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Clinomimetite

Big Photo

Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany
© Thomas Witzke

Show Clinomimetite Photos (7)
Formula:
Pb
 
5
[Cl|(AsO
 
4
)
 
3
]
System:MonoclinicColour:Pale greenish yellow, ...
Lustre:Sub-AdamantineHardness:4
Name:For its monoCLINic structure and chemical identity with mimetite.
Dimorph of:Mimetite


Apatite Group.

Classification of Clinomimetite

IMA status:Approved 1990
Strunz 8th edition ID:7/B.39-165
Nickel-Strunz 10th (pending) edition ID:8.BN.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
N : With only large cations, (OH, etc.):RO4 = 0.33:1
Dana 7th edition ID:41.8.6.1
Dana 8th edition ID:41.8.6.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : A5(XO4)3Zq
Hey's CIM Ref.:22.2.11

22 : Phosphates, Arsenates or Vanadates with other Anions
2 : Phosphates, arsenates or vanadates with chloride
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Type Occurrence of Clinomimetite

Type Locality:Treue Freundschaft Mine, Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany
Year of Discovery:1991

Physical Properties of Clinomimetite

Lustre:Sub-Adamantine
Colour:Pale greenish yellow, white.
Streak:White
Hardness (Mohs):4

Crystallography of Clinomimetite

Crystal System:Monoclinic
Cell Parameters:a = 10.19Å, b = 20.37Å, c = 7.46Å
β = 119.9°
Ratio:a:b:c = 0.5 : 1 : 0.366
Unit Cell Volume:V 1,342.37 ų (Calculated from Unit Cell)

Optical Data of Clinomimetite

Type:Biaxial (-)
Dispersion:extreme

Chemical Properties of Clinomimetite

Formula:
Pb
 
5
[Cl|(AsO
 
4
)
 
3
]
Essential elements:As, Cl, O, Pb
All elements listed in formula:As, Cl, O, Pb
Common Impurities:Ca,Si,S,P

Relationship of Clinomimetite to other Species

Member of Group:
Apatite Supergroup:
A
 
5
(XO
 
4
)
 
3
Z
 
q
Related Minerals - Nickel-Strunz Grouping):

- +
8.BN.05Alforsite
Ba
 
5
[Cl|(PO
 
4
)
 
3
]
8.BN.05Belovite-(Ce)
NaSr
 
3
(Ce,La)[(F,OH)|(PO
 
4
)
 
3
]
8.BN.05Carbonate-rich Apatite-(CaF)
Ca
 
5
[(F,O)|(PO
 
4
,CO
 
3
)
 
3
]
8.BN.05Carbonate-rich Apatite-(CaOH)
Ca
 
5
[(OH,O)|(PO
 
4
,CO
 
3
)
 
3
]
8.BN.05Apatite-(CaCl)
Ca
 
5
[Cl|(PO
 
4
)
 
3
]
8.BN.05Fermorite
(Ca,Sr)
 
5
(AsO
 
4
,PO
 
4
)
 
3
(OH)
8.BN.05Apatite-(CaF)
Ca
 
5
[F|(PO
 
4
)
 
3
]
8.BN.05Hedyphane
Pb
 
3
Ca
 
2
[Cl|(AsO
 
4
)
 
3
]
8.BN.05Apatite-(CaOH)
Ca
 
5
[OH|(PO
 
4
)
 
3
]
8.BN.05Johnbaumite
Ca
 
5
[OH|(AsO
 
4
)
 
3
]
8.BN.05Mimetite
Pb
 
5
[Cl|(AsO
 
4
)
 
3
]
8.BN.05Morelandite
(Ba,Ca,Pb)
 
5
[Cl|(AsO
 
4
,PO
 
4
)
 
3
]
8.BN.05Pyromorphite
Pb
 
5
[Cl|(PO
 
4
)
 
3
]
8.BN.05Apatite-(SrOH)
(Sr,Ca)
 
5
(PO
 
4
)
 
3
(OH,F)
8.BN.05Svabite
Ca
 
5
[(F,Cl,OH)|(AsO
 
4
)
 
3
]
8.BN.05Turneaureite
Ca
 
5
[Cl|(AsO
 
4
,PO
 
4
)
 
3
]
8.BN.05Vanadinite
Pb
 
5
[Cl|(VO
 
4
)
 
3
]
8.BN.05Belovite-(La)
NaSr
 
3
(La,Ce)[(F,OH)|(PO
 
4
)
 
3
]
8.BN.05Deloneite-(Ce)
NaCa
 
2
SrCe(PO
 
4
)
 
3
F
8.BN.05Fluorcaphite
(Ca,Sr,Ce,Na)
 
5
[F|(PO
 
4
)
 
3
]
8.BN.05Kuannersuite-(Ce)
NaBa
 
3
(Ce,Nd,La)[(F,Cl)|(PO
 
4
)
 
3
]
8.BN.05Apatite-(CaOH)-M
(Ca,Na)
 
3
Ca
 
2
[(OH,Cl)|(PO
 
4
,SO
 
4
)
 
3
]
8.BN.05Phosphohedyphane
Pb
 
3
Ca
 
2
[Cl|(PO
 
4
)
 
3
]
8.BN.05IMA2008-009
Sr
 
5
(PO
 
4
)
 
3
F
8.BN.05IMA2008-068
Ca
 
2
Pb
 
3
(PO
 
4
)
 
3
F
8.BN.10Arctite
Na
 
2
Ca
 
4
(PO
 
4
)
 
3
F
Related Minerals - Hey's Index Grouping:

- +
22.2.1Sampleite
NaCaCu
 
5
[Cl|(PO
 
4
)
 
4
] · 5H
 
2
O
22.2.2Lavendulan
NaCaCu
 
5
[Cl|(AsO
 
4
)
 
4
] · 5H
 
2
O
22.2.3Apatite-(CaCl)
Ca
 
5
[Cl|(PO
 
4
)
 
3
]
22.2.4Turneaureite
Ca
 
5
[Cl|(AsO
 
4
,PO
 
4
)
 
3
]
22.2.5Shubnikovite
Ca
 
2
Cu
 
8
[Cl|OH|(AsO
 
4
)
 
6
] · 7H
 
2
O
22.2.6Richelsdorfite
Ca
 
2
Cu
 
5
Sb[Cl|(OH)
 
6
|(AsO
 
4
)
 
4
] · 6H
 
2
O
22.2.7Alforsite
Ba
 
5
[Cl|(PO
 
4
)
 
3
]
22.2.8Morelandite
(Ba,Ca,Pb)
 
5
[Cl|(AsO
 
4
,PO
 
4
)
 
3
]
22.2.9Pyromorphite
Pb
 
5
[Cl|(PO
 
4
)
 
3
]
22.2.10Mimetite
Pb
 
5
[Cl|(AsO
 
4
)
 
3
]
22.2.12Sahlinite
Pb
 
14
[O
 
9
|(AsO
 
4
)
 
2
|Cl
 
4
]
22.2.13Georgiadèsite
Pb
 
16
[(OH)
 
6
|Cl
 
14
|(AsO
 
4
)
 
4
]
22.2.14Vanadinite
Pb
 
5
[Cl|(VO
 
4
)
 
3
]
22.2.15Kombatite
Pb
 
14
[O
 
9
|(VO
 
4
)
 
2
|Cl
 
4
]
22.2.16Leningradite
PbCu
 
3
[Cl|VO
 
4
]
 
2
22.2.17Hedyphane
Pb
 
3
Ca
 
2
[Cl|(AsO
 
4
)
 
3
]
22.2.18Nealite
Pb
 
4
Fe
2+
 
[Cl
 
2
|AsO
 
3
]
 
2
 · 2H
 
2
O

Other Names for Clinomimetite

Synonyms:
IMA1990-043IMA1990-043a
Other Languages:
German:Klinomimetesit
Russian:Клиномиметит
Spanish:Clinomimetita

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 Clinomimetite

Reference List:Dai, Y. (1993). Clinomimetite. The history and substantiation of the natural monoclinic dimorph of mimetite. Mineralogical Record: 24, 307-310.

Dai, Y., J. M. Hughes & P. B. Moore (1991): The crystal structures of mimetite and clinomimetite, Pb5(AsO4)Cl: Canadian Mineralogist: 29, 369-376.

Internet Links for Clinomimetite

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

    Hide Locality List
    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.
    (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.
    Germany
     
    • Rhineland-Palatinate
      • Westerwald
        • Wied Iron Spar District
          • Altenkirchen
            • Bürdenbach
    		[Mineralogical Record 1993 307-310]
    • Saxony
      • Erzgebirge
        • Johanngeorgenstadt District
          • Johanngeorgenstadt
    		[Mineralogical Record 1993 307-310; Wittern: "Mineralfundorte in Deutschland", 2001]
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
    		No reference listed
          • Plaka
            • Plaka Mines
    		No reference listed
          • Sounion Area
            • Agia Varvara Mines (St Barbara Mines)
    		Lapis, 24, 7/8, (1999)
    No reference listed
            • Sounion Mines
    		Lapis, 24, 7/8 (1999)
          • Soureza area
    		No reference listed
    USA
     
    • Utah
      • Juab Co.
        • East Tintic Mts
          • Tintic District
    		UGMS Bull 117 Minerals and Mineral Localities of Utah and Min Rec 1993 p 307-310
    Mineral and/or Locality
    Google
     
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