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Dana Classification System

Species awaiting classification

Mineral Formula Classification
W.  -  Species awaiting classification
Gjerdingenite-Na (K,Ba,Na)(Ti,Nb)(Si,Al)2(O,OH)7 · H2O (??)
IMA 2003-019 Na6Sr12Ba2Zr13Si39B4O123(OH)6 · 20 H2O (??)
Johnsenite-(Ce) Na12(Ce,REE,Sr)3Ca6Mn3Zr3W(Si25O73)(OH)3(CO3) · H2O (??)
/ - Discredited species under investigation
Hydroandradite (discredited)
Hypersthene (see Enstatite)
Tetranatrolite Na2Al2Si3O10 · 2H2O 77.1.5.2



Dana System Classes

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