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Main provisions of the crystals theory:
Practical techniques:
Iron(II) sulfateIron(II) sulfate, Viktoriya ShipovaViktoriya ShipovaVKontakte
Potassium chloridePotassium chloride, Vladimir RomanivVladimir RomanivVKontakte
Magnesium-potassium sulfateMagnesium-potassium sulfate, Dmitry ShintyakovDmitry ShintyakovPersonal crystal growing collection
Magnesium sulfateMagnesium sulfate, Viktor NaumovViktor NaumovVKontakte
SucroseSucrose, Sergey SachkovSergey SachkovVKontakte
Origins of the Science of Crystals. John G. Burke