Danalite [SEP] named after
Danalite
Danalite is an iron beryllium silicate sulfide mineral with formula: FeBe(SiO)S. 
It is a rare mineral which occurs in granites, tin bearing pegmatites, contact metamorphic skarns, gneisses and in hydrothermal deposits. It occurs in association with magnetite, garnet, fluorite, albite, cassiterite, pyrite, muscovite, arsenopyrite, quartz, and chlorite.
Danalite was first described in 1866 from a deposit in Essex County, Massachusetts and named for American mineralogist James Dwight Dana (1813–1895).
It has been found in Massachusetts,
dindium alloy)
10. Danalite (Y: 1866) 09.FB.10    (IUPAC: triberyllium tetrairon(II) tritectosilicate (SiO) sulfide)
11. Danbaite (alloy: IMA1981-041) 01.AB.10b    (IUPAC: copper dizinc alloy)
12. Danburite (Y: 1839) 09.FA.65   
13. Danielsite (IMA1984-044) 02.BD.15   
14. D'ansite 07.BC.05
1. D'ansite (IMA2007 s.p., 1958) 07.BC.05    (IUPAC: henicosasodium magnesium decasulfate trichlorid)
2. D'ansite-(Fe) (IMA2011-