Mineralogy Database

Menezesite Mineral Data

Search Webmineral :
  
Advertisment

General Menezesite Information

Help on Chemical  Formula: Chemical Formula: Ba2MgZr4(BaNb12O42)•12H2O
Help on Composition: Composition: Molecular Weight = 2,778.48 gm
   Potassium   0.75 %  K     0.90 % K2O
   Barium     10.82 %  Ba   12.09 % BaO
   Sodium      0.05 %  Na    0.07 % Na2O
   Calcium     0.45 %  Ca    0.63 % CaO
   Lanthanum   0.10 %  La    0.12 % La2O3
   Cerium      0.86 %  Ce    1.00 % Ce2O3
   Thorium     4.59 %  Th    5.23 % ThO2
   Magnesium   0.82 %  Mg    1.36 % MgO
   Zirconium   9.03 %  Zr   12.20 % ZrO2
   Uranium     0.17 %  U     0.19 % UO2
   Tantalum    2.34 %  Ta    2.86 % Ta2O5
   Titanium    5.60 %  Ti    9.34 % TiO2
   Manganese   0.45 %  Mn    0.59 % MnO
   Niobium    30.86 %  Nb   44.15 % Nb2O5
   Aluminum    0.03 %  Al    0.06 % Al2O3
   Iron        0.46 %  Fe    0.59 % FeO
   Silicon     0.12 %  Si    0.26 % SiO2
   Hydrogen    0.87 %  H     7.78 % H2O
   Neodymium   0.52 %  Nd    0.61 % Nd2O3
   Oxygen     31.09 %  O
             ______        ______ 
             100.00 %      100.02 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba1.47K0.53Ca0.31Ce0.17Nd0.1Na0.06La0.02Mg0.94Mn2+0.23Fe2+0.23Al0.03Zr2.75Ti0.96 Th0.29Ba0.72Th0.26U0.02Nb9.23Ti2.29�12(H2O)
Help on Environment: Environment: Occurs in the contact zone between dolomite carbonatite and "jacupirangite" (=a pyroxenite). First natural heteropolyniobate.
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Jacupiranga mine, Cajati County, S�o Paulo, Brazil. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Luiz Alberto Dias Menezes Filho (born 1950), mining engineer, mineral collector, and merchant
Help on Synonym: Synonym: IMA2005-023