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硅铈石

硅铈石
基本資料
類別硅酸盐矿物
化学式(Ce,La,Ca)
9
(Mg,Fe3+
)(SiO
4
)
6
(SiO
3
OH)(OH)
3
IMA記號Crt[1]
晶体分类双三角形棱柱体(3m)
H-M记号相同)
晶体空间群R3c
性質
顏色丁香棕色,略带红色; 呈淡紫色棕色至无色的薄片状
晶体惯态大颗粒
晶系三方
解理
断口参差状
莫氏硬度5 - 5.5
光澤玻璃到珍珠
條痕白色到灰白色
透明性半透明到不透明
比重4.7 - 4.86
光學性質单轴 (+)
折射率nω = 1.806 - 1.810 nε = 1.810 - 1.820
双折射δ = 0.010
參考文獻[2][3][4]

硅铈石(英語:Cerite)是一种含的复杂硅酸盐矿物族,化学式为(Ce,La,Ca)
9
(Mg,Fe3+
)(SiO
4
)
6
(SiO
3
OH)(OH)
3
.[3]铈和镧的含量随富铈品种(铈硅铈石,英語:cerite-(Ce))和富镧品种(镧硅铈石,英語:cerite-(La))而变化。[5][6] 对来自芒廷帕斯碳酸盐岩样品的分析表明,Ce
2
O
3
含量为 35.05%,La
2
O
3
为30.04%。[3]

硅铈石于1803年首次在瑞典西曼兰Bastnäs发现。[4]富含镧的物种镧硅铈石于2002年首次在俄罗斯科拉半岛的Khibina地块中发现。[7]

参考资料

[编辑]
  1. ^ Warr, L.N. IMA–CNMNC approved mineral symbols. Mineralogical Magazine. 2021, 85 (3): 291–320 [2022-09-04]. Bibcode:2021MinM...85..291W. S2CID 235729616. doi:10.1180/mgm.2021.43. (原始内容存档于2021-12-13). 
  2. ^ Mineralienatlas. [2022-09-04]. (原始内容存档于2021-10-20). 
  3. ^ 3.0 3.1 3.2 http://rruff.geo.arizona.edu/doclib/hom/ceritece.pdf页面存档备份,存于互联网档案馆) Handbook of Mineralogy
  4. ^ 4.0 4.1 http://webmineral.com/data/Cerite-(Ce).shtml页面存档备份,存于互联网档案馆) Webmineral (Ce)
  5. ^ http://www.mindat.org/min-931.html页面存档备份,存于互联网档案馆) Mindat Cerite-(Ce)
  6. ^ http://www.mindat.org/min-26408.html页面存档备份,存于互联网档案馆) Mindat Cerite-(La)
  7. ^ http://webmineral.com/data/Cerite-(La).shtml页面存档备份,存于互联网档案馆) Webmineral (La)

外部链接

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硅铈石
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