |
Salt
| Water absorbers to the sun and just leaves into crystals. |
Sugar
|
Refined sugar is made from raw sugar that has undergone a refining process to remove the molasses. Raw sugar is sucrose which is extracted from sugarcane or sugar beet. The sugar syrup is concentrated by boiling and then cooled and seeded with sugar crystals, causing the sugar to crystallize out.
|
Snowflakes
|
A snowflake begins to form when an extremely cold water droplet freezes onto a pollen or dust particle in the sky. This creates an ice crystal. As the ice crystal falls to the ground, water vapor freezes onto the primary crystal, building new crystals –the six arms of the snowflake.
|
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