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Ferroceladonite

Type Locality
Hokonui Hills, South Island, New Zealand
Mineral Data
K(Fe2+,Mg)(Fe3+,Al)(Si4O10)(OH)2
Strunz: 
9.EC.15
Physical Properties
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Tenacity: 
flexible