环状结构硅酸盐晶体精选PPT.ppt

环状结构硅酸盐晶体第1页，此课件共13页哦Ring silicates Ring silicates are the compounds of the metallic cations with ring silicate radicals,which are the important of the Si(Al)6O18.Ring silicates are charecterized by the dominance of prismatic crystal form,high hardness,maderate denerate and lack of perfect cleavage.The minerals have been:Beryl Be3Al2Si6O18 ;Cordierite Mg2Al3Si5AlO18 ;Elbaite Na(Li,Al)3Al6Si6O18BO33(OH,F)4;Schorl NaFe3Al6Si6O18BO33(OH,F)4;Dravite NaMg3Al6Si6O18BO33(OH,F)4.第2页，此课件共13页哦绿柱石晶体Beryl(18x15x6)第3页，此课件共13页哦绿柱石晶体 Beryl第4页，此课件共13页哦海兰宝石晶体Aquamarine(6x3x2)第5页，此课件共13页哦绿柱石晶体 Beryl第6页，此课件共13页哦绿电气石晶体Elbaite(5x2)第7页，此课件共13页哦放射状镁电气石晶体Dravite(h6cm)第8页，此课件共13页哦锂电气石晶体Elbaite(h6cm)第9页，此课件共13页哦紫电气石晶体Elbaite第10页，此课件共13页哦第11页，此课件共13页哦黑电气石晶体 Schorl(9x2x2)第12页，此课件共13页哦黑电气石晶体Schorl(10 x2)第13页，此课件共13页哦