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MINERAL CLASSIFICATION / SYSTEMATIK der MINERALE

           based on E.H. Nickel & M.C. Nichols (2009), H. Strunz & E.H. Nickel (2001),
           revised by Thomas Witzke (2022)



4. OXIDES, HYDROXIDES
(Oxides, Hydroxides, V[5,6]-Vanadates, Arsenites, Antimonites, Bismutites, Sulfites, Selenites, Tellurites, Iodates)


4.E: Metal : Oxygen < 1 : 2


4.EA. Metal : Oxygen = 1 : 2.25
 
4.EA.005. Colchesterite
 
Colchesterite Bi3+2Mo6+2O9 mon., P21/n IMA 2023-053



 
 
4.EB. Metal : Oxygen = 1 : 2.5
 
4.EB.005. Tantite
 
Tantite Ta2O5 tric. IMA 1982-066



 
 
4.EC. Metal : Oxygen = 1 : 3
 
4.EC.005. Molybdite
 
Molybdite MoO3 orth., Pbnm FOTO Rd



 
4.EB.010. Liguowuite
 
Liguowuite WO3 mon., P21/n IMA 2020-097



 
 

G = Grandfathered minerals: original description preceded the establishment of the CNMNC in 1959, and generally regarded as a valid species
A or IMA No. = Minerals approved by the CNMNC
Rd = Redefinition of the mineral approved by the CNMNC
Rn = Renamed with approval by the CNMNC
Q = Questionable mineral


© Thomas Witzke (2023)


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