Domain twinning of Laihunite has been investigated based on diffraction phenomenon, and its erystal structure has then been refined. Spaee group with respect to the domain is P2/b, and cell parameters a=4.812, b = 10....Domain twinning of Laihunite has been investigated based on diffraction phenomenon, and its erystal structure has then been refined. Spaee group with respect to the domain is P2/b, and cell parameters a=4.812, b = 10.211, c = 5.813(A), a=90.87° Atomic coordinate and bend length have been recalculated. Diseussions are given to the Fe^2+ distribution, lattice distortion, degree of order of Laihunite and the relationship of this mineral with fayalite and ferrifayalite. The authors still hold that Laihunite should be eonsidered a new silicate mineral with dominant Fe^3+ and less amount of Fe^2+.展开更多
文摘Domain twinning of Laihunite has been investigated based on diffraction phenomenon, and its erystal structure has then been refined. Spaee group with respect to the domain is P2/b, and cell parameters a=4.812, b = 10.211, c = 5.813(A), a=90.87° Atomic coordinate and bend length have been recalculated. Diseussions are given to the Fe^2+ distribution, lattice distortion, degree of order of Laihunite and the relationship of this mineral with fayalite and ferrifayalite. The authors still hold that Laihunite should be eonsidered a new silicate mineral with dominant Fe^3+ and less amount of Fe^2+.
