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Study on the Crystal of Daomanite
Author(s) -
Zuxiang YU,
Hanggen WANG
Publication year - 2015
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12603
Subject(s) - orthorhombic crystal system , crystal (programming language) , crystallography , carry (investment) , mathematics , group (periodic table) , combinatorics , crystal structure , chemistry , computer science , organic chemistry , finance , economics , programming language
Abstract It was not possible to carry out a complete analyses of crystal, as the experiment by Ding and Shi et al. It's analysis precision R =0.25 or more big than this, which value are not satisfied for single crystal study, but we through many test and found the best: [ R (int)=14.5%]. The final full‐matix least‐squares refinement on F 2 converged to R 1 =0.0791 and w R 2 =0.1864 for 704 observed reflections [I 3 2s(I)]. Daomanite is orthorhombic system, space group Cmc 2 1 a =3.7520(8))Å, b =15.844 (4) Å, c =5.8516(12) Å, α=β=γ=90°. V =347.86(14)Å 3 , Z =4. Daomanite chemical formula is CuPtAsS 2 . Idealized composition Me + M 2+ M 2+ S 2 =CuS·PtAsS. There is no other similar mineral in the world.