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Messelite

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Formula:
Ca2(Fe2+,Mn2+)(PO4)2 · 2H2O
System:
Triclinic
Colour:
White, pale gray white, ...
Hardness:
Name:
Named in 1889 by Wilhelm Muthmann after the type locality at Messel, Hessen, Germany.
Isostructural with:
This page provides mineralogical data about Messelite.

Classification of Messelite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
8.CG.05

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
G : With large and medium-sized cations, RO4:H2O = 1:1
40.2.2.2

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2 : AB2(XO4)2·xH2O
19.12.40

19 : Phosphates
12 : Phosphates of Mn
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http://www.mindat.org/min-2658.html
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Type Occurrence of Messelite

General Appearance of Type Material:
Radiating blades in indurated clay slate
Year of Discovery:
1889
Geological Setting of Type Material:
Bituminous clay.
Associated Minerals at Type Locality:

Occurrences of Messelite

Geological Setting:
Granite pegmatite

Physical Properties of Messelite

Sub-Vitreous, Resinous, Waxy, Greasy
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
White, pale gray white, creamy white
Streak:
White
Hardness (Mohs):
Tenacity:
Brittle
Cleavage:
Perfect
{001}
Fracture:
Sub-Conchoidal
Comment:
Fracture or cleavage surfaces may be curved
Density:
3.15 - 3.16 g/cm3 (Measured)    

Crystallography of Messelite

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Space Group Setting:
P1
Cell Parameters:
a = 5.8Å, b = 6.6Å, c = 5.5Å
α = 102°, β = 109°, γ = 90°
Ratio:
a:b:c = 0.879 : 1 : 0.833
Z:
1
Morphology:
Crystals aggregated into crude stellate bunches.
X-Ray Powder Diffraction Data:
d-spacingIntensity
9.00 (50)
6.34 (100)
5.07 (50)
3.17 (100)
3.02 (80)
2.79 (60)
2.68 (80)
2.57 (70)

Optical Data of Messelite

Type:
Biaxial (+)
RI values:
nα = 1.644 - 1.654 nβ = 1.649 - 1.659 nγ = 1.660 - 1.680
2V:
Measured: 20° to 35°, Calculated: 62°
Birefringence:
0.021
Max Birefringence:
δ = 0.016 - 0.026
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively strong
Pleochroism:
Non-pleochroic

Chemical Properties of Messelite

Formula:
Ca2(Fe2+,Mn2+)(PO4)2 · 2H2O
Essential elements:
All elements listed in formula:

Relationship of Messelite to other Species

Other Members of Group:
CassidyiteCa2(Ni2+,Mg)(PO4)2 · 2H2O
CollinsiteCa2(Mg,Fe2+)(PO4)2 · 2H2O
FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
GaititeCa2Zn(AsO4)2 · 2H2O
NickeltalmessiteCa2Ni(AsO4)2 · 2H2O
ParabrandtiteCa2Mn2+(AsO4)2 · 2H2O
TalmessiteCa2Mg(AsO4)2 · 2H2O
Unnamed (Fe2+-analogue of Parabrandtite)Ca2Fe2+(AsO4)2 · 2H2O
β-RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2O
8.CG.05CassidyiteCa2(Ni2+,Mg)(PO4)2 · 2H2O
8.CG.05CollinsiteCa2(Mg,Fe2+)(PO4)2 · 2H2O
8.CG.05FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
8.CG.05GaititeCa2Zn(AsO4)2 · 2H2O
8.CG.05ParabrandtiteCa2Mn2+(AsO4)2 · 2H2O
8.CG.05TalmessiteCa2Mg(AsO4)2 · 2H2O
8.CG.05HilliteCa2(Zn,Mg)(PO4)2 · 2 H2O
8.CG.10BrandtiteCa2(Mn2+,Mg)(AsO4)2 · 2H2O
8.CG.10RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2O
8.CG.10WendwilsoniteCa2Mg(AsO4)2 · 2H2O
8.CG.10ZincroseliteCa2Zn(AsO4)2 · 2H2O
8.CG.10RruffiteCa2Cu(AsO4)2 · 2H2O
8.CG.15FerrilotharmeyeriteCa(Fe3+,Zn)2(AsO4)2 · 2(OH,H2O)
8.CG.15LotharmeyeriteCa(Zn,Mn3+)2(AsO4)2 · 2(H2O,OH)
8.CG.15MawbyitePb(Fe3+,Zn)2(AsO4)2 · 2(OH,H2O)
8.CG.15MounanaitePbFe23+(VO4)2(OH,F)2
8.CG.15ThometzekitePb(Cu,Zn)2(AsO4,SO4)2 · 2(H2O,OH)
8.CG.15TsumcoritePb(Zn,Fe3+)2(AsO4)2 · 2(H2O,OH)
8.CG.15CobaltlotharmeyeriteCa(Co,Fe3+,Ni)2(AsO4)2 · 2(H2O,OH)
8.CG.15CabalzariteCa(Mg,Al,Fe3+)2(AsO4)2(OH,H2O)2
8.CG.15Krettnichite(Pb,Sr)(Mn3+,Co)2(VO4)2 · 2(OH,H2O)
8.CG.15CobalttsumcoritePb(Co,Fe3+,Ni)2(AsO4)2 · 2(H2O,OH)
8.CG.15NickellotharmeyeriteCa(Ni,Fe3+,Co)2(AsO4)2 · 2(H2O,OH)
8.CG.15ManganlotharmeyeriteCa(Mn3+,Zn)2(AsO4)2(OH,H2O)2
8.CG.15Schneebergite(Bi3+,Ca)(Co,Ni,Fe3+)2(AsO4)2(OH,H2O)2
8.CG.15Nickelschneebergite(Bi3+,Ca)(Ni,Co,Fe3+)2(AsO4)2 · 2(OH,H2O)
8.CG.20GartrellitePb(Cu,Fe3+,Zn)2(AsO4,SO4)2 · 2(H2O,OH)
8.CG.20HelmutwinkleritePb(Zn,Cu)2(AsO4)2 · 2H2O
8.CG.20ZincgartrellitePb(Zn,Fe3+,Cu)2(AsO4)2 · 2(H2O,OH)
8.CG.20RappolditePb(Co,Ni,Zn)2(AsO4)2 · 2H2O
8.CG.20PhosphogartrellitePb(Cu,Fe3+)2(PO4,AsO4)2 · 2(H2O,OH)
8.CG.20LukrahniteCa(Cu,Zn)(Fe3+,Zn)(AsO4)2 · 2(H2O,OH)
8.CG.25PottsiteHPbBi(VO4)2 · 2H2O
8.CG.35NickeltalmessiteCa2Ni(AsO4)2 · 2H2O
19.12.1MetaswitzeriteMn3(PO4)2 · 4H2O
19.12.2BermaniteMn2+Mn23+(PO4)2(OH)2 · 4H2O
19.12.3NatrophiliteNaMn2+PO4
19.12.4SidorenkiteNa3Mn2+(CO3)(PO4)
19.12.5Niahite(NH4)(Mn2+,Mg)(PO4) · H2O
19.12.6RobertsiteCa3Mn43+(PO4)3O2 · 3H2O
19.12.7PararobertsiteCa2Mn33+(PO4)3O2 · 3H2O
19.12.8SinkankasiteMn2+Al(PO3OH)2(OH) · 6H2O
19.12.9MangangordoniteMn2+Al2(PO4)2(OH)2 · 8H2O
19.12.10Heterosite(Fe3+,Mn3+)PO4
19.12.11Purpurite(Mn3+,Fe3+)PO4
19.12.12Wolfeite(Fe2+,Mn2+)2(PO4)(OH)
19.12.13Triploidite(Mn2+,Fe2+)2(PO4)(OH)
19.12.14LipscombiteFe2+Fe23+(PO4)2(OH)2
19.12.15FrondeliteMn2+Fe43+(PO4)3(OH)5
19.12.16RockbridgeiteFe2+Fe43+(PO4)3(OH)5
19.12.17Kryzhanovskite(Fe3+,Mn2+)3(PO4)2(OH,H2O)3
19.12.18LandesiteMn2+3-xFex3+(PO4)2(OH)x · (3-x)H2O
19.12.19Phosphoferrite(Fe2+,Mn2+)3(PO4)2 · 3H2O
19.12.20Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2O
19.12.21EarlshannoniteMn2+Fe23+(PO4)2(OH)2 · 4H2O
19.12.22Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
19.12.23Switzerite(Mn,Fe)3(PO4)2 · 7H2O
19.12.24LaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
19.12.25PseudolaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
19.12.26StrunziteMn2+Fe23+(PO4)2(OH)2 · 6H2O
19.12.27StewartiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
19.12.28Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
19.12.29Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3
19.12.30Fillowite{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36
19.12.31JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36
19.12.32WicksiteNaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2O
19.12.33Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn132+}{Al}(PO4)12(OH)2
19.12.34Sarcopside(Fe2+,Mn2+,Mg)3(PO4)2
19.12.35Ludlamite(Fe,Mn,Mg)3(PO4)2 · 4H2O
19.12.36Graftonite(Fe2+,Mn2+,Ca)3(PO4)2
19.12.37WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2O
19.12.38FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
19.12.39Beusite(Mn2+,Fe2+,Ca,Mg)3(PO4)2
19.12.41Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe22+}{Fe23+}(PO4)4(OH)2 · 8H2O
19.12.42Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn22+}{Fe23+}(PO4)4(OH)2 · 8H2O
19.12.43Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe23+}(PO4)4(OH)2 · 8H2O
19.12.44KeckiteCaMn2+Fe23+Fe23+(PO4)4(OH)3(H2O)7
19.12.45StanfielditeCa7Ca2Mg9(PO4)12
19.12.46Laubmannite(Fe2+,Mn2+,Ca)3Fe63+(PO4)4(OH)12
19.12.47ZodaciteCa4Mn2+Fe43+(PO4)6(OH)4 · 12H2O
19.12.48HagendorfiteNaCaMn2+Fe22+(PO4)3
19.12.49Maghagendorfite(□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3
19.12.50VaruliteNaCaMn2+Mn22+(PO4)3
19.12.51GriphiteNa4Li2Ca6(Mn2+,Fe2+,Mg)19Al8(PO4)24(F,OH)8
19.12.52Attakolite(Ca,Sr)Mn(Al,Fe)4(HPO4,PO4)3(SiO4,PO4)(OH)4
19.12.53Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
19.12.54Lun'okite(Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2O
19.12.55Eosphorite(Mn2+,Fe2+)Al(PO4)(OH)2 · H2O
19.12.56Ernstite(Mn2+,Fe3+)Al(PO4)(OH,O)2 · H2O
19.12.57Childrenite(Fe2+,Mn2+)Al(PO4)(OH)2 · H2O
19.12.58BobfergusoniteNa2Mn5FeAl(PO4)6
19.12.59QingheiiteNaMn3+Mg(Al,Fe3+)(PO4)3
19.12.60Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
19.12.61Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
19.12.62Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
19.12.63Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O
19.12.64ZanazziiteCa2Mg5Be4(PO4)6(OH)4 · 6H2O
19.12.65Samuelsonite(Ca,Ba)Ca8Fe22+Mn22+Al2(PO4)10(OH)2

Other Names for Messelite

Name in Other Languages:
German:Messelit
Spanish:Messelita

Other Information

Not known to be fluorescent in UV
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Messelite

Reference List:
Muthmann (1890) Zeitschrift für Kristallographie: 17: 93.

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. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 732.

American Mineralogist (1955): 40: 828-833.

American Mineralogist (1959): 44: 465.

Fleck, M. & Kolitsch, U. (2003): Natural and synthetic compounds with kröhnkite-type chains. An update. Zeitschrift für Kristallographie 218, 553-567. [includes crystal structure of natural messelite]

Internet Links for Messelite

Localities for Messelite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Austria
 
  • Carinthia
    • Koralpe
      • Moschkogel - Weinebene area
        • Brandrücken
G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
Brazil
 
  • Minas Gerais
    • Doce valley
      • Conselheiro Pena
Canadian Mlneralogist Vol. 20, pp. 87-89 (1982)
      • Galiléia
        • Laranjeiras
[MinRec 12:69]
        • Sapucaia do Norte
Baijot, M., Hatert, F. & Philippo, S. (2012): Mineralogy and geochemistry of phosphates and silicates in the Sapucaia pegmatite, Minas Gerais, Brazil: Genetic implications. Canadian Mineralogist. 50, 1531-1554
Canada
 
  • Yukon Territory
    • Dawson Mining District
MinRec 23:4-47
[Mineralogical Record Vol 23 No.4 pp27]
        • Kulan Camp (Area A; Area 1)
Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47
        • Stoneman Camp (Area B; Area 2)
Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Kutná Hora (Kuttenberg)
Duda, Rejl, Slivka: "Mineralien", 1991
France
 
  • Languedoc-Roussillon
    • Aude
      • Carcassonne
        • Mas-Cabardès
          • Salsigne
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
    • Pyrénées-Orientales
Berbain,C., Riley, T., Favreau, G., (2012): Phosphates des pegmatites du massif des Albères (Pyrénées-Orientales). Le Cahier des Micromonteurs. 117, 121-172
        • Argelès-sur-Mer
BERBAIN. C, RILEY. T, FAVREAU. G, (2012). Phosphates des pegmatites du massif des Albères. Ed Association française de Microminéralogie,
        • Collioure (Cotlliure)
BERBAIN. C, RILEY. T, FAVREAU. G, (2012) Phosphates des pegmatites du massif des Albères. Ed Association Française de Microminéralogie
Germany
 
  • Bavaria
    • Upper Palatinate
      • Waidhaus
        • Hagendorf
http://www.berthold-weber.de/h_miner.htm
  • Hesse
    • Darmstadt
      • Messel
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. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 732; American Mineralogist (1955): 40: 829; Aufschluss: 1980(6), 192-204.
Aufschluss 1980(6), 192-204
Japan
 
  • Honshu Island
    • Kanto Region
      • Ibaraki Prefecture
        • Kasumigaura City
          • Chiyoda-machi
Matsubara, S. & Kato, A. (1980) Koubutsugaku Zasshi, 14, 269-286.
    • Kinki region
      • Mie Prefecture
        • Kuwana City
Specimen on sale at Tokyo International Mineral Association show, 2011.
Morocco
 
  • Souss-Massa-Draâ Region
    • Ouarzazate Province
      • Tazenakht
FRANSOLET, A.-M. (1974) Les phosphates lithiques des pegmatites de la plaine des Zenaga (Anti-Atlas, Maroc). Notes Serv. géol. Maroc, 35, 137-143
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
Ruslan P. Liferovich, Yakov A. Pakhomovsky, Alla N. Bogdanova, Elena G. Balaganskaya, Kauko V. O. Laajoki, Seppo Gehor and Nikita V. Chukanov (2001) Collinsite in hydrothermal assemblages related to carbonatites in the Kovdor Complex, northwestern Russia. The Canadian Mineralogist 39:1081-1094
Spain
 
  • Catalonia
    • Lleida (Lérida)
      • Cerdanya
Mineralogistes de Catalunya (1997) VII(1):22-33
Rosell, J. (2014): "Barita en els nòduls d'anapaïta de la Cerdanya catalana. INFOMINER, 60. Edita Grup Mineralògic Català, Barcelona."
Alfredo Petrov collection; Dr. Anthony Kampf analysis; specimen originally obtained from INTAN, Barcelona.
Sweden
 
  • Södermanland
    • Norrö
No reference listed
Switzerland
 
  • Ticino (Tessin)
    • Lago Maggiore
      • Brissago
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 271.
Ukraine
 
  • Crimea Oblast'
    • Crimea peninsula
      • Kerch peninsula (Kertch peninsula)
        • Novoselovka Village area
Shnykov E.F. at al.(1971) Mud Volcanism and Ore Formation (Gryazevoi Vulkanizm i Rudoobrazovanie). Kiev:Naukova Dumka. 332 p. (Rus.)
USA
 
  • Connecticut
    • Middlesex Co.
      • East Hampton (Chatham)
        • Cobalt
Schooner (1961)
  • Maine
    • Oxford Co.
      • Newry
King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2.
      • Paris
SEM-EDS
      • Rumford
Tim Blake, Lookout Mine Owner
  • New Hampshire
    • Cheshire Co.
      • Alstead
      • Walpole
P. Cristofono, T. Mortimer, J.W. Nizamoff, A. Wilken, and R. Wilken (2011) The 38th Rochester Mineralogical Symposium, April 14-17, 2011, lecture abstracts, page 17-18.
    • Grafton Co.
      • Groton
Mineralogical Record (1970) 1:47,53; Mineralogical Record (1973) 4:103-130; USGS Prof Paper 353; NIZAMOFF, James W., SIMMONS, William B., and FALSTER, Alexander U. (2004) PHOSPHATE MINERALOGY AND PARAGENESIS OF THE PALERMO #2 PEGMATITE, NORTH GROTON, NEW HAMPSHIRE Geological Society of America Abstracts with Programs, Vol. 36, No. 5, p. 115
Journal of Pegmatology vol. 1, no. 1 ; Geological Society of America Abstracts with Programs, Vol. 36, No. 5, p. 115
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
Rocks and Minerals, (1985) 60:76-82
    • Gaston Co.
      • Bessemer City
No reference listed
  • South Dakota
    • Custer Co.
      • Custer District
        • Fourmile
Rocks & Minerals: 60: 117.
        • Pringle
          • Cicero Peak
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
    • Pennington Co.
      • Keystone District
        • Glendale
Rocks & Minerals: 60: 116.
R&M 75:3 pp 156-169
        • Keystone
R&M 75:3 pp 156-169
R&M 75:3 pp 156-169
  • Utah
    • Utah Co.
      • Oquirrh Mts
        • Fairfield
Liferovich, R.P., Subbotin, V.V., Pakhomovsky, Y.A., Lyalina, M.F. (1998) A new type of scandium mineralization in phoscorites and carbonatites of the Kovdor Massif, Russia. The Canadian Mineralogist, 36, 971-980.
Mineral and/or Locality  
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