Yusupovite, Na2Zr(Si6O15)(H2O)3, a new mineral species from the Darai-Pioz alkaline massif and its implications as a new microporous filter for large ions

2015 ◽  
Vol 100 (7) ◽  
pp. 1502-1508 ◽  
Author(s):  
Atali A. Agakhanov ◽  
Leonid A. Pautov ◽  
Vladimir Y. Karpenko ◽  
Elena Sokolova ◽  
Yassir A. Abdu ◽  
...  
Keyword(s):  
Mineral Species ◽  
New Mineral ◽  
New Mineral Species ◽  
Alkaline Massif

KIRCHHOFFITE, CsBSi2O6, A NEW MINERAL SPECIES FROM THE DARAI-PIOZ ALKALINE MASSIF, TAJIKISTAN: DESCRIPTION AND CRYSTAL STRUCTURE

2012 ◽  
Vol 50 (2) ◽  
pp. 523-529 ◽  
Author(s):  
A. A. Agakhanov ◽  
L. A. Pautov ◽  
V. Y. Karpenko ◽  
E. Sokolova ◽  
F. C. Hawthorne
Keyword(s):  
Crystal Structure ◽  
Mineral Species ◽  
New Mineral ◽  
New Mineral Species ◽  
Alkaline Massif

CERITE-(La), (La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3[SiO3(OH)]4(OH)3, A NEW MINERAL SPECIES FROM THE KHIBINA ALKALINE MASSIF: OCCURRENCE AND CRYSTAL STRUCTURE

2002 ◽  
Vol 40 (4) ◽  
pp. 1177-1184 ◽  
Author(s):  
Y. A. Pakhomovsky ◽  
Y. P. Men'shikov ◽  
V. N. Yakovenchuk ◽  
G. Yu. Ivanyuk ◽  
S. V. Krivovichev ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Mineral Species ◽  
New Mineral ◽  
New Mineral Species ◽  
Alkaline Massif

KRIVOVICHEVITE, Pb3[Al(OH)6](SO4)(OH), A NEW MINERAL SPECIES FROM THE LOVOZERO ALKALINE MASSIF, KOLA PENINSULA, RUSSIA

2007 ◽  
Vol 45 (3) ◽  
pp. 451-456
Author(s):  
V. N. Yakovenchuk ◽  
Y. A. Pakhomovsky ◽  
Y. P. Men'shikov ◽  
J. A. Mikhailova ◽  
G. Yu. Ivanyuk ◽  
...  
Keyword(s):  
Kola Peninsula ◽  
Mineral Species ◽  
New Mineral ◽  
New Mineral Species ◽  
Alkaline Massif

Mozartite, CaMn(OH)SiO 4 , a new mineral species from the Cerchiara Mine, northern Apennines, Italy

1993 ◽  
Vol 31 (2) ◽  
pp. 331-336 ◽  
Author(s):  
R. Brasso ◽  
G. Lucchetti ◽  
L. Zefiro ◽  
A. Palenzona
Keyword(s):  
Northern Apennines ◽  
Mineral Species ◽  
New Mineral ◽  
New Mineral Species

Coiraite, (Pb,Sn2+)12.5As3Fe2+Sn4+5 S28: a franckeite-type new mineral species from Jujuy Province, NW Argentina

2008 ◽  
Vol 72 (5) ◽  
pp. 1083-1101 ◽  
Author(s):  
W. H. Paar ◽  
Y. Moëlo ◽  
N. N. Mozgova ◽  
N. I. Organova ◽  
C. J. Stanley ◽  
...  
Keyword(s):  
Low Temperature ◽  
Microprobe Analysis ◽  
Electron Microprobe Analysis ◽  
Mineral Species ◽  
New Mineral ◽  
Hydrothermal Solutions ◽  
X Ray ◽  
New Mineral Species ◽  
Primary Mineral ◽  
The Ideal

AbstractCoiraite, ideally (Pb,Sn2+)12.5As3Fe2+Sn4+S28, occurs as an economically important tin ore in the large Ag-Sn-Zn polymetallic Pirquitas deposit, Jujuy Province, NW-Argentina. The new mineral species is the As derivative of franckeite and belongs to the cylindrite group of complex Pb sulphosalts with incommensurate composite-layered structures. It is a primary mineral, frequently found in colloform textures, and formed from hydrothermal solutions at low temperature. Associated minerals are franckeite, cylindrite, pyrite-marcasite, as well as minor amounts of hocartite, Ag-rich rhodostannite. arsenopyrite and galena. Laminae of coiraite consist of extremely thin bent platy crystals up to 50 urn long. Electron microprobe analysis (n = 31) gave an empirical formula Pb11.21As2.99Ag0.13Fe1.10Sn6.13S28.0 close to the ideal formula (Pb11.3Sn2+1.2)Σ=12.5As3Fe2+Sn4+S28. Coiraite has two monoclinic sub-cells, Q (pseudotetragonal) and H (pseudohexagonal). Q: a 5.84(1) Å, b 5.86(1) Å, c 17.32(1) Å, β 94.14(1)°, F 590.05(3) Å3, Z = 4, a:b:c = 0.997:1:2.955; H (orthogonal setting): a 6.28(1) Å, b 3.66(1) Å, c 17.33(1) Å, β 91.46(1)°, V398.01(6) Å3, Z = 2, a∶b∶c = 1.716∶1∶4.735. The strongest Debye-Scherrer camera X-ray powder-diffraction lines [d in Å, (I), (hkl)] are: 5.78, (20), (Q and H 003); 4.34, (40), (Q 004); 3.46, (30), (Q and H 005); 3.339, (20), (Q 104); 2.876, (100), (Q and H 006); 2.068, (60), (Q 220).

Sign in / Sign up

Export Citation Format

Share Document