来自缅因州牛津郡格林伍德汤姆叔叔山埃蒙斯伟晶岩的锆石晶体结构

Q3 Multidisciplinary

Bulletin de la Societe Royale des Sciences de Liege Pub Date : 2021-01-01 DOI:10.25518/0037-9565.10318

P. Vignola, F. Demartin, I. Campostrini, A. Falster, W. Simmons, Raymond A. Sprague

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引用次数: 0

摘要

辉长石(Fe2+Mn2+2(PO4)2·3H2O)是花岗质伟晶岩中少见的次生磷酸盐。首次描述于Cigana伟晶岩(Conselheiro Pena，巴西)，随后仅在Berry-Havey伟晶岩(美国缅因州Androscoggin县)报道。来自缅因州牛津公司埃蒙斯伟晶岩新发现的单晶给出了以下单晶参数:A = 9.4872(19)， b = 10.121(2)， c = 8.7023(17) (Å)， V 835.6(3) (Å3)。在正交体系中，结构各向异性细化，空间群Pbna降至R = 1.6%，可以确定氢键模式。微探针化学分析和键价计算显示了所有原子位的期望值，并确定了结构中所有离子的价态。

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Crystal structure of correianevesite from the Emmons pegmatite, Uncle Tom Mountain, Greenwood, Oxford County, Maine

Correianevesite, Fe2+Mn2+2(PO4)2·3H2O, is an uncommon secondary phosphate in granitic pegmatites. Described for the first time from the Cigana pegmatite (Conselheiro Pena, Brazil), it was subsequently reported only at the Berry-Havey pegmatite (Androscoggin County, Maine, U.S.A.). A single crystal from a new occurrence at the Emmons pegmatite, Oxford Co., Maine, gave the following unit cell unit cell parameters: a = 9.4872(19), b = 10.121(2), c = 8.7023(17) (Å), V 835.6(3) (Å3). The structure was anisotropically refined in the orthorhombic system, space group Pbna down to a R = 1.6% and the hydrogen-bond pattern could be determined. Microprobe chemical analysis, and bond valence calculation show the expected values for all the atomic sites and confirmed the valence of all ions in the structure.

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来源期刊

Bulletin de la Societe Royale des Sciences de Liege Multidisciplinary-Multidisciplinary

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： The ‘Société Royale des Sciences de Liège" (hereafter the Society) regularly publishes in its ‘Bulletin" original scientific papers in the fields of astrophysics, biochemistry, biophysics, biology, chemistry, geology, mathematics, mineralogy or physics, following peer review approval.