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Swinefordite

Type Locality
Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA
Mineral Data
Li(Al,Li,Mg)4((Si,Al)4O10)2(OH,F)4·nH2O
Strunz: 
9.EC.45
Physical Properties
Streak: 
White
Hardness: 
1.0