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Main provisions of the crystals theory:
Practical techniques:
Citric acidCitric acid, Maxim MartinovMaxim MartinovVKontakte
Potassium chloridePotassium chloride, Vladimir RomanivVladimir RomanivVKontakte
Ammonium dihydrophosphateAmmonium dihydrophosphate, Aleksey BusarginAleksey BusarginVKontakte
Sodium chlorideSodium chloride, Dmitry ShintyakovDmitry ShintyakovPersonal crystal growing collection