Help on Dana Classification : Dana Classif. : Dana Code:2.12.6.1
Dana Class:2 - Sulfide Minerals
Dana Type:2.12 - Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:2
Dana Group:2.12.6 - 
 
CodeMineralFormulaH-M SymbolSpace Group
2.12.6.1Glaucodot(Co,Fe)AsS2/m 2/m 2/mCmmm
2.12.6.2Alloclasite(Co,Fe)AsS2 2 2P22121
 
Help on Strunz Class: Strunz Classif. : Strunz Code:II/D.22-20
Strunz Class:II - Sulfides and sulphosalts
Strunz Type:II/D - Sulfides with metal: sulfur, selenium and tellurium Greigite Fe++Fe+++2S4 Fd3m 4/m -3 2/m
Strunz Group:II/D.22 - Arsenopyrite series
 
CodeMineralFormulaH-M SymbolSpace Group
II/D.22-10ArsenopyriteFeAsS2/mP21/c
II/D.22-20Glaucodot(Co,Fe)AsS2/m 2/m 2/mCmmm
II/D.22-30GudmunditeFeSbS2/mP21/n
II/D.22-40RuarsiteRuAsS2/mP21/c
II/D.22-50Osarsite(Os,Ru)AsS2/mP21/c
II/D.22-60Alloclasite(Co,Fe)AsS2 2 2P22121