Browsing ELibrary by Subject "Tajikistan"

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A NOVEL [SI18O45]18- SHEET IN THE CRYSTAL STRUCTURE OF ZERAVSHANITE, CS4 NA2 ZR3 [SI18O45] (H2O )2

Uvarova Y.A.; Sokolova E.; Hawthorne F.C.; Pautov L.A.; Agakhanov A.A. (2004)

The crystal structure of zeravshanite, ideally Cs4 Na2Zr3 (Si18O45 (H2O)2, monoclinic, a 26.3511(8), b 7.5464(3), c 22.9769(8) Å, β 107.237(1)°, V 4363.9(4) Å3, space group C2/c, Z=4, D(calc.) = 3.170 g.cm-3, was solved ...
MALEEVITE, BAB2SI2O8, AND PEKOVITE, SRB2SI2O8, NEW MINERAL SPECIES FROM THE DARA-I-PIOZ ALKALINE MASSIF, NORTHERN TAJIKISTAN: DESCRIPTION AND CRYSTAL STRUCTURE

Pautov L.A.; Agakhanov A.A.; Sokolova E.; Hawthorne F.C. (2004)

Maleevite, ideally Ba B-2 Si-2 O-8, and pekovite, ideally Sr B-2 Si-2 O-8, are two new mineral species found in boulders in the moraine of the Dara-i-Pioz glacier, the Alai range, Tien Shan, Garmskii district, northern ...
THE CRYSTAL STRUCTURE OF ARAPOVITE, U4+ (CA, NA)2 (K1-X↔X) [SI8 O20], X ≈ 0.5, A NEW MINERAL SPECIES OF THE STEACYITE GROUP FROM THE DARA-I-PIOZ MORAINE, TIEN-SHAN MOUNTAINS, TAJIKISTAN

Uvarova Y.A.; Sokolova E.; Hawthorne F.C.; Agakhanov A.A.; Pautov L.A. (2004)

The crystal structure of arapovite, ideally U4+ (Ca,Na)2 (K1– x □ x ) [Si8 O20], x ≈ 0.5, tetragonal, a 7.5505(4), c 14.7104(9) A, V 838.6(1) A3, space group P 4 /mcc , Z = 2, D calc. 3.365 g/cm3, was refined to an R 1 ...
THE CRYSTAL STRUCTURE OF MOSKVINITE-(Y), NA2 K (Y, REE) [SI6O15], A NEW SILICATE MINERAL WITH [SI6O15] THREE-MEMBERED DOUBLE RINGS FROM THE DARA-I-PIOZ MORAINE, TIEN-SHAN MOUNTAINS, TAJIKISTAN

Sokolova E.; Hawthorne F.C.; Pautov L.A.; Agakhanov A.A. (2003)

The crystal structure of moskvinite-(Y), ideally Na2 K (Y,REE) [Si6O15], from the moraine of the Dara-i-Pioz glacier, the Alai mountain range, Tien-Shan mountains, northern Tajikistan, a 10.623(2), b 14.970(2), c 8.553(1) ...

Browsing ELibrary by Subject "Tajikistan"

Browsing ELibrary by Subject "Tajikistan"

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