$filetype			CrystalStructure
$structureDesc		GaN crystal (hexagonal axis)
$latticeParameters	{ 0.3189, 0.3189, 0.51865, 90, 90, 120 }
$lengthUnit			nm					// length unit for lattice constants a,b,c
$SpaceGroup			194					// Space Group number from International Tables
$AtomDesctiption1	{Cu001  0.33333 0.66667 0.75 1}
$AtomDesctiption2	{Cu001  0.66667 0.33333 0.25 1}