Hi there, Since a lot of different forms of crystals shows, I am using a quick/simple strategy to choose crystals by applying a force on the crystal against the wall, with the nylon loop.
Some can never break apart, so they are salt crystals? The others can not survive the force and lose their intact shape and sharp surface. It seems these are protein crystals, but are they "bad" crystals? I just came to this field, and welcome all your suggestions and experience. Thanks a lot. Deliang
