1. create a new file, fill background with black, create a shape like this, fill with white
2. apply filter--> blur--> motion blur
3. apply filter--> stylize--> find edge
4. use pentool to do a selection of the crystal-like shape, cut it and paste it on a new layer, put it on top
5. apply --> adjust---> variations, adjust colors till you have something like this
6. duplicate layer1 and do free transform
7. repeat step 6 till you have something like this
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