阿钙霞石

{{Infobox mineral
| boxbgcolor = #406abe
| name = 阿钙霞石
| image = Afghanite (Afghanistan) 1.jpg
| imagesize = 260
| alt =
| caption =
| category = 网硅酸盐
| formula = (Na,K)22Ca10Si24Al24O966Cl6
|IMAsymbol=Afg
| strunz = 9.FB.05
| dana =
| system = 三斜晶系
| class = 二棱锥体 (3m)
H-M记号: (3m)
| symmetry = P31c
| unit cell = a = 12.796, c = 21.409 [Å]; Z = 1
| color = 浅蓝色、深蓝色
| colour =
| habit = 板条状晶体，圆形颗粒
| twinning =
| cleavage = 完美 {100}
| fracture = 贝壳状
| tenacity =
| mohs = 5 - 6
| luster = 玻璃
| streak = 白色
| diaphaneity = 透明
| gravity = 2.55 - 2.65
| density =
| polish =
| opticalprop = 单轴 (+)
| refractive = nω = 1.523 nε = 1.529
| birefringence = δ = 0.006
| pleochroism =
| 2V =
| dispersion =
| extinction =
| length fast/slow =
| fluorescence =
| absorption =
| melt =
| fusibility =
| diagnostic =
| solubility =
| impurities =
| alteration =
| other = 放射性 2.28% (K)
| references =
}}
阿钙霞石或阿富汗石（英语：Afghanite），化学式为(Na,K)22Ca10Si24Al24O966Cl6，

参见

• 矿物列表

参考资料