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Seven. They are:
Cubic - all angles 90 degrees, all sides equal length
Trigonal - all angles 90 degrees, two sides equal and the third unequal
Orthorhombic - all angles 90 degrees, no sides equal
Hexagonal - two angles 90 degrees and one angle 120 degrees, two sides unequal and the third unequal
Trigonal - all angles equal but not 90, all sides equal
Monoclinic - two angles 90, one more than 90, and no sides equal
Triclinic - no angles equal, no sides equal
For a graphical representation of these, see http://en.wikipedia.org/wiki/Crystal_system#Classification_of_lattices
Justus Rau
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How many systems are crystals classified in?
7
How crystals of minerals are cassified?
they are classified as crystalline.
Are sport drink crystals heterogeneous?
Sports drink crystals are heterogeneous because you can see that it is made of many different parts.
How many different kinds of crystals are there?
What are the different kinds of crystals that made up rocks are called?
How many different types of snow crystals are there?
thousands!!
How can you recognize that granite is a mixture of different materials?
you can see the different bits and pieces of the rock
What type of rock can be classified by the size of crystals in the rock?
sedimintary
Why are crystals different colors?
There are different minerals in different crystals which make them different colors. And "imperities"
Why do different crystals have different colors?
Crystals form when they are in high pressure.
Why crystals are color?
There are different minerals in different crystals which make them different colors. And "imperities"
What are rocks that have visible crystals in them classified as?
Rocks with easily visible mineral crystals are called macrocrystalline or said to possess a phaneritic texture.
What are particles in a solid that are arranged close together in a regular pattern classified as?
crystals
