WebJun 8, 2024 · General Information The International Table of Crystallography: Open Crystallographic Database (OCD): Online Representation of the International Table: Mineral specific Resources Mineral database: … WebWritten by David Barthelmy, the Mineral Database contains a wealth of useful information. The crystallography page contains links to pages on each of the 32 crystal classes, including Java Applet Crystal Models, available in both mono and stereo views. ... Athena Mineral Databases A series of databases, including mineral lists, mineral search ...
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WebGeneral Trona Information. Chemical Formula: Na3 (CO3) (HCO3)•2 (H2O) Composition: Molecular Weight = 226.03 gm. Sodium 30.51 % Na 41.13 % Na 2 O. Hydrogen 2.23 % … http://webmineral.com/ shopee express subang jaya
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WebThe People of Mindat: David von Bargen. This section will highlight people who have made important contributions in different ways to mindat.org over the many years. David has been contributing to the mindat database since 2003. He has uploaded 500,000 locality minerals/rocks of which 400,000 are the latest versions. WebNov 13, 2024 · The atomic weight of sodium is 22.99 and oxygen is 16. Na = 350 x (22.99 x 2) / (22.99 x 2 +16) = 259.6 ppm O = (350 x 16) / (22.99 x 2 + 16) = 90.35 ppm So Na 2 O = 259.6 + 90.35 = 350 ppm. This checks the calculation above is good. Using the table factors: Na 2 O = 350 ppm. Na = 350 x 0.7419 = 259.7 ppm. O = 350 x (1 - 0.7419) = 90.34 ppm WebChemical Formula: (Fe++,Mg)2Al9 (Si,Al)4O20 (O,OH)4 Composition: Molecular Weight = 811.89 gm Lithium 0.09 % Li 0.18 % Li 2 O Magnesium 0.30 % Mg 0.50 % MgO Aluminum 28.91 % Al 54.63 % Al 2 O 3 Iron 9.63 % Fe 12.39 % FeO Silicon 13.49 % Si 28.86 % SiO 2 Hydrogen 0.29 % H 2.55 % H 2 O Oxygen 47.30 % O ______ ______ 100.00 % 99.11 % … shopee express taguig hub contact number