LIVE REPORT! Tucson 2019 - last updated 1 hour ago. Click here to watch.
Log InRegister
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 Articles
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 CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Mahnertite

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

Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France
Mahnertite

Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France
Mahnertite

Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France
Mahnertite

Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France
Mahnertite

Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France
Mahnertite

Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France
Mahnertite

Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France
Mahnertite

Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France
Hide all sections | Show all sections

About MahnertiteHide

Formula:
NaCu3(AsO4)2Cl · 5H2O
Lustre:
Vitreous
Hardness:
2 - 3
Crystal System:
Tetragonal
Name:
Named after Volker Mahnert (b. 1943), zoologist, Director of the Muséum d’Histoire Naturelle, Geneva, Switzerland.
Structurally related to Zdenekite and other members of the Lavendulan Group.



Classification of MahnertiteHide

IMA status:
Approved
Approval Year:
1994
Strunz 8th ed.:
7/D.25-27
Nickel-Strunz 10th (pending) ed.:
8.DH.45

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1

Physical Properties of MahnertiteHide

Lustre:
Vitreous
Hardness:
2 - 3 on Mohs scale

Optical Data of MahnertiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.686 nε = 1.635
Max Birefringence:
δ = 0.051
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of MahnertiteHide

Formula:
NaCu3(AsO4)2Cl · 5H2O
IMA Formula:
(Na,Ca,K)Cu3(AsO4)2Cl · 5H2O
Elements listed:
As, Ca, Cl, Cu, H, K, Na, O - search for minerals with similar chemistry

Crystallography of MahnertiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I4/mmm
Cell Parameters:
a = 10.037 Å, c = 23.739 Å
Ratio:
a:c = 1 : 2.365
Unit Cell V:
2391.5 ų
Z:
8
Morphology:
Thin pseudotetragonal plates.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.90 (100)
9.29 (60)
7.131 (50)
5.043 (60)
4.641 (40)
3.098 (80)
3.061 (70)

Type Occurrence of MahnertiteHide

Synonyms of MahnertiteHide

Other Language Names for MahnertiteHide

German:Mahnertit
Spanish:Mahnertita

Relationship of Mahnertite to other SpeciesHide

Structurally related to group(s):
Lavendulan GroupMahnertite, richelsdorfite, andyrobertsite and calcioandyrobertsite are structurally ...

Common AssociatesHide

Associated Minerals Based on Photo Data:
Zdenĕkite2 photos of Mahnertite associated with Zdenĕkite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.DH.05MinyuliteKAl2(PO4)2(OH,F) · 4H2OOrth. mm2 : Pba2
8.DH.10LeucophosphiteKFe3+2(PO4)2(OH) · 2H2OMon. 2/m : P21/b
8.DH.10Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2OMon.
8.DH.10TinsleyiteKAl2(PO4)2(OH) · 2H2OMon.
8.DH.15Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15KeckiteCaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2OMon. 2/m : P2/b
8.DH.15Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m
8.DH.15Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Jahnsite-(MnMnMn){Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Kaluginite(Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2OOrth.
8.DH.15Jahnsite-(CaFeFe){Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Jahnsite-(NaFeMg)NaFe3+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(NaMnMg){(Na,Ca)}{(Mn2+,Fe3+)}{(Mg,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMgMg){Ca}{Mg}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O
8.DH.20Manganosegelerite(Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20OveriteCaMgAl(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20SegeleriteCa2 Mg2 Fe3+2(PO4)4(OH)2 · 8H2OOrth. mmm (2/m 2/m 2/m) : Pcca
8.DH.20WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2OOrth.
8.DH.20JuonniiteCaMgSc(PO4)2(OH) · 4H2OOrth.
8.DH.25CalcioferriteCa2Fe3+2(PO4)3(OH) · 7H2OMon. 2/m : B2/b
8.DH.25KingsmountiteCa4(Fe2+,Mn2+)Al4(PO4)6(OH)4 · 12H2OMon. 2 : B2
8.DH.25MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2OMon. 2 : B2
8.DH.25ZodaciteCa4Mn2+Fe3+4(PO4)6(OH)4 · 12H2OMon.
8.DH.30ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2OMon. 2/m : B2/b
8.DH.30KolfaniteCa2Fe3+3O2(AsO4)3 · 2H2OMon.
8.DH.30MitridatiteCa2Fe3+3(PO4)3O2 · 3H2OMon. 2/m : B2/b
8.DH.30PararobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. 2/m : P21/b
8.DH.30RobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. m : Bb
8.DH.30Sailaufite(Ca,Na,☐)2Mn3+3(AsO4)2(CO3)O2 · 3H2OMon.
8.DH.35MantienneiteKMg2Al2Ti(PO4)4(OH)3 · 15H2OOrth.
8.DH.35PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.35Benyacarite(H2O,K)2(Mn2+,Fe2+)2(Fe3+,Ti)2Ti(PO4)4(O,F)2 · 14H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.40XanthoxeniteCa4Fe3+2(PO4)4(OH)2 · 3H2OTric. 1 : P1
8.DH.50AndyrobertsiteKCdCu5(AsO4)4(H2AsO4) · 2H2OMon.
8.DH.50CalcioandyrobertsiteKCaCu5(AsO4)4(H2AsO4) · 2H2OMon. 2/m : P21/m
8.DH.55EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2OMon. 2/m
8.DH.60BouazzeriteBi6(Mg,Co)11Fe3+14(AsO4)18(OH)4O12 · 86H2OMon. 2/m

Other InformationHide

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 MahnertiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Sarp, H. (1996), "Mahnertite, (Na,Ca)Cu(AsO4)4Cl.5H2O, a new mineral from the Cap Garonne Mine, Var France", Archs. Sci. Genève 49(2):119-124 (in French, with English abstract).
Wendel,W. & Markl,G. (1999): Lavrion: Mineralogische Klassiker und Raritäten für Sammler. Lapis, 24(7), 34.
Rieck,B. (1999): Seltene Arsenate aus der Kamariza und weitere Neufunde aus Lavrion. Lapis, 24(7), 68
Mineralogical Record: 28: 486.
Pushcharovsky, D. Yu., Zubkova, N.V., Teat, S.J., MacLean, E.J., and Sarp, H. (2004) Crystal structure of mahnertite. European Journal of Mineralogy: 16: 687-692.
Giester, Gerald; Uwe Kolitsch; Peter Leverett; Peter Turner; Peter A. Williams (2007): The crystal structures of lavendulan, sampleite, and a new polymorph of sampleite. European Journal of Mineralogy 19,75-93.

Internet Links for MahnertiteHide

Localities for MahnertiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Chile
 
  • Tarapacá
    • Iquique Province
      • Salar Grande
SEM-EDS by Joy Desor
France (TL)
 
  • Provence-Alpes-Côte d'Azur
    • Var
      • Le Pradet
H. Sarp: Archs. Sci. Genève 49(2):119-124 (1996)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
Lapis, 24(7), 34 (1999); Lapis, 24(7), 68 (1999)
Lapis No.7/8 1999 p.70-74
Italy
 
  • Sardinia
    • South Sardinia Province
      • Gonnosfanadiga
Desor, J. (2017) SEM-EDS analysis on crystals
USA
 
  • Utah
    • San Juan Co.
      • White Canyon District
        • Red Canyon
Kampf, A.R., Plášil, J., Kasatkin, A.V., Marty, J., and Čejka, J. (2018) Markeyite, a new calcium uranyl carbonate mineral from the Markey mine, San Juan County, Utah, USA. Mineralogical Magazine, 82, 1089-1100.
Quick NavTopAbout MahnertiteClassification Physical Properties Optical Data Chemical Properties Crystallography X-Ray Powder DiffractionType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesNickel-StrunzOther InformationReferences Internet Links Localities Locality List
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: February 15, 2019 18:55:05 Page generated: December 30, 2018 09:22:35
Go to top of page