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Thorikosite

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Passa Limani Cove slag locality, Passa Limani area, Lavrion District slag localities, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece
© Thomas Witzke

Show Thorikosite Photos (10)
Formula:
Pb
 
3
[OH|(SbO
 
3
,AsO
 
3
)|Cl
 
2
]
System:TetragonalColour:Light yellow
Hardness:3
Name:Named after the ancient town of Thorikos, near the discovery locality.


Nadorite Group.

Classification of Thorikosite

IMA status:Approved 1984
Strunz 8th edition ID:3/D.10-90
Nickel-Strunz 10th (pending) edition ID:3.DC.40

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
C : With Pb (As,Sb,Bi), without Cu
Dana 8th edition ID:10.2.6.1

10 : OXYHALIDES AND HYDROXYHALIDES
2 : A(O,OH)Xq
Hey's CIM Ref.:24.3.7

24 : Antimonates and Antimonites
3 : Antimonates of Ti and Pb
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Type Occurrence of Thorikosite

Co-type Localities:Passa Limani Cove slag locality, Passa Limani area, Lavrion District slag localities, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece
Thorikos Bay slag locality, Thorikos area, Lavrion District slag localities, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece

Physical Properties of Thorikosite

Lustre:Vitreous, Waxy
Colour:Light yellow
Hardness (Mohs):3

Crystallography of Thorikosite

Crystal System:Tetragonal
Cell Parameters:a = 3.91Å, c = 12.85Å
Ratio:a:c = 1 : 3.286
Unit Cell Volume:V 196.45 ų (Calculated from Unit Cell)

Chemical Properties of Thorikosite

Formula:
Pb
 
3
[OH|(SbO
 
3
,AsO
 
3
)|Cl
 
2
]
Essential elements:Cl, H, O, Pb, Sb
All elements listed in formula:As, Cl, H, O, Pb, Sb

Relationship of Thorikosite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
3.DC.05Laurionite
PbClOH
3.DC.05Paralaurionite
PbClOH
3.DC.10Fiedlerite
Pb
 
3
Cl
 
4
F(OH)·H
 
2
O
3.DC.15Penfieldite
Pb
 
2
[OH|Cl
 
3
]
3.DC.20Laurelite
Pb(F,Cl,OH)
 
2
3.DC.25Bismoclite
BiOCl
3.DC.25Daubréeite
BiO(OH,Cl)
3.DC.25Matlockite
PbFCl
3.DC.25Rorisite
CaFCl
3.DC.25Zavaritskite
BiOF
3.DC.25Zhangpeishanite
BaFCl
3.DC.30Nadorite
PbSb[O
 
2
|Cl]
3.DC.30Perite
PbBi[O
 
2
|Cl]
3.DC.35Aravaipaite
Pb
 
3
[F
 
3
|AlF
 
6
] · H
 
2
O
3.DC.37Calcioaravaipaite
PbCa
 
2
[(F,OH)
 
3
|AlF
 
6
] · H
 
2
O
3.DC.45Mereheadite
Pb
 
2
[O|OH|Cl]
3.DC.50Blixite
Pb
 
2
[(O,OH)
 
2
|Cl]
3.DC.55Pinalite
Pb
 
3
WO
 
3
Cl
 
2
3.DC.60Symesite
Pb
 
10
[O
 
7
|SO
 
4
|Cl
 
4
] · H
 
2
O
3.DC.65Ecdemite
Pb
 
6
[As
 
2
O
 
7
|Cl
 
4
]
3.DC.65Heliophyllite
Pb
 
3
AsO
 
4-n
Cl
 
2n+1
3.DC.70Mendipite
Pb
 
3
[O
 
2
|Cl
 
2
]
3.DC.75Damaraite
Pb
 
3
[O
 
2
|OH|Cl]
3.DC.80Onoratoite
Sb
 
8
O
 
11
Cl
 
2
3.DC.85Cotunnite
PbCl
 
2
3.DC.90Pseudocotunnite
K
 
2
PbCl
 
4
3.DC.95Barstowite
Pb
 
4
[Cl
 
6
|CO
 
3
] · H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
24.3.1Lewisite
(Ca,Fe,Na)
 
2
(Sb,Ti)
 
2
(O,OH)
 
7
24.3.2Derbylite
(Fe,Fe,Ti)
 
7
SbO
 
13
(OH)
24.3.3Hemloite
(As,Sb)
 
2
(Ti,V,Fe,Al)
 
12
O
 
23
OH
24.3.4Nadorite
PbSb[O
 
2
|Cl]
24.3.5Bindheimite
Pb
 
2
Sb
 
2
O
 
6
(O,OH)
24.3.6Monimolite
(Pb,Ca,Fe)
 
3
Sb
 
2
O
 
7

Other Names for Thorikosite

Synonyms:
IMA1984-013
Other Languages:
German:Thorikosit
Russian:Торикосит
Spanish:Thorikosita

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 Thorikosite

Reference List:American Mineralogist (1972): 57: 389-395.

American Mineralogist (1985): 70: 845-848.

Articles/Blogs about Thorikosite

Internet Links for Thorikosite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Thorikosite in the Natural History Museum (London) online catalogue
  • Thorikosite details from Handbook of Mineralogy (PDF)
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    Localities for Thorikosite

    (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.
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
    		Schnorrer-Köhler, G. (1986): Neufunde in den Schlacken von Lavrion. LAPIS 11 (6), 25-29
          • Passa Limani area
    		Gelaude, Piet, van Kalmthout, Piet, and Rewitzer, Christian (1996) Laurion: The Minerals of the Ancient Slags, Janssen Print, Nijmegen, The Netherlands
          • Thorikos area
    		Gelaude, Piet, van Kalmthout, Piet and Rewitzer, Christian (1996) Laurion: The Minerals in the Ancient Slags, Janssen Print, Nijmegen, The Netherlands
    Italy
     
    • Tuscany
      • Livorno Province
        • Piombino
    		Muenchener Micromounter-Lithothek
    Mineral and/or Locality
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