Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Matlockite

A valid IMA mineral species - grandfathered
This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About MatlockiteHide

Formula:
PbFCl
Colour:
Colourless, light yellow to light golden-yellow, greenish
Lustre:
Adamantine, Pearly
Hardness:
2½ - 3
Specific Gravity:
7.12
Crystal System:
Tetragonal
Name:
After the locality near Matlock, Derbyshire, England.
Matlockite Group.

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


Unique IdentifiersHide

Mindat ID:
2593
Long-form identifier:
mindat:1:1:2593:1
GUID
(UUID V4):
8165fc87-9b6a-4ee2-b637-09c32997b9b8

IMA Classification of MatlockiteHide

Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
PbClF
First published:
1851

Classification of MatlockiteHide

3.DC.25

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

9 : NORMAL HALIDES
2 : AX2
8.8.2

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
8 : Halides of Pb

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
MtlIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of MatlockiteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of MatlockiteHide

Adamantine, Pearly
Transparency:
Transparent
Colour:
Colourless, light yellow to light golden-yellow, greenish
Hardness:
2½ - 3 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
On {001}.
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
7.12 g/cm3 (Measured)    7.16 g/cm3 (Calculated)

Optical Data of MatlockiteHide

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

Chemistry of MatlockiteHide

Mindat Formula:
PbFCl

Crystallography of MatlockiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/nmm
Cell Parameters:
a = 4.11 Å, c = 7.23 Å
Ratio:
a:c = 1 : 1.759
Unit Cell 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.

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0017948MatlockiteNieuwenkamp W, Bijvoet J (1932) Die Kristallstruktur von Bleifluochlorid Pb F Cl _cod_database_code 1011046 Zeitschrift fur Kristallographie 81 469-47319320293
0011855MatlockiteWyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York Crystal Structures 1 294-29619630293
0014434MatlockiteBannister F A, Hey M H (1934) The crystal-structure and optical properties of matlockite (PbFCl) Mineralogical Magazine 23 587-5971934Matlock, Derbyshire, England0293
0014521MatlockitePasero M, Perchiazzi N (1996) Crystal structure refinement of matlockite Mineralogical Magazine 60 833-8361996Baratti beach, Tuscany, Italy0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.574 Å(100)
2.906 Å(45)
3.617 Å(40)
2.265 Å(40)
2.715 Å(35)
1.781 Å(25)
2.055 Å(20)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
45b : [Other oxidized fumarolic minerals]
47a : [Near-surface hydration of prior minerals]

Type Occurrence of MatlockiteHide

Place of Conservation of Type Material:
Natural History Museum, London, England, 89055.
Associated Minerals at Type Locality:
Reference:
Greg, R.P. (1851) A Description of Matlockite, a New Oxychloride of Lead. The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science: 2: 120-121.

Synonyms of MatlockiteHide

Other Language Names for MatlockiteHide

Relationship of Matlockite to other SpeciesHide

Other Members of this group:
BismocliteBiOClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
DaubréeiteBiO(OH)Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
LaurionitePbCl(OH)Orth. mmm (2/m 2/m 2/m)
ParalaurionitePbCl(OH)Mon. 2/m : B2/m
RorisiteCaFClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
Zavaritskite(BiO)FTet. 4/mmm (4/m 2/m 2/m) : P4/nmm

Common AssociatesHide

Associated Minerals Based on Photo Data:
12 photos of Matlockite associated with DiaboleitePb2CuCl2(OH)4
8 photos of Matlockite associated with PhosgenitePb2CO3Cl2
6 photos of Matlockite associated with WherryitePb7Cu2(SO4)4(SiO4)2(OH)2
6 photos of Matlockite associated with LeadhillitePb4(CO3)2(SO4)(OH)2
4 photos of Matlockite associated with ParalaurionitePbCl(OH)
4 photos of Matlockite associated with AnglesitePbSO4
3 photos of Matlockite associated with GalenaPbS
2 photos of Matlockite associated with LaurionitePbCl(OH)
2 photos of Matlockite associated with MammothitePb6Cu4AlSb5+O2(OH)16Cl4(SO4)2
2 photos of Matlockite associated with MattheddleitePb5(SiO4)1.5(SO4)1.5(Cl,OH)

Related Minerals - Strunz-mindat GroupingHide

3.DC.Lucabindiite(K,NH4)As4O6(Cl,Br)Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
3.DC.TorrecillasiteNa(As,Sb)3+4O6ClOrth.
3.DC.GajardoiteKCa0.5As3+4O6Cl2 · 5H2OHex. 6/mmm (6/m 2/m 2/m) : P6/mmm
3.DC.Cuatrocapaite-(NH₄)(NH4)3(NaMg◻)(As2O3)6Cl6 · 16H2OTrig. 3m (3 2/m) : R3m
3.DC.Cuatrocapaite-(K)K3(NaMg◻)(As2O3)6Cl6 · 16H2OTrig. 3m (3 2/m) : R3m
3.DC.NapoliitePb2OFClTet. 4/mmm (4/m 2/m 2/m) : P42/mcm
3.DC.05LaurionitePbCl(OH)Orth. mmm (2/m 2/m 2/m)
3.DC.05ParalaurionitePbCl(OH)Mon. 2/m : B2/m
3.DC.05Russoite(NH4)ClAs2O3(H2O)0.5Hex. 6 2 2 : P6 2 2
3.DC.05Mauriziodiniite(NH4)(As2O3)2IHex. 6/mmm (6/m 2/m 2/m) : P6/mmm
3.DC.10FiedleritePb3FCl4(OH) · H2OMon. 2/m
3.DC.15PenfielditePb2Cl3(OH)Hex. 6 : P6
3.DC.15TelluroperitePb3TeO4Cl2Orth. mmm (2/m 2/m 2/m)
3.DC.20LaurelitePb7F12Cl2Hex. 6 : P6
3.DC.25BismocliteBiOClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.25RorisiteCaFClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.25Zavaritskite(BiO)FTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.25ZhangpeishaniteBaFClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.DC.30NadoritePbSbClO2Orth. mmm (2/m 2/m 2/m) : Cmcm
3.DC.30PeritePbBiClO2Orth. mmm (2/m 2/m 2/m) : Cmcm
3.DC.40ThorikositePb3Cl2(OH)(SbO3,AsO3)Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DC.45MereheaditePb47Cl25(OH)13O24(CO3)(BO3)2Mon. m
3.DC.50BlixitePb8O5(OH)2Cl4Orth.
3.DC.52RumseyitePb2OClF Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DC.55PinalitePb3WO5Cl2Orth. mmm (2/m 2/m 2/m)
3.DC.55Vladkrivovichevite[Pb32O18][Pb4Mn2O]Cl14(BO3)8 · 2H2O Orth. mmm (2/m 2/m 2/m) : Pmmn
3.DC.57YeomanitePb2O(OH)ClOrth. mmm (2/m 2/m 2/m) : Pnma
3.DC.60LorettoitePb7O6Cl2Orth.
3.DC.60SymesitePb10(SO4)O7Cl4 · H2OTric. 1 : P1
3.DC.62Sarawakite (of Frenzel)Sb, O, Cl (?)
3.DC.65EcdemitePb6Cl4(As2O7)Mon. 2 : P21
3.DC.70MendipitePb3Cl2O2Orth. 2 2 2 : P21 21 21
3.DC.75DamaraitePb3Cl(OH)O2Orth. mm2 : Pmc21
3.DC.80OnoratoiteSb8Cl2O11Tric. 1 : P1
3.DC.95BarstowitePb4Cl6(CO3) · H2OMon. 2/m : P21/m

Other InformationHide

Thermal Behaviour:
Melting point 601°.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for MatlockiteHide

References for MatlockiteHide

Reference List:

Localities for MatlockiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Australia
 
  • Tasmania
    • West Coast municipality
      • Zeehan mining district
        • Zeehan mineral field
Bottrill et al. (2008)
Austria
 
  • Carinthia
    • Sankt Veit an der Glan District
      • Guttaring
        • Waitschach
abstract in Mitt. Österr. Mineral. ... +2 other references
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Sierra Gorda
        • Caracoles mining district
          • Caracoles
Berman
  • Tarapacá
    • Tamarugal Province
      • Pozo Almonte
Palache et al. (1951)
China
 
  • Shandong
    • Linyi
      • Mengyin County
        • Mengyin Kimberlite field
          • Changma Kimberlite belt
            • Wangcun deposit
Gorshkov et al. (2006)
France
 
  • Occitanie
    • Lozère
      • Mende
        • Saint-Léger-de-Peyre
Mineralogical Record 2011 42:0-32 +1 other reference
Germany
 
  • North Rhine-Westphalia
    • Düsseldorf
      • Essen
        • Dellwig
Weiß (1990)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
          • Agios Konstantinos (Kamariza)
40 (in German) +1 other reference
Fritz Schreiber collection (SXRD-analysed by Uwe Kolitsch)
Elmar Lackner collection
Gelaude et al. (1996)
Gelaude et al. (1996)
Gelaude et al. (1996)
Lacroix et al. (1908) +2 other references
Greenland
 
  • Sermersooq
    • Arsuk Fjord
      • Ivigtut stock
University of Oslo
Italy
 
  • Campania
    • Naples
      • Somma-Vesuvius Complex
M. Russo & I. Campostrini (2011) +1 other reference
Pelloux (1927) +3 other references
        • Ottaviano
Russo et al. (2011) +1 other reference
Russo et al. (2011) +1 other reference
  • Lazio
    • Metropolitan City of Rome Capital
      • Anzio
Marco Bonifazi collection
  • Piedmont
    • Cuneo Province
      • Valdieri
        • San Lorenzo
Parola et al. (2023) +1 other reference
  • Tuscany
    • Livorno Province
      • Campiglia Marittima
Int. Assoc. of Collectors of Slag Minerals (2)
      • Piombino
Franzini et al. (1992) +2 other references
      • Sassetta
        • Canina Valley
Jansen et al. (1998)
      • Suvereto
Luigi Chiappino data
Namibia
 
  • Oshikoto Region
    • Tsumeb
Bowell +1 other reference
  • Otjozondjupa Region
    • Grootfontein Constituency
110-147. +1 other reference
Russia
 
  • Chelyabinsk Oblast
Pavel M. Kartashov analytical data of ...
South Africa
 
  • Mpumalanga
    • Nkangala District Municipality
      • Victor Khanye Local Municipality
        • Delmas
Cairncross et al. (1995)
UK
 
  • England
    • Cornwall
      • Crantock
BMS Newsletter 79 (http://britishmicromountsociety.homestead.com/Gannell-Smelter.html)
    • County Durham
      • Stanhope
Norman Wilson collection
    • Derbyshire
      • Derbyshire Dales District
Greg (1851)
        • Wirksworth
Jones (1982) +1 other reference
    • Staffordshire
      • Staffordshire Moorlands
        • Wetton
          • Ecton
            • Back of Ecton
XRD Univesity of Manitoba 2011
USA
 
  • Arizona
    • Gila County
      • Globe-Miami Mining District
        • Globe Hills Mining District
          • Burch area
            • Radium
Bideaux et al. (1960) +1 other reference
    • Pima County
      • Comobabi Mountains
        • Cababi Mining District (Comobabi Mining District)
          • Ko Vaya
            • Mildren Mine group
Anthony et al. (1995)
    • Pinal County
      • Mammoth Mining District
        • Tiger
          • St. Anthony deposit
Galbraith (1959) +3 other references
Fahey et al. (1950) +2 other references
  • Nevada
    • Elko County
      • Spruce Mountain Mining District
Castor et al. (2004)
  • South Dakota
    • Lawrence County
Smith et al. (2000)
      • Spearfish
Roberts et al. (1965)
Zimbabwe
 
  • Midlands
    • Gokwe North District
Vetter et al. (1999) +1 other reference
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: March 19, 2024 03:02:45 Page updated: February 28, 2024 16:01:19
Go to top of page