Crystallography Class 1

Identify the crystal figure

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Identify the picture of amorphous substance?

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Wrong statement for a Crystal ?

• Polyhedral form

• typical internal structure

• typical external form

• Surrounded by irregular faces

Which statement is correct for

crystallography

• A branch of science deals with crystal formation, internal and external structure

• A branch of science deals with crystal formation and occurrence

• A branch of science deals with crystal formation and internal structure only

Identify the right statement for an amorphous substance ?

• Polyhedral form

• No external and internal structure

• Have a internal structure but do have external structure

• Covering smooth surfaces