| 某碳酸岩-超碱性岩杂岩体中磷灰石的晶体化学研究 |
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| 引用本文： | 刘羽.某碳酸岩-超碱性岩杂岩体中磷灰石的晶体化学研究[J].矿物岩石,2000,20(2):1-4. |
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| 作者姓名： | 刘羽 |
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| 作者单位： | 武汉化工学院,武汉,430074 |
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| 基金项目： | 意大利C.N.R.基金 |
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| 摘 要： | 本文用电子探针成分分析，Ｘ射线单晶结构分析，振动光谱等手段对意大利武图列火山地区碳酸岩－超碱性岩杂岩体中磷灰石的晶体化学特征进行了研究。结果表明：该磷灰石的晶体化学式为：（Ｃａ９．８１Ｓｒ０．０５Ｍｎ０．０１ＬＲＥＥ０．０４Ｎａ０．０９）「Ｐ５．５０Ｓｉ０．０１５Ｓ０．０５Ｃ０．３０」Ｏ２３．７（Ｆ０．８０Ｃｌ０．０３ＯＨ１．１７），属氟羟磷灰石，其结构中在钙多面体与磷氧四面体位置上出现广泛的类质
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| 关 键 词： | 磷灰石 晶体化学 碳酸岩－超碱性岩杂岩体 |
| 文章编号： | 1001-6872(2000)02-0001-04 |
| 修稿时间： | 2000-01-17 |
CRYSTAL-CHEMICAL CHARACTERISTICS OF THE APATITE FROM A CARBONATITE-ULTRA-ALKALINIC COMPLEX |
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| LIU Yu.CRYSTAL-CHEMICAL CHARACTERISTICS OF THE APATITE FROM A CARBONATITE-ULTRA-ALKALINIC COMPLEX[J].Journal of Mineralogy and Petrology,2000,20(2):1-4. |
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| Authors: | LIU Yu |
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| Institution: | LIU Yu
;(Wuhan Institute of Chemical Technology, Wuhan 430074) |
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| Abstract: | The crystal-chemical characteristics of the apatite from the carbonat ite-ultra-alkalinic complex of Vul ture, Italy, was investigated with EMPA, X -ray structural refinement and vibrational spectroscopy. The apatite studied be longs to fluor-hydroxyapatite with a formula : (Ca 9.81 Sr 0.05 Mn 0 .01 LREE 0.04 Na 0.09 )P 5.50 Si 0.15 S 0.05 C 0.30 ]O 23.7 (F 0.80 Cl 0.03 OH 1.17 ). Wide isomorphic substitution s, such as SiO 4 4- CO 3 2- =2PO 4 3- ,REE 3 SiO 4 4 - = Ca 2 PO 4 3- , Sr 2 =Ca 2 ,OH -=F -, occur in its structure. The existence of carbonate and silicate in its structure was c onfirmed by IR and Raman data. |
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| Keywords: | apatite crystal-chemistry typomorphic peculiarities |
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