Mineralogy Database

Roggianite Mineral Data

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General Roggianite Information

Help on Chemical  Formula: Chemical Formula: Ca2[Be(OH)2Al2Si4O13]•<2•5(H2O)
Help on Composition: Composition: Molecular Weight = 540.72 gm
   Calcium    14.82 %  Ca   20.74 % CaO
   Beryllium   1.67 %  Be    4.63 % BeO
   Aluminum    9.98 %  Al   18.86 % Al2O3
   Silicon    20.78 %  Si   44.45 % SiO2
   Hydrogen    1.27 %  H    11.33 % H2O
   Oxygen     51.49 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Be(OH)2Al2(Si4O13)•2.4(H2O)
Help on IMA Status: IMA Status: Approved IMA 1969
Help on Locality: Locality: Type locality: in albitite dike at Alpe Rosso in Val Vigezzo about 1.5 km south of Orcesco, Novara Province, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Aldo G. Roggiani, a teacher of natural sciences, who first found the mineral.
Help on Name Pronunciation: Name Pronunciation: Roggianite + Pronunciation Say ROGGIANITE
Help on Synonym: Synonym: Ginzburgite
  ICSD 71349
  PDF 39-366