岛状硅酸盐晶体

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,岛状结构硅酸盐,岛状硅酸盐矿物为金属元素与岛状硅氧四面体形成的化合,物。它们以等轴状晶形为主，具有硬度高，密度大，折射率,高，无完全解理为特征。形成主要矿物 有：,锆石,ZrSiO,4,； 橄榄石,(Mg,Fe),2,SiO,4,；,Al,2,SiO,4,O,；红柱石,AlAlSiO,4,O,；,矽线石,AlAlSiO,5,；,镁铝榴石,Mg,3,Al,2,SiO,4,3,；铁铝榴石,Fe,3,Al,2,SiO,4,3,；,钙铝榴石,Ca,3,Al,2,SiO,4,3,；钙铁榴石,Ca,3,Fe,2,SiO,4,3,；,锰铝榴石,Mn,3,Al,2,SiO,4,3,；钙铬榴石,Ca,3,Cr,2,SiO,4,3,；,Al,2,SiO,4,(F,OH),2,；十子石,Fe,2,Al,9,SiO,4,4,O,9,(O,OH),2,；,榍石,CaTiSiO,4,O,；硬绿泥石,(Fe,Mg),2,Al,4,SiO,4,2,O,2,(OH),4,；,绿帘石,Ca,2,Fe,3+,Al,2,SiO,4,Si,2,O,7,O(OH),褐帘石,(Ca,Ce),2,(Fe,2+,Fe,3+,)(Al,Fe),2,SiO,4,Si,2,O,7,O(OH)；,Ca,10,(Mg,Fe),2,Al,4,SiO,4,5,Si,2,O,7,2,(OH,F),4,。,1,Island silicates,Island minerals are the compounds of metallic cations with island silicate radic-,als .Cations in the minerals are,Ca , Mg ,Fe , Mn , Al , Nb , Ta , Zr ,Hf ,TR,and etc .Island silicates are charecterized by the dominance of isometric crystal,form ,high hardness ,large density , high reflectance and lack of perfect,cleavage .theminerals have been :,Zircon,ZrSiO,4,; Olivine,(Mg,Fe),2,SiO,4,; Kyanite,Al,2,SiO,4,O,;,Andalusite,AlAlSiO,4,O,; Sillimanite,AlAlSiO,5, ;,Pyrope,Mg,3,Al,2,SiO,4,3,; Almandine,Fe,3,Al,2,SiO,4,3,;,Spessartite,Mn,3,Al,2,SiO,4,3,; Grossular,Ca,3,Al,2,SiO,4,3,;,Andradite,Ca,3,Fe,2,SiO,4,3,; Uvarovite,Ca,3,Cr,2,SiO,4,3,;,Topaz,Al,2,SiO,4,(F,OH),; Sphene,CaTiSiO,4,O,;,Staurolite,Fe,2,2+,Al,9,SiO,4,4,O,6,(O,OH),2,;,Epidote,Ca,2,Fe,3+,Al,2,SiO,4,Si,2,O,7,O(OH),;,Orthite,(Ca,Ce),2,(Fe,2+,Fe,3+,)(Al,Fe),2,SiO,4,Si,2,O,7,O(OH),;,Vesuvianite,Ca,10,(Mg,Fe),2,Al,4,SiO,4,5,Si,2,O,7,O(OH),.,2,橄榄石粒,状集合体,Olivine,(6x7cm),3,铁铝榴石晶体,Almandine(d3cm),4,钙铝榴石晶体,Almandine(4x4x4),5,Andradite(4x3x3),钙铁榴石晶体,6,钙铁榴石晶体,Andradite(3x3x3),7,钙铬榴石,Uvarovite,8,放射状蓝,晶石晶体,Kyanite(12x7),9,蓝晶石晶体,Kyanite,10,蓝晶石放,射状集合体,Kyanite,(h8cm),11,红柱石放射,状集合体,菊花石,Andalusite,12,红柱石放射状,集合体(菊花石),Andalusite,13,菊花石,Andalusite,14,黄玉晶体,Topaz(6x2),15,黄玉晶体 Topaz,(16x10x8),(10x5x5),16,黄玉晶体 Topaz(19x15x4),17,榍石,Sphene,18,绿帘石晶体,Epidote(6x0.5),褐帘石 Orthite,19,褐帘石 Orthite,20,红帘石 Piemontite,21,十字石晶体,(2.5x1.5cm),Staurolite,22,符山石晶体 Vesuvianite(8x8x6),23,符山石 Vesuvianite,放射状(10x10),(8x7x3),24,