Toying around with Zbrush I found a way to make crystals extremely quick. Here go the step-by-step instructions:
STEP 1: Select the Polymesh3D you are going to add the crystals to.
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Nothing great, but I hope you people find this useful. 
Very cool…!! I love it when someone discovers a hidden method in ZBrush. I will have to try to think of something to use this in…great job.
Hi! I tried it, it works, very cool thanks for sharing
…for true gem 
Thanks. 
Here goes another example, done for the Easter Egg challenge.
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