Chemical Formula: (Mn,Mg)5Sb(As,Si)2O12
Help on Composition: Composition: Molecular Weight = 662.77 g
 
Oxygen 28.97 % O 0.00 % 0.00 %
Magnesium 2.93 % Mg 0.00 % 0.00 %
Silicon 4.24 % Si 0.00 % 0.00 %
Calcium 1.21 % Ca 0.00 % 0.00 %
Manganese 34.81 % Mn 0.00 % 0.00 %
Arsenic 11.30 % As 0.00 % 0.00 %
Antimony 16.53 % Sb 0.00 % 0.00 %

99.99 %
 
Help on Empirical Formula: Empirical Formula: Mn2+4.2Mg0.8Ca0.2Sb0.9AsSiO12
Help on Environment: Environment: In high-temperature skarn assemblage,, in recrystallized manganoan carbonate ores
Help on Locality: Locality: Langban, Varmland, Sweden.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Alexander Parwel, Swedish chemist, Swedish National History Museum, Stockholm, Sweden
Help on Synonym: Synonym: