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Main provisions of the crystals theory:
Practical techniques:
Copper(II) sulfateCopper(II) sulfate, Andrey ZmitrovichAndrey ZmitrovichVKontakte
Aluminum-potassium sulfateAluminum-potassium sulfate, Andrey ZmitrovichAndrey Zmitrovich
Potassium hexacyanoferrate(III)Potassium hexacyanoferrate(III), Inna MudrikInna MudrikVKontakte
Magnesium sulfateMagnesium sulfate, Gleb VertyankinGleb VertyankinVKontakte