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Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway

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Small serpentine-magnesite bodies that occur in precambrian rocks. They have been quarried for magnesite and serpentine.

Note on the mineral list: so-called "martite" from here is actually hematite (Raade, 1982).



References:
- Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97
- Raade, G. (1970): Dypingite, a new hydrous bascic carbonate of magnesium, from Norway. American Mineralogist 55, 1457-1465
- Raade, G. (1982): Die sogenannten "Martite" von Snarum (Norwegen"). Aufschluss 33: 405-407
- Eldjarn, K. (1988): Etter Neumann". NAGS-nytt 15 (1-4), 62 (in norwegian) [on a find of pyroaurite ?]

- http://www.nags.net/Nags/english/articles_werner/magnesite_modum.htm




Mineral list contains entries from the region specified including sub-localities


Mineral List:
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  Albite
    var: Oligoclase-Albite
    Reference: [Clark, 1993 - "Hey's Mineral Index"]
  		•  Antigorite
    (Mg,Fe
    2+
     
    		)
     
    3
    		[(OH)
     
    4
    		|Si
     
    2
    		O
     
    5
    		]
    Description: also as pseudomorphs after forsterite crystals
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
  		•  Aragonite
    CaCO
     
    3
    Reference: [Jøsang (1966, p. 96); Neumann (1985, p. 98).]
  		•  Biotite
    var: Anomite
    Description: as large crystals embedded in talc nodules in magnesite-dolomite
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
  		•  Brucite
    Mg(OH)
     
    2
    Reference: [Jøsang (1966, p. 96); Neumann (1985, p. 87).]
  		•  Calcite
    CaCO
     
    3
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, s 96.]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
  		•  'Chlorite Group'
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  Chrysotile
    Mg
     
    3
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
  		•  Clinochlore
    var: Leuchtenbergite
    Reference: []
    Site Photo
    Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
    © ØT
  		•  Cordierite
    (Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    5
    		O
     
    18
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  Corundum
    Al
     
    2
    		O
     
    3
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  Diaspore
    AlO(OH)
    Reference: [Jøsang (1966, p. 96); Neumann (1985, p. 87).]
  		•  Dolomite
    CaMg(CO
     
    3
    		)
     
    2
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
  		•  Dypingite (TL)
    Mg
     
    5
    		[OH|(CO
     
    3
    		)
     
    2
    		]
     
    2
    		 · 5H
     
    2
    		O
    Type Locality: Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
    Habit: As small < 0,3 mm globular aggregates forming a thin cover on serpentine
    Colour: white
    Fluorescence: light blue
    Reference: [Raade, G.(1970): "Dypingite, a new hydrous bascic carbonate of magnesium, from Norway". American Mineralogist 55, 1457-1465]
    Site Photo
    Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
     
  		•  Enstatite
    Mg
     
    2
    		[SiO
     
    3
    		]
     
    2
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  Forsterite
    Mg
     
    2
    		[SiO
     
    4
    		]
    Description: as remnants in antigorite psudomorphs after forsterite crystals
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, p 96]
    Site Photo
    Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
    © Knut Eldjarn
  		•  Hydrotalcite (TL)
    Mg
     
    6
    		Al
     
    2
    		[(OH)
     
    16
    		|CO
     
    3
    		] · 4H
     
    2
    		O
    Type Locality: Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
    Colour: white, blueish
    Reference: [Am Min 26 (1941), 295; Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
    Site Photo
    Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
    © Knut Eldjarn
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Description: as microscopic inclusions in hematite
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
  		•  'Kornerupine-Prismatine Series'
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  Kyanite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  Lizardite
    Mg
     
    3
    		[(OH)
     
    4
    		|Si
     
    2
    		O
     
    5
    		]
    Reference: [various added photos]
    Site Photo
    Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
    © Arliguie M
  		•  Magnesioferrite
    MgFe
    3+
    2
    		O
     
    4
    Reference: [Jøsang (1966, p. 95); Neumann (1985, p. 55).]
    Site Photo
    Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
    © Knut Eldjarn
  		•  Magnesite
    MgCO
     
    3
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Jøsang (1966, p. 95); Neumann (1985, p. 55).]
  		•  Manasseite (TL)
    Mg
     
    6
    		Al
     
    2
    		[(OH)
     
    16
    		|CO
     
    3
    		] · 4H
     
    2
    		O
    Type Locality: Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
    Description: The description give Snarum as locality, but it's presumably the Dypingdal locality - as for hydrotalcite.
    Reference: [Frondel (1940 and 1941); Raade (1985, p. 52).]
  		•  Phlogopite
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  Pyrite
    FeS
     
    2
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
  		•  Pyroaurite ?
    Mg
     
    6
    		Fe
    3+
    2
    		[(OH)
     
    16
    		|CO
     
    3
    		] · 4H
     
    2
    		O
    Habit: hexagonal platy crystals
    Colour: white to pale brown
    Description: Described as a pyroaurite-like mineral. Identity uncertain
    Reference: [Eldjarn, K.(1988)." Etter Neumann". NAGS-nytt 15 (1-4),62 (in norwegian)]
  		•  Quartz
    SiO
     
    2
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  Rutile
    TiO
     
    2
    Reference: [Jøssang, Ottar (1960): "Geologiske og petrologiske undersøkelser i Modumfeltet" in Norges Geologiske Undersøkelse nr 235, Oslo 1966. 91-97]
  		•  'Serpentine Group'
    D
     
    2
    		[Si
     
    2
    		O
     
    5
    		](OH)4 + or - nH
     
    2
    		O
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
    Site Photo
    Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
    © A. Michalsen
  		•  Spinel
    MgAl
     
    2
    		O
     
    4
    Reference: [Jøsang, Ottar (1966): Geologiske og petrologiske undersøkelser i Modumfeltet. Norges Geologiske Undersøkelse nr 235, 91-97]
  		•  Szaibélyite
    Mg
     
    2
    		[(OH)(B
     
    2
    		O
     
    4
    		(OH))]
    Reference: [Jøsang (1966, p. 96); Neumann (1985, p. 104).]
    Site Photo
    Dypingdal Serpentine-magnesite deposit, Snarum, Modum, Buskerud, Norway
    © Knut Eldjarn
  		•  Talc
    Mg
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]
  		•  'Tourmaline'
    AD
     
    3
    		G
     
    6
    		(BO
     
    3
    		)
     
    3
    		[T
     
    6
    		O
     
    18
    		]Y
     
    3
    		Z
    Reference: [Grew, E.S., Pertsev, N.N., Vrána, S., Yates, M.G., Shearer, C.K., and Wiedenbeck, M. (1998): Contributions to Mineralogy and Petrology 131, 22-38.]


    38 entries listed. 31 valid minerals. 3 type localities (valid minerals).

    Localities in this Region:
    Norway
     
    • Buskerud
      • Modum
        • Snarum
          • Dypingdal serpentine-magnesite deposit

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
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