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Main provisions of the crystals theory:
Practical techniques:
Iron(II) sulfateIron(II) sulfate, Artem PavlukovArtem PavlukovVKontakte
Aluminum-potassium sulfateAluminum-potassium sulfate, Dmitry ShintyakovDmitry ShintyakovVKontakte
Magnesium-potassium sulfateMagnesium-potassium sulfate, Dmitry ShintyakovDmitry ShintyakovPersonal crystal growing collection
Chromium(III)-potassium ыulfateChromium(III)-potassium ыulfate, Maxim SkokovMaxim SkokovVKontakte
