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南平石是一种新的铯矿物,它产于福建南平31号白云母—钠长石—锂辉石型伟晶岩中,以细脉形式发育在伟晶岩中部铯沸石集合体附近的石英—羟磷铝锂石组石带内。形态酷似白云母,比重为3.11(实测)和3.19(计算)。二轴晶,负光性,折光率,Ng=1.588,Nm=1.584,Np=1.551,b=Ng。结晶化学式:(Cs_(0.83)K_(0.06)Rb_(0.01))_(0.95)(Al_(1.64)Mg_(0.22)Fe_(0.17)Li_(0.15))_(2.18)[(Si_(3.16)Al_(0.84)_4O_(10)][(OH)_(1.78)F_(0.21]_2。南平石属单斜晶系,2M_1多型,空间群为C2/c,晶胞参数:a=5.362(3),b=8.86(1),c=21.42(1),β=95.72(2)°,V=1012.3~3,Z=4。热谱分析表明,吸热谷仅有920℃一处,失重约3.3％。红外吸收谱带波数(cm~(-1))是3634、3429、1625、1083、1018、911、823、788、741、663、515、467、420、350。
Nanping stone is a new cesium mineral, which is produced in Muscovite-albite-spodumene pegmatite in Nanping, Fujian Province, and is characterized by fine veins in the quartz near the aggregates of cesium zeolite in the central part of pegmatite Lithophosphatidic Lithium Stone Stones. Morphology resembles muscovite, the proportion of 3.11 (measured) and 3.19 (calculated). Biaxial crystals, negative light, refractive index, Ng = 1.588, Nm = 1.584, Np = 1.551, b = Ng. Crystallization formula: (Cs_ (0.83) K_ (0.06) Rb_ (0.01)) _ (0.95) (Al_ (1.64) Mg_ (0.22) Fe_ (0.17) Li_ (0.15)) _ (2.18) (0.84) _4O_ (10)] [(OH) _ (1.78) F_ (0.21] _2. Nanpingshi is a monoclinic with 2M_1 polytype with space group C2 / c. ), b = 8.86 (1), c = 21.42 (1), β = 95.72 (2) °, V = 1012.3-3, Z = 4. The thermal analysis showed that the endothermic valley was only 920 ℃, About 3.3%. Infrared absorption band wave number (cm ~ (-1)) is 3634,3429,1625,1083,1018,911,823,788,741,663,515,467,420,350.