Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Matlockite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
© Brent Thorne

Show Matlockite Photos (28)



Formula:
PbFCl
System:TetragonalColour:Colourless, light yellow ...
Hardness:2½ - 3
Member of:Matlockite Group
Name:After the locality near Matlock, Derbyshire, England.


Matlockite Group.

An extremely rare secondary lead mineral.
May be confused with platy phosgenite.

Classification of Matlockite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:3/D.0-20
Nickel-Strunz 10th (pending) edition ID:3.DC.25

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
C : With Pb (As,Sb,Bi), without Cu
Dana 8th edition ID:9.2.11.1

9 : NORMAL HALIDES
2 : AX2
Hey's CIM Ref.:8.8.2

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
8 : Halides of Pb
mindat.org URL:http://www.mindat.org/min-2593.html
Please feel free to link to this page.

Type Occurrence of Matlockite

Type Locality:Cromford, Matlock, Derbyshire, England, UK
Year of Discovery:1851
Associated Minerals at type locality:
SphaleritePhosgeniteGalenaFluoriteCerussite
BaryteAnglesite

Physical Properties of Matlockite

Lustre:Adamantine, Pearly
Diaphaneity (Transparency):Transparent
Colour:Colourless, light yellow to light golden-yellow, greenish
Hardness (Mohs):2½ - 3
Cleavage:Perfect
On {001}.
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):7.12 g/cm3
Density (calculated):7.16 g/cm3

Crystallography of Matlockite

Crystal System:Tetragonal
Class (H-M):4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:P4/nmm {P4/n 21/m 2/m}
Cell Parameters:a = 4.11Å, c = 7.23Å
Ratio:a:c = 1 : 1.759
Unit Cell Volume:V 122.13 ų (Calculated from Unit Cell)
Morphology:Crystals usually tabular {001}; also as stout pyramidal crystals with smal prism faces. Subparallel aggregates of platy crystals; as hemispherical, rosette-like groups. Massive; coarsely lamellar.

Optical Data of Matlockite

Type:Uniaxial (-)
RI values: nω = 2.150 nε = 2.040
Maximum Birefringence:δ = 0.110

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Comments:Biaxial with small 2V at times, the result of subparallel growth or strain.

Chemical Properties of Matlockite

Formula:
PbFCl
Essential elements:Cl, F, Pb
All elements listed in formula:Cl, F, Pb

Relationship of Matlockite to other Species

Member of:Matlockite Group
Other Members of Group:

- +
Bismoclite
(BiO)Cl
Daubréeite
(BiO)(OH,Cl)
Laurionite
PbCl(OH)
Paralaurionite
PbCl(OH)
Rorisite
CaFCl
Zavaritskite
(BiO)F
Related Minerals - Nickel-Strunz Grouping):

- +
3.DC.05Laurionite
PbCl(OH)
3.DC.05Paralaurionite
PbCl(OH)
3.DC.10Fiedlerite
Pb
 
3
FCl
 
4
(OH) · H
 
2
O
3.DC.15Penfieldite
Pb
 
2
Cl
 
3
(OH)
3.DC.20Laurelite
Pb
 
7
F
 
12
Cl
 
2
3.DC.25Bismoclite
(BiO)Cl
3.DC.25Daubréeite
(BiO)(OH,Cl)
3.DC.25Rorisite
CaFCl
3.DC.25Zavaritskite
(BiO)F
3.DC.25Zhangpeishanite
BaFCl
3.DC.30Nadorite
PbSbClO
 
2
3.DC.30Perite
PbBiClO
 
2
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.40Thorikosite
Pb
 
3
Cl
 
2
(OH)(SbO
 
3
,AsO
 
3
)
3.DC.45Mereheadite
Pb
 
47
Cl
 
25
(OH)
 
13
O
 
24
(CO
 
3
)(BO
 
3
)
 
2
3.DC.50Blixite
Pb
 
2
(O,OH)
 
2
Cl
3.DC.55Pinalite
Pb
 
3
WO
 
5
Cl
 
2
3.DC.60Symesite
Pb
 
10
Cl
 
4
O
 
7
(SO
 
4
) · H
 
2
O
3.DC.65Ecdemite
Pb
 
6
Cl
 
4
(As
 
2
O
 
7
)
3.DC.65Heliophyllite
Pb
 
6
Cl
 
4
(As
 
2
O
 
7
)
3.DC.70Mendipite
Pb
 
3
Cl
 
2
O
 
2
3.DC.75Damaraite
Pb
 
3
Cl(OH)O
 
2
3.DC.80Onoratoite
Sb
 
8
Cl
 
2
O
 
11
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:

- +
8.8.1Abhurite
Sn
 
21
Cl
 
16
(OH)
 
14
O
 
6
8.8.3Laurelite
Pb
 
7
F
 
12
Cl
 
2
8.8.4Cotunnite
PbCl
 
2
8.8.5Mendipite
Pb
 
3
Cl
 
2
O
 
2
8.8.6Damaraite
Pb
 
3
Cl(OH)O
 
2
8.8.7Laurionite
PbCl(OH)
8.8.8Paralaurionite
PbCl(OH)
8.8.9Penfieldite
Pb
 
2
Cl
 
3
(OH)
8.8.10Fiedlerite
Pb
 
3
FCl
 
4
(OH) · H
 
2
O
8.8.11Blixite
Pb
 
2
(O,OH)
 
2
Cl
8.8.12Pseudocotunnite
K
 
2
PbCl
 
4
8.8.13Diaboleite
Pb
 
2
CuCl
 
2
(OH)
 
4
8.8.14Pseudoboleite
Pb
 
31
Cu
 
24
Cl
 
62
(OH)
 
48
8.8.15Chloroxiphite
Pb
 
3
CuO
 
2
Cl
 
2
(OH)
 
2
8.8.17Bideauxite
Pb
 
2
AgCl
 
3
(F,OH)
 
2
8.8.18Boleite
KPb
 
26
Ag
 
9
Cu
 
24
(OH)
 
48
Cl
 
62
8.8.19Aravaipaite
Pb
 
3
F
 
3
[AlF
 
6
] · H
 
2
O
8.8.20Yedlinite
Pb
 
6
Cr
3+
 
Cl
 
6
(O,OH,H
 
2
O)
 
8
8.8.21Kolarite
PbTeCl
 
2
8.8.22Hematophanite
Pb
 
4
Fe
 
3
O
 
8
(OH,Cl)

Other Names for Matlockite

Synonyms:
Matlockite (of Greg)
Other Languages:
German:Matlockit
Russian:Матлокит
Spanish:Matlockita

Other Information

Thermal Behaviour:Melting point 601°.
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 Matlockite

Reference List:

- +
Greg (1851) Philosophical Magazine and Journal of Science: 2: 120.

Rammelsberg (1852) Annalen der Physik, Halle, Leipzig: 85: 141.

Sandonnini (1911) Gazzetta chimica italiana, Rome: 41: 144.

Goldschmidt, V. (1920) Atlas der Krystallformen. 9 volumes, atlas, and text: vol. 6: 12.

Nieuwenkamp (1933) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 86: 470.

Bannister (1934) Mineralogical Magazine: 23: 587.

Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 59-60.

Pasero, M. & Perchiazzi, N.(1996): Crystal structure refinement of matlockite. Mineralogical Magazine: 60: 833-836.

Internet Links for Matlockite

Search Engines:
  • Look for Matlockite on Google
  • Look for Matlockite images on Google
    • External Links:
  • Look for Matlockite on Webmineral
  • Look for Matlockite on Athena Mineralogy
  • Look for Matlockite on Wikipedia
  • Look for Matlockite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Matlockite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Buy from David K Joyce minerals
  • Edwards Minerals - Fine Specimens
  • SpiriferMinerals.com - high quality low prices
  • Fine Minerals from Weinrich Minerals, Inc.
  • By minerals from YourMineralCollection
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Search for - Matlockite - on e-Rocks Mineral Sales & Auctions
  • High-end worldwide specimens & outstanding customer service
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Search for Matlockite from all mineral dealers at minfind.com
  • Search for minerals at Heliodor
  • Wilensky Fine Minerals
    • Specimens:The following Matlockite specimens are currently listed for sale on minfind.com.
    Jobs:
  • Mining & Geology Jobs

    • Localities for Matlockite

    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.
    Hide Locality List
    (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.
    Australia
     
    • Tasmania
      • Zeehan district
        • Zeehan
    		Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
    Austria
     
    • Carinthia
      • Friesach - Hüttenberg area
        • Hüttenberg
          • Waitschach
    		U. Kolitsch and H. Pristacz (2009): An orthorhombic dimorph of barstowite, Pb4Cl6(CO3)•H2O, from slags at Maria Waitschach, Austria, and Lavrion, Greece. Poster, Joint MinPet 2009 and 4th MSCC, Budapest, Hungary, September 7-11; abstract in Mitt. Österr. Mineral. Ges. 155, 83.
    Chile
     
    • Antofagasta Region
      • Antofagasta Province
        • Sierra Gorda District
          • Caracoles
    		Berman, Frondel & Palache
    • Tarapacá Region
      • Iquique Province
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 60.
    China
     
    • Shandong Province
      • Linyi Prefecture
        • Yimeng Mts (Yimeng Shan)
          • Mengyin Co.
            • Mengyin Kimberlite field
              • Changma Kimberlite belt
                • Wangcun deposit
    		Gorshkov, A.I., Titkov, S.V., Yan Nan Bao, Ryabchikov, I.D., and Magazina, L.O. (2006): Geology of Ore Deposits 48(4), 326-334.
    France
     
    • Languedoc-Roussillon
      • Lozère
        • Marvejols
          • St Léger-de-Peyre
    		Galvier J. et al. (1997), La mine de Sainte Lucie, Lozère (France), Le Règne Minéral, n° 18, pp: 5-36; Mineralogical Record 2011 42:0-32
    Germany
     
    • North Rhine-Westphalia
      • Ruhr Coal Mining area
        • Essen
    		Weiss: "Mineralfundstellen, Deutschland West", 1990
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
    		No reference listed
        • Lavrion District slag localities
          • Oxygon area
    		No reference listed
          • Passa Limani area
    		Gelaude, Piet, van Kalmthout, Piet, and Rewitzer, Christian (1996) Laurion: The Minerals of the Ancient Slags, Janssen Print, Nijmegen, The Netherlands
          • Sounion area
    		Elmar Lackner collection
    Gelaude, Piet, van Kalmthout, Piet and Rewitzer, Christian, (1996) Laurion: The Minerals in 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
          • Vrissaki 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
        • Campiglia Marittima
    		Int. Assoc. of Collectors of Slag Minerals, 10 (2), 4-6.
        • Piombino
    		Lapis, 20 (4), 13-18+50.
    Luigi Chiappino data
    South Africa
     
    • Gauteng Province
    		Minerals of South Africa
    UK
     
    • England
      • Cornwall
        • St Agnes District
          • Crantock
    		BMS Newsletter 79, March 2010 (http://britishmicromountsociety.homestead.com/Gannell-Smelter.html)
      • Derbyshire
        • Bolehill
    		Lapis 8(9), 35 (1983); Ford, T., A. Sarjeant & M. Smith (1993) The minerals of the Peak district of Derbyshire UK Jour. Mines & Minerals 13:16-55
        • Matlock
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 60.
      • Staffordshire
        • Ecton
          • Back of Ecton
    		XRD Univesity of Manitoba 2011
    USA
     
    • Arizona
      • Gila Co.
        • Globe-Miami District
          • Globe Hills District
            • Globe Hills
              • Burch area
                • Radium
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 141, 146, 291; Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, AZ Geol. Soc. Digest: 3: 53-56.
      • Pima Co.
        • Tohono O'odom (Papago) Indian Reservation
          • Comobabi Mts
            • Cababi District (Comobabi District)
              • Ko Vaya
                • Mildren Mine group
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 278, 291.
      • Pinal Co.
        • Mammoth District
          • Tiger
            • St. Anthony deposit
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 135, 141; Williams, S.A. (1970a), Bideauxite, a new Arizona mineral, Min.Mag.: 37: 637-640; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 44.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 291; Bideaux, R.A. (1980), Tiger, Arizona, Min.Rec.: 11: 155-181; Fahey, J.J., et al (1950), Wherryite, a new mineral from the Mammoth mine, AZ, Am.Min.: 35: 93-98.
    • Nevada
      • Elko Co.
        • Spruce Mountain District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    • South Dakota
      • Lawrence Co.
    		R&M 75:3 pp 156-169
          • Spearfish
    		SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    Zimbabwe
     
    • Mashonaland West
      • Kadoma District
    		Vetter, U., Weck, H.-D., Weale, T., Klosa, D., Wittich, C. and Hoffmann, K. (1999): A provisional inventory of the Sanyati oxide-zone minerals, Zimbabwe. Z. Angew. Geol. 45, 15-21.
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 19th Aug 2011 15:32:04
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds