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The Six Crystal Families

by geofablab Oct 21, 2013
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This is exactly what my wife was looking for for her gem and mineral club kids program. Thanks!

Hi geofablab,

I noticed that your monoclinic body has a beta angle of exactly 120 degrees, which makes it trigonal or hexagonal (in fact the two objects cc_trigonal.stl and cc_monoclinic.stl are identical). Of course beta=120 is allowed in the monoclinic system, but would it not be better to avoid a special case for educational purposes?



Peter...thanks for the suggestions. I have updated the models to remove the trigonal system as it is a subset of hexagonal family.