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Tolbachite

Big Photo

Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia
© Thomas Witzke

Formula:
CuCl
 
2
System:MonoclinicColour:Brown to golden-brown
Name:Named after its discovery locality, Large Fissure Tolbachik eruption near Tolbachik volcano, Kamchatka, Russia.


Lawrencite Group.

Classification of Tolbachite

IMA status:Approved 1982
Strunz 8th edition ID:3/A.07-30
Nickel-Strunz 10th (pending) edition ID:3.AB.05

3 : HALIDES
A : Simple halides, without H2O
B : M:X = 1:2
Dana 8th edition ID:9.2.8.2

9 : NORMAL HALIDES
2 : AX2
Hey's CIM Ref.:8.2.2

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
2 : Halides of Cu
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Type Occurrence of Tolbachite

Type Locality:First scoria cone, Northern Breakthrough (North Breach), Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia
Year of Discovery:1984

Physical Properties of Tolbachite

Colour:Brown to golden-brown

Crystallography of Tolbachite

Crystal System:Monoclinic
Cell Parameters:a = 6.89Å, b = 3.31Å, c = 6.82Å
β = 122.3°
Ratio:a:b:c = 2.082 : 1 : 2.06
Unit Cell Volume:V 131.47 ų (Calculated from Unit Cell)

Chemical Properties of Tolbachite

Formula:
CuCl
 
2
Essential elements:Cl, Cu
All elements listed in formula:Cl, Cu

Relationship of Tolbachite to other Species

Related to:
  • Lawrencite Group
    • Related Minerals - Nickel-Strunz Grouping):
    3.AB.10Coccinite
    HgI
     
    2
    3.AB.15Sellaite
    MgF
     
    2
    3.AB.20Chloromagnesite
    MgCl
     
    2
    3.AB.20Lawrencite
    (Fe
    2+
     
    		,Ni)Cl
     
    2
    3.AB.20Scacchite
    MnCl
     
    2
    3.AB.25Fluorite
    CaF
     
    2
    3.AB.25Frankdicksonite
    BaF
     
    2
    3.AB.30Tveitite-(Y)
    (Y, Na)
     
    6
    		Ca
     
    6
    		Ca
     
    6
    		F
     
    42
    3.AB.35Gagarinite-(Y)
    NaCaY(F,Cl)
     
    6
    3.AB.35Zajacite-(Ce)
    Na(REE
     
    x
    		Ca
     
    1-x
    		)(REE
     
    y
    		Ca
     
    1-y
    		)F
     
    6
    Related Minerals - Hey's Index Grouping:
    8.2.1Nantokite
    CuCl
    8.2.3Eriochalcite
    CuCl
     
    2
    		·2H
     
    2
    		O
    8.2.4Atacamite
    Cu
     
    2
    		[(OH)
     
    3
    		|Cl]
    8.2.5Paratacamite
    Cu
     
    3
    		(Cu,Zn)[(OH)
     
    3
    		|Cl]
     
    2
    8.2.6Botallackite
    Cu
     
    2
    		[(OH)
     
    3
    		|Cl]
    8.2.7Melanothallite
    Cu
     
    2
    		[O|Cl
     
    2
    		]
    8.2.8Calumetite
    Cu(OH,Cl)
     
    2
    		 · 2H
     
    2
    		O
    8.2.9Anthonyite
    Cu(OH,Cl)
     
    2
    		 · 3H
     
    2
    		O
    8.2.10Claringbullite
    Cu
     
    4
    		[(OH)
     
    7
    		|Cl] · nH
     
    2
    		O
    8.2.11Marshite
    CuI
    8.2.12Mitscherlichite
    K
     
    2
    		[CuCl
     
    4
    		] · 2H
     
    2
    		O
    8.2.13Ponomarevite
    K
     
    4
    		Cu
     
    4
    		[O|Cl
     
    10
    		]

    Other Names for Tolbachite

    Synonyms:
    IMA1982-067
    German names:
    Tolbachit
    Russian names:
    Толбачит
    Spanish names:
    Tolbachita

    Other Information

    Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

    References for Tolbachite

    Reference List:Doklady Akademii Nauk SSSR (1983), 270, 415-417.

    American Mineralogist (1984): 69: 408.

    American Mineralogist (1993): 78: 187-189.

    Internet Links for Tolbachite

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    Localities for Tolbachite

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    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Far-Eastern Region
      • Kamchatka Oblast'
        • Tolbachik volcano
          • Great Fissure (Main Fracture) eruption
            • Northern Breakthrough (North Breach)
    		DAN-SSSR,(1983) 270, 415-417
              • Second scoria cone
    USA
     
    • Arizona
      • Cochise Co.
        • Mule Mts
          • Warren District
    		[MinRec 24:421]
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 398; Graeme, R. (1993), Bisbee revisited, Min.Rec.: 24: 421-436.
    Mineral and/or Locality
    Google
     
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