Mineralogy Database

Sphaerobertrandite Mineral Data

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General Sphaerobertrandite Information

Help on Chemical  Formula: Chemical Formula: Be3SiO4(OH)2
Help on Composition: Composition: Molecular Weight = 152.62 gm
   Beryllium  17.07 %  Be   47.36 % BeO
   Silicon    18.59 %  Si   39.76 % SiO2
   Hydrogen    1.45 %  H    12.93 % H2O
   Oxygen     62.90 %  O
             ______        ______ 
             100.00 %      100.05 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Be2.89Si1.01O3.81(OH)2.19
Help on Environment: Environment: Found in Be-bearing pegmatites and greisens. Originally named in 1957 and revalidated in 2003.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1957 (Dana # Added)
Help on Locality: Locality: Mannepakhk Mountain,Lovozero massif, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: The name alludes to the typical spherulitic morphology and the similarity to bertrandite in the main chemical constituents.
Help on Name Pronunciation: Name Pronunciation: Sphaerobertrandite + Pronunciation Say SPHAEROBERTRANDITE