Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Rick W. Turner"'
Autor:
Nikita V. Chukanov, Anatoly N. Zaitsev, Rick W. Turner, John Spratt, Michael S. Rumsey, Yury S. Polekhovsky, Oleg I. Siidra, Diana O. Nekrasova
Publikováno v:
Mineralogical Magazine. 82:1211-1224
The new mineral somersetite, has been found at Torr Works (‘Merehead quarry’) in Somerset, England, United Kingdom. Somersetite is green or white (typically it is similar visually to hydrocerussite-like minerals but with a mint-green tint), forms
Autor:
Nikita V. Chukanov, Oleg I. Siidra, Rick W. Turner, Diana O. Nekrasova, Wulf Depmeier, Anatoly N. Zaitsev
Publikováno v:
Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials. 74:182-195
White lead or basic lead carbonate, 2PbCO3·Pb(OH)2, the synthetic analogue of hydrocerussite Pb3(OH)2(CO3)2, has been known since antiquity as the most frequently used white paint. A number of different minerals and synthetic materials compositional
Autor:
Rick W. Turner, Oleg I. Siidra, Evgenii V. Nazarchuk, G. A. Karpov, Evgeniya Yu. Avdontseva, Stanislav K. Filatov, Evgeniya A. Lukina, Anatoly N. Zaitsev, Natalia S. Vlasenko, Lidiya P. Vergasova
Publikováno v:
European Journal of Mineralogy. 29:499-510
Typical characteristics of many anhydrous sulphates of exhalative origin at fumaroles at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia, are the presence of additional
Autor:
John Spratt, Anatoly N. Zaitsev, Vladimir V. Shilovskikh, Atali A. Agakhanov, Oleg I. Siidra, Vadim M. Kovrugin, Rick W. Turner
Publikováno v:
European Journal of Mineralogy. 28:137-145
Pottsite from the Linka mine (Nevada, USA) was studied by scanning electron microscopy, energy- and wavelength-dispersive analyses, and single-crystal X-ray diffraction. The formula, calculated on the basis of (V + As) = 4, shows that the Pb/Bi atomi
Publikováno v:
American Mineralogist. 98:248-255
The crystal structure of hereroite, a new complex lead oxychloride mineral from the Kombat Mine, Grootfontein, Namibia, has been solved by direct methods and refined to R 1 = 0.054 for 6931 unique observed reflections. The mineral is monoclinic C 2/
Publikováno v:
American Mineralogist. 98:256-261
The crystal structure of vladkrivovichevite, a new complex lead oxychloride mineral from the Kombat Mine, Grootfontein, Namibia, has been solved by direct methods and refined to R 1 = 0.048 for 3801 unique observed reflections. The mineral is orthorh
Publikováno v:
Mineralogical Magazine. 76:1247-1255
Rumseyite, ideally [Pb2OF]Cl, is a new mineral species which is associated with calcite, cerussite, diaboleite, hydrocerussite and undifferentiated Mn oxides in a small cavity in 'hydrocerussite' from a manganese pod at Merehead quarry, Somerset, Eng
Autor:
Michael S. Rumsey, Chris J. Stanley, John Spratt, Rick W. Turner, Oleg I. Siidra, Sergey V. Krivovichev
Publikováno v:
Mineralogical Magazine. 76:883-890
Two new lead oxychloride minerals, hereroite [Pb32(O, ☐)21](AsO4)2((Si,As,V,Mo)O4)2Cl10 and vladkrivovichevite [Pb32O18][Pb4Mn2O]Cl14(BO3)8·2H2O occur in association with asisite, damaraite, kombatite, sahlinite, copper, quartz, barysilite, Mn sil
Publikováno v:
Mineralogical Magazine. 73:103-117
The crystal structure of mereheadite (monoclinic, Cm, a = 17.372(1), b = 27.9419(19), c = 10.6661(6) Å, β = 93.152(5)°, V = 5169.6(5) Å3) has been solved by direct methods and refined to R1 = 0.058 for 6279 unique observed reflections. The struct
Publikováno v:
Mineralogical Magazine. 72:793-798
The crystal structure of chloroxiphite, Pb3CuO2(OH)2Cl2, from Merehead Quarry (monoclinic, P21/m, a = 6.6972(8), b = 5.7538(5), c = 10.4686(14) Å,β = 97.747(10)°, V = 399.72(8) Å3) has been refined to R1 = 0.041. The structure contains three symm