lithionfreier Bisilikate mil 



am I Haddam I Unity, 



onnccticut (6) I N.Hampsh.l Tracy 



Bovey- Ale 



hionhaltiger Trisilikate mi 



ppe. Mangan-Turmaline. 

 3the T.) Spec. Gew. = 3,04. 



h. = 1.12:15 = RSi-f.4RSi. 



