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Main provisions of the crystals theory:
Practical techniques:
Citric acidCitric acid, Oleg Grigor`evOleg Grigor`evVKontakte
Iron(II) sulfateIron(II) sulfate, Viktoriya ShipovaViktoriya ShipovaVKontakte
Aluminum-potassium sulfateAluminum-potassium sulfate, Stanislav PopovStanislav PopovVKontakte
Sodium chlorideSodium chloride, Aleksandr ChernikhAleksandr ChernikhVKontakte
LeadLead, Gleb VertyankinGleb VertyankinVKontakte
The characters of crystals, an introduction to physical crystallography. Moses Alfred Joseph