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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Gallium orthophosphate crystals with sizes of 5 mm and more have been obtained by spontaneous nucleation from hydrothermal 5.6 – 15 M orthophosphoric acid solutions. Preferable concentrations of solvent were found in the range of 11 – 12 M, the temperature difference should not be over 6–10°C at the heating rate of 4 – 5 °C/day. Morphological investigations are carried out using optical and polarizing microscopies. GaPO4 crystals, like quartz and berlinite, tends to grow with well developed {101}, {011}, {100}, {102}, and {012} faces, and they were divided into three habit types. Effect of orthophosphoric acid concentration on the crystal habit has been studied.