地质学报（英文版）2006，Vol.80Issue(5)：656-659,4.
Luobusaite: A New Mineral
Luobusaite: A New Mineral
摘要
Abstract
A group of mantle minerals including about 70-80 subtypes of minerals are discovered from a podiform chromitite in Tibet, China. Recovered minerals include diamond, coesite, moissanite,wustite, Fe-silides and a new mineral, luobusaite. All of these minerals were hand-picked from heavy-mineral separates of the podiform chromitite in the mantle peridotite of an ophiolite. The grains of luobusaite are as host mineral with inclusions of native silicon or as an intergrowth with native silicon and Fe-Si phase. Luobusaite occurs as irregular grains, with 0.1-0.2 mm in size, consisting of very finegrained aggregates. The mineral is steel-grey in color, metallic luster, and opaque. The empirical formula (based on 2 for Si) is Fe0.83Si2, according to the chemical compositions of luobusaite. X-ray powder-diffraction data: orthorhombic system, space group Cmca, a = 9.874 (14) (A), b = 7.784 (5) (A), c=7.829(7) (A), Z=16.关键词
new mineral/luobusaite/chromitite/ophiolite/TibetKey words
new mineral/luobusaite/chromitite/ophiolite/Tibet分类
天文与地球科学引用本文复制引用
BAI Wenji,SHI Nicheng,FANG Qingsong,LI Guowu,XIONG Ming,YANG Jingsui,RONG He..Luobusaite: A New Mineral[J].地质学报（英文版）,2006,80(5):656-659,4.基金项目
This work was financially supported by the National Natural Science Foundation of China (Grant 40620120098 and 40472025 ). （Grant 40620120098 and 40472025 ）
