SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
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 ArticlesThe ElementsBooks & Magazines
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 MuseumsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Motukoreaite

This page is currently not sponsored. Click here to sponsor this page.
05942460014946283283169.jpg
Motukoreaite

Stradner Kogel, Wilhelmsdorf, Bad Gleichenberg, Südoststeiermark District, Styria, Austria
06291790014946283283218.jpg
Motukoreaite

Stradner Kogel, Wilhelmsdorf, Bad Gleichenberg, Südoststeiermark District, Styria, Austria
09712030014976187245737.jpg
Motukoreaite

Browns Island, Auckland Region, New Zealand
05942460014946283283169.jpg
Motukoreaite

Stradner Kogel, Wilhelmsdorf, Bad Gleichenberg, Südoststeiermark District, Styria, Austria
06291790014946283283218.jpg
Motukoreaite

Stradner Kogel, Wilhelmsdorf, Bad Gleichenberg, Südoststeiermark District, Styria, Austria
06681580014961897677534.jpg
Motukoreaite

Browns Island, Auckland Region, New Zealand
05942460014946283283169.jpg
Motukoreaite

Stradner Kogel, Wilhelmsdorf, Bad Gleichenberg, Südoststeiermark District, Styria, Austria
06291790014946283283218.jpg
Motukoreaite

Stradner Kogel, Wilhelmsdorf, Bad Gleichenberg, Südoststeiermark District, Styria, Austria
Hide all sections | Show all sections

About MotukoreaiteHide

03492580014948008865902.jpg
Motukorea (Browns Island)

Browns Island, Auckland Region, New Zealand
Formula:
Mg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O
Colour:
colorless, white, yellow
Lustre:
Dull
Hardness:
1 - 1½
Specific Gravity:
1.48 - 1.53
Crystal System:
Trigonal
Name:
Named by K.A. Rodgers, J.E. Chisholm, R.J. Davis, and C.S. Nelson in 1977 for the Maori name of the type locality, Motukorea, meaning 'island of cormorants'.
Partial dehydration readily occurs.

As part of the recent re-evaluation of the nomenclature of the hydrotalcite supergroup (Mills et al., 2012), motukoreaite was identified as a questionable species which needs further investigation. The range of composition currently ascribed to motukoreaite may represent more than one species.


Classification of MotukoreaiteHide

IMA status:
Approved, Questionable
First published:
1977
Strunz 8th ed.:
6/D.14-20
Nickel-Strunz 10th (pending) ed.:
7.DD.35

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra
Dana 8th ed.:
17.1.7.1

17 : COMPOUND CARBONATES
1 : Miscellaneous
Hey's CIM Ref.:
12.2.4

12 : Carbonates with other anions
2 : Carbonates with sulphate

Physical Properties of MotukoreaiteHide

Lustre:
Dull
Transparency:
Translucent
Colour:
colorless, white, yellow
Hardness:
1 - 1½ on Mohs scale
Density:
1.48 - 1.53 g/cm3 (Measured)    1.478 g/cm3 (Calculated)

Optical Data of MotukoreaiteHide

Type:
Uniaxial
RI values:
nα = 1.510 nβ = 1.510
Max Birefringence:
δ = 1.510
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of MotukoreaiteHide

Formula:
Mg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O
IMA Formula:
Mg6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O
Elements listed:
Al, H, Mg, Na, O, S - search for minerals with similar chemistry

Crystallography of MotukoreaiteHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Cell Parameters:
a = 9.172(2) Å, c = 33.51(1) Å
Ratio:
a:c = 1 : 3.654
Unit Cell V:
2,441.37 ų (Calculated from Unit Cell)
Z:
3

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)
0014801MotukoreaiteRius J, Plana F (1986) Contribution to the superstructure resolution of the double layer mineral motukoreaite Neues Jahrbuch fur Mineralogie, Monatshefte 1986 263-2721986the Emile Baudot bank, western Mediterranean0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.32 Å(vvs)
5.58 Å(s)
4.59 Å(s)
3.72 Å(s)
2.578 Å(s)
2.386 Å(s)
2.158 Å(s)

Type Occurrence of MotukoreaiteHide

Synonyms of MotukoreaiteHide

Other Language Names for MotukoreaiteHide

Relationship of Motukoreaite to other SpeciesHide

Member of:
Wermlandite Group > Hydrotalcite Supergroup
Other Members of this group:
KarchevskyiteMg18Al9(OH)54Sr2(CO3)9(H2O)6 (H3O)5Trig.
NatroglaucoceriniteZn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OHex.
NikischeriteFe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig.
ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig.
WermlanditeMg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : P3c1

Common AssociatesHide

Associated Minerals Based on Photo Data:
12 photos of Motukoreaite associated with Phillipsite subgroup
7 photos of Motukoreaite associated with CalciteCaCO3
5 photos of Motukoreaite associated with Phillipsite-K(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
3 photos of Motukoreaite associated with Gismondine
2 photos of Motukoreaite associated with HannebachiteCaSO3 · H2O

Related Minerals - Nickel-Strunz GroupingHide

7.DD.05FelsőbányaiteAl4(SO4)(OH)10 · 4H2OMon. 2 : P21
7.DD.10LangiteCu4(SO4)(OH)6 · 2H2OMon. m
7.DD.10PosnjakiteCu4(SO4)(OH)6 · H2OMon. m : Pm
7.DD.10WroewolfeiteCu4(SO4)(OH)6 · 2H2OMon. m : Pm
7.DD.15SpangoliteCu6Al(SO4)(OH)12Cl · 3H2OTrig. 3m : P3 1c
7.DD.20KtenasiteZnCu4(SO4)2(OH)6 · 6H2OMon.
7.DD.25ChristeliteCu2Zn3(SO4)2(OH)6 · 4H2OTric.
7.DD.30CampigliaiteMn2+Cu4(SO4)2(OH)6 · 4H2OMon.
7.DD.30DevillineCaCu4(SO4)2(OH)6 · 3H2OMon. 2/m : P21/b
7.DD.30OrthoserpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OOrth. mm2 : Pca21
7.DD.30SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OMon. 2/m : B2/b
7.DD.30NiedermayriteCdCu4(SO4)2(OH)6 · 4H2OMon. 2/m : P21/m
7.DD.30EdwardsiteCu3Cd2(SO4)2(OH)6 · 4H2O Mon. 2/m : P21/b
7.DD.35Carrboydite(Ni1-xAlx)(SO4)x/2(OH)2 · nH2OHex.
7.DD.35Glaucocerinite(Zn1-xAlx)(OH)2(SO4)x/2 · nH2OHex.
7.DD.35Honessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35Hydrohonessite(Ni1-xFe3+x)(OH)2(SO4)x/2 · nH2OHex.
7.DD.35Mountkeithite[(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2OHex.
7.DD.35ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig.
7.DD.35WermlanditeMg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : P3c1
7.DD.35WoodwarditeCu1-xAlx(OH)2(SO4)x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincaluminiteZn6Al6(SO4)2(OH)16 · 5H2O
7.DD.35Hydrowoodwardite(Cu1-xAlx)(OH)2[SO4]x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincowoodwarditeZn1-xAlx(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35NatroglaucoceriniteZn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OHex.
7.DD.35NikischeriteFe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig.
7.DD.40Lawsonbauerite(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.40Torreyite(Mg,Mn2+)7◻2Mn2+2Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.45MooreiteMg9◻2Mn2Zn4(SO4)2(OH)26 · 8H2OMon. 2/m : P2/b
7.DD.50NamuwiteZn4(SO4)(OH)6 · 4H2OTrig. 3 : P3
7.DD.55BechereriteZn7Cu(OH)13[(SiO(OH)3(SO4)]Trig. 3 : P3
7.DD.60Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2OMon. 2/m
7.DD.65VonbezingiteCa6Cu3(SO4)3(OH)12 · 2H2OMon. 2/m : P21/b
7.DD.70RedgilliteCu6(SO4)(OH)10 · H2OMon. 2/m : P21/b
7.DD.75ChalcoalumiteCuAl4(SO4)(OH)12 · 3H2OMon. 2 : P21
7.DD.75Nickelalumite(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2OMon.
7.DD.75KyrgyzstaniteZnAl4(SO4)(OH)12 · 3H2OMon.
7.DD.80GuarinoiteZn6(SO4)(OH)10 · 5H2OHex.
7.DD.80Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2OTrig.
7.DD.80ThérèsemagnaniteNaCo4(SO4)(OH)6Cl · 6H2OTrig. 3 : P3
7.DD.80UM1992-30-SO:CCuHZn(Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2OTrig. 3 : P3
7.DD.85MontetrisaiteCu6(SO4)(OH)10 · 2H2OOrth. mm2 : Cmc21

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

12.2.1BurkeiteNa6(CO3)(SO4)2Orth.
12.2.2HanksiteNa22K(SO4)9(CO3)2ClHex. 6/m : P63/m
12.2.3TychiteNa6Mg2(CO3)4(SO4)Iso. m3 (2/m 3) : Fd3
12.2.5FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)Iso. m3 (2/m 3) : Fd3
12.2.6NakauriiteCu8(SO4)4(CO3)(OH)6 · 48H2OOrth.
12.2.7CarbonatecyanotrichiteCu4Al2(CO3,SO4)(OH)12 · 2H2OOrth.
12.2.8RapidcreekiteCa2(SO4)(CO3) · 4H2OOrth.
12.2.9TatarskiteCa6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2OOrth.
12.2.10Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2OTrig.
12.2.11LeadhillitePb4(CO3)2(SO4)(OH)2Mon. 2/m : P21/b
12.2.12MacphersonitePb4(CO3)2(SO4)(OH)2Orth. mmm (2/m 2/m 2/m)
12.2.13SusannitePb4(CO3)2(SO4)(OH)2Trig. 3 : P3
12.2.14WherryitePb7Cu2(SO4)4(SiO4)2(OH)2Mon. 2/m : B2/m
12.2.15CaledonitePb5Cu2(SO4)3(CO3)(OH)6Orth. mm2 : Pmn21
12.2.16NasledovitePbMn3Al4(CO3)4(SO4)O5 · 5H2O
12.2.17JouravskiteCa3Mn4+(SO4)(CO3)(OH)6 · 12H2OHex. 6 : P63
12.2.18SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2OTric. 1 : P1
12.2.19ManganotychiteNa6Mn2(CO3)4(SO4)Iso. m3 (2/m 3) : Fd3
12.2.20HauckiteFe3+3(Mg,Mn2+)24Zn18(SO4)4(CO3)2(OH)81Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
12.2.21ParaotwayiteNi(OH)2-x(SO4,CO3)0.5xMon.
12.2.22Carrboydite(Ni1-xAlx)(SO4)x/2(OH)2 · nH2OHex.
12.2.23Mountkeithite[(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2OHex.
12.2.24CamérolaiteCu6Al3(OH)18(H2O)2[Sb(OH)6](SO4)Tric. 1 : P1

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 MotukoreaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Rodgers, K.A., Chisholm, J.E., Davis, R.J., Nelson, C.S. (1977) Motukoreaite, a new hydrated carbonate, sulphate, and hydroxide of Mg and Al from Auckland, New Zealand. Mineralogical Magazine: 41: 389–390.
Fleischer, M., Cabri, L.J. (1978) New mineral names. American Mineralogist: 63: 598-600.
Rius, J., Plana, F. (1986) Contribution to the superstructure resolution of the double layer mineral motukoreaite. Neues Jahrbuch für Mineralogie, Monatshefte: 263–272.
Hawthorne, F.C., Jambor, J.L., Bladh, K.W., Burke, E.A.J., Grice, J.D., Phillips, D., Roberts, A.C., Schedler, R.A., Shigley, J.E. (1987) New mineral names. American Mineralogist: 72: 1023-1028.
Zamarreño, I., Plana, F., Vazquez, A., Clague, D.A. (1989) Motukoreaite: a common alteration product in submarine basalts. American Mineralogist: 74: 1054–1058.
Bryner, V., Rodgers, K.A., Courtney, S.F., Postl, W. (1991) Motukoreaite from Brown’s Island, New Zealand, and Stradner Kogel, Austria: a scanning electron microscope study. Neues Jahrbuch für Mineralogie, Abh.: 163: 291–304.
Mills, S.J., Christy, A.G., Genin, J.-M.R., Kameda, T., Colombo, F. (2012) Nomenclature of the hydrotalcite supergroup: natural layered double hydroxides. Mineralogical Magazine: 76: 1289-1336.
Wachowiak, J., Pieczka, A. (2016) Motukoreaite from the Kłodawa Salt Dome, Central Poland. Mineralogical Magazine: 80: 277-289.

Internet Links for MotukoreaiteHide

Localities for MotukoreaiteHide

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.
Australia
 
  • Western Australia
    • Coolgardie Shire
      • Widgiemooltha
Clissold, M. E. (2007) Aspects of the Supergene Geochemistry of Copper, Nickel and Bismuth. PhD Thesis University of Sydney, Australia 162pp.
Austria
 
  • Styria
    • Südoststeiermark District
      • Bad Gleichenberg
        • Wilhelmsdorf
Alker, A., Golob, P., Postl, W. & Waltinger, H. (1981): Hydrotalkit, Nordstrandit und Motukoreait vom Stradner Kogel, südlich Gleichenberg, Steiermark. Mitt.-Bl. Abt. Mineral. Landesmuseum Joanneum 49, 1-13.; Bryner, V., Rodgers, K.A., Courtney, S.F. and W. Postl (1991): Motukoreaite from Brown´s Island, New Zealand, and Stradner Kogel, Austria: a scanning electron microscopic study. N. Jahrb. Mineral. Abh., 163, 291-304.; R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993); Postl, W. et al. (2008)
Italy
 
  • Veneto
    • Vicenza Province
      • Crespadoro
        • Chiampo Valley
Daleffe, A., & Boscardin, M. (2008): Motukoreaite. Primo ritrovamento in Italia. Rivista Mineralogica Italiana, 1/2008, 22-23
New Zealand (TL)
 
  • Auckland Region
Rodgers, K.A., Chisholm, J.E., Davis, R.J., Nelson, C.S. (1977) Motukoreaite, a new hydrated carbonate, sulphate, and hydroxide of Mg and Al from Auckland, New Zealand. Mineralogical Magazine, Vol 41: 319, 389-390.
Poland
 
  • Greater Poland Voivodeship
    • Koło County
      • Gmina Kłodawa
Wachowiak, J., Pieczka, A. (2016): Motukoreaite from the Kłodawa Salt Dome, Central Poland. Mineralogical Magazine: 80: 277-289
Quick NavTopAbout MotukoreaiteClassification Physical Properties Optical Data Chemical Properties Crystallography Crystal StructureX-Ray Powder DiffractionType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesNickel-StrunzHey's CIMOther InformationReferences Internet Links Localities Locality List
 
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. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2021, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us - Report a bug/vulnerability Current server date and time: March 7, 2021 09:39:26 Page generated: February 2, 2021 17:28:18
Go to top of page