@article{oai:fukuoka-edu.repo.nii.ac.jp:00000934,
 author = {上野, 禎一 and 福嶋, つかさ and 西山, 恵梨 and 小平, 希望 and 土橋, 健太郎 and 長澤, 五十六},
 journal = {福岡教育大学紀要. 第三分冊, 数学・理科・技術科編 = Bulletin of Fukuoka University of Education. Part III, Mathematics, natural sciences and technology},
 month = {2013-02-08, 2020-09-28},
 note = {Syntheses of emerald were performed by flux method using Pt-crucible and electric furnace. Starting materials are as follows. The principal ingredients are BeO, Al2O3 and SiO2. The coloring reagent is Cr2O3 for green color. The fluxes are MoO3-Li2O and PbO-PbF2. The mole ratio of BeO : Al2O3 : SiO2 is 3 : 1 : 6, which is the composition of beryl. For the total weight of the principal ingredients, the weight % of Cr2O3 were varied between 1.0 and 2.8, and the total weight of fluxes were varied between 1.7 and 3.9 times. The maximum heating temperature was 1,100 ℃ and the maximum heating time was 30 days. Although the beautiful transparent green hexagonal columnar emerald crystals (maximum crystal length for c-axis direction is 2.7 mm) were obtained as informed by Oishi(1994), several kinds of by-products (phenakite, β-LiAlSi2O6, MoO3, and PbAl2Si2O8) were also produced as for some experimental conditions. In this study, we report the crystal data of emerald and some by-products., 福岡教育大学紀要. 第三分冊, 数学・理科・技術科編, Bulletin of Fukuoka University of Education. Part III, Mathematics, natural sciences and technology},
 pages = {61--74},
 title = {フラックス法によるエメラルドの合成と副産物に関する研究},
 volume = {62},
 year = {}
}