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Manganese deposit, Ilfeld, Nordhausen, Harz Mts, Thuringia, Germany

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(Manganlagerstätte, Ilfeld, Nordhausen, Harz, Thüringen, Deutschland)

Famous classic Mn deposit which produced excellent manganite and pyrolusite (best specimens in old collections).
Located in the southeastern Harz mountains, about 8 km north of Nordhausen.

Note: Protected area - collecting is strictly forbidden.



References:
- Sansoni, G. (1971): Manganit von Ilfeld. Der Aufschluss, 22, 51-53.
- Siemroth, J. (1990): Manganlagerstätten von Ilfeld im Ostharz. Lapis, 15, 13-18.

- http://manganit.de/




Group 2 - Sulphides and Sulfosalts
  		• Chalcopyrite2.CB.10a
    CuFeS
     
    2
  		• Galena2.CD.10
    PbS
  		• Sphalerite2.CB.05a
    (Zn,Fe
    2+
     
    		)S
    Group 4 - Oxides and Hydroxides
  		• Cryptomelane ?4.DK.10
    K(Mn
    4+
     
    		,Mn
    2+
     
    		)
     
    8
    		O
     
    16
  		• Hausmannite4.BB.10
    MnMn
     
    2
    		O
     
    4
  		• Hematite4.CB.05
    Fe
     
    2
    		O
     
    3
  		• Manganite (TL)4.FD.15
    Mn
    3+
     
    		O(OH)
  		• Pyrolusite4.DB.05
    MnO
     
    2
  		• Quartz4.DA.05
    SiO
     
    2
  		• Romanèchite4.DK.10
    (Ba,H
     
    2
    		O)
     
    2
    		Mn
     
    5
    		O
     
    10
    Group 5 - Nitrates and Carbonates
  		• Ankerite5.AB.10
    Ca(Fe
    2+
     
    		 ,Mg,Mn
    2+
     
    		)(CO
     
    3
    		)
     
    2
  		• Aragonite5.AB.15
    CaCO
     
    3
  		• Calcite5.AB.05
    CaCO
     
    3
  		• Dolomite5.AB.10
    CaMg(CO
     
    3
    		)
     
    2
  		• Rhodochrosite ?5.AB.05
    MnCO
     
    3
  		• Siderite5.AB.05
    FeCO
     
    3
    Group 6 - Borates
  		• Warwickite ?6.AB.20
    (Mg,Fe
    2+
     
    		)
     
    3
    		Ti[O|BO
     
    3
    		]
     
    2
    Group 7 - Sulphates, Chromates, Molybdates and Tungstates
  		• Baryte7.AD.35
    BaSO
     
    4
  		• Gypsum7.CD.40
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Erythrite8.CE.40
    Co
     
    3
    		(AsO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
  		• Vanadinite8.BN.05
    Pb
     
    5
    		[Cl|(VO
     
    4
    		)
     
    3
    		]
    Group 9 - Silicates
  		• Braunite9.AG.05
    Mn
    2+
     
    		Mn
    3+
    6
    		[O
     
    8
    		|SiO
     
    4
    		]
  		• Spessartine9.AD.25
    Mn
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
  		• Sudoite9.EC.55
    (Mg,Fe
    2+
     
    		)
     
    2
    		Al
     
    3
    		[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
    Unclassified Minerals
  		• 'Wad'-


    25 entries listed. 24 valid minerals.

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