Difference between revisions of "Crystal Systems"
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Mineralogists sometimes divide this into two systems, <br> | Mineralogists sometimes divide this into two systems, <br> | ||
the hexagonal and the trigonal, based on their external<br> | the hexagonal and the trigonal, based on their external<br> | ||
− | appearance | + | appearance (see following). |
|[[image:xl_hexagonal.gif|left|]] | |[[image:xl_hexagonal.gif|left|]] | ||
|[[Aquamarine]]<br> | |[[Aquamarine]]<br> |
Revision as of 07:10, 11 November 2006
Crystal Systems & Forms
Crystal System | Diagram | Examples |
---|---|---|
Cubic The cube is composed of 6 square faces |
Diamond | |
Tetragonal The tetragonal system also has three axes |
Zircon | |
Hexagonal
In the hexagonal system, we have an additional axis, |
Aquamarine Benitoite | |
Trigonal Again, the trigonal system is a subsystem of the |
Amethyst | |
Orthorhombic In this system, there are three axes all of which |
Alexandrite Andalusite | |
Monoclinic The above crystal systems all have axes sides |
Azurite | |
Triclinic In this system all the axes are different |
Turquoise |