首页> 外文期刊>Journal of mineralogical and petrological sciences >Priceite from the Fuka mine, Okayama Prefecture, Japan
【24h】

Priceite from the Fuka mine, Okayama Prefecture, Japan

机译:Priceite来自日本冈山县深井矿

获取原文
       

摘要

Priceite was found as a mass or a veinlet in crystalline limestone associated with gehlenite–spurrite skarns at the Fuka mine, Okayama Prefecture, Japan. Priceite occurs as grayish white or pale green aggregates of anhedral or prismatic crystals up to 0.5 mm in length in association with shimazakiite, sibirskite, uralborite and calcite. An electron microprobe analysis of priceite gave an empirical formula (Ca_(2.023)Mn_(0.002)Fe_(0.001)Mg_(0.001)Ni_(0.002)Co_(0.001))_(∑2.030)B_(5.033)O_(7.160)(OH)_(4.840)·H_(2)O based on O = 13. The unit cell parameters are a = 11.633(7), b = 6.977(3), c = 12.342(5) ?, β = 110.648(7)°. The calculated density is 2.486 g cm~(?3). It is likely that priceite from the Fuka mine was formed as a secondary mineral by a late–hydrothermal alteration of shimazakiite at temperature between 100 and 190 °C or less.
机译:在日本冈山县深冈市的普卡矿,发现普莱斯铁矿为晶状石灰岩中的块状或细脉状,与钠钙锰铁矿-矽卡岩矽卡岩有关。闪长石为灰白色或浅绿色的无定形或棱柱形晶体聚集体,其长度最大为0.5毫米,并与石崎石,方钠石,绢云母和方解石结合在一起。钛铁矿的电子探针分析得出经验公式(Ca_(2.023)Mn_(0.002)Fe_(0.001)Mg_(0.001)Ni_(0.002)Co_(0.001))_(∑2.030)B_(5.033)O_(7.160)(基于O = 13的OH)_(4.840)·H_(2)O。晶胞参数为 a = 11.633(7), b = 6.977(3), c = 12.342( 5)β,β= 110.648(7)°。计算出的密度为2.486g·cm·(·3)。 Fuka矿的priceite可能是通过在100至190°C或更低的温度下对shimazakiite进行后期水热蚀变而形成的次生矿物。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号