Formula : Na1-2(Fe3+,Mn2+,Mg,Zn)3[OH/Si4O10]2 * 4-5 H2O
System: monoclinic Hardness:- Rarity:rare
Strunz id:VIII/H.33-10 -
SILICATES
Name origin: Named after its discovery locality, Tuperssuatsiait Bay, Illimaussaq complex, Narsaq municipality, Greenland.
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