Homework Help: earth science

Posted by devils on Saturday, October 24, 2009 at 6:49pm.

Why are some crystals large and perfect, while others are small and irregular?

The only answer in my book that seems close is :

The crystal shape, hardness, cleavage and density of a mineral are determined by the internal arrangement of its atoms or ions.

I don't see anything about why it would be small or large just that they have 6 basic shapes.

earth science - Laura, Saturday, October 24, 2009 at 6:50pm
time and space grown is also a factor

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