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:
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


This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About LeisingiteHide

CuMg2Te6+O6 · 6H2O
Pale yellow to pale orange-yellow
3 - 4
Specific Gravity:
3.41 (Calculated)
Crystal System:
Named by A.C. Roberts et al. in 1996 in honor of Joseph F. Leising (1949-), geologist and mineral collector of Reno, Nevada, USA, who helped collect the first known specimens.
Chemically very similar to raisaite.

Classification of LeisingiteHide

First Published:

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra

Physical Properties of LeisingiteHide

Transparent, Translucent
somewhat satiny to frosted
Pale yellow to pale orange-yellow
Pale yellow
3 - 4 on Mohs scale
somewhat flexible
3.41 g/cm3 (Calculated)

Optical Data of LeisingiteHide

Uniaxial (-)
RI values:
nω = 1.803 nε = 1.581
Max Birefringence:
δ = 0.222
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of LeisingiteHide

CuMg2Te6+O6 · 6H2O
Common Impurities:

Crystallography of LeisingiteHide

Crystal System:
Class (H-M):
3 - Pyramidal
Space Group:
Cell Parameters:
a = 5.305(1) Å, c = 9.693(6) Å
a:c = 1 : 1.827
Unit Cell V:
236.2 ų
{001} is the major form and {100} and {110} are minute forms

X-Ray Powder DiffractionHide

Powder Diffraction Data:
9.70 (100)
4.834 (80)
4.604 (60)
2.655 (60)
2.556 (70)
2.326 (70)

Type Occurrence of LeisingiteHide

General Appearance of Type Material:
isolated hexagonal-shaped very thin plates or foliated masses; rarely as clusters of crystals; individual crystals, subhedral to euhedral, are less than 0.1 mm on average
Place of Conservation of Type Material:
Canadian Geological Survey, Ottawa, Canada, 67882.
Geological Setting of Type Material:
small vugs of crumbly to drusy white to colourless quartz, within the dump material
Associated Minerals at Type Locality:

Synonyms of LeisingiteHide

Other Language Names for LeisingiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Quartz1 photo of Leisingite associated with Quartz on mindat.org.
Utahite1 photo of Leisingite associated with Utahite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.FL.TrébeurdeniteFe2+2Fe3+4O2(OH)10CO3·3H2OTrig. 3m (3 2/m) : R3m
4.FL.05WoodalliteMg6Cr2(OH)16Cl2 · 4H2OTrig.
4.FL.05IowaiteMg6Fe3+2(OH)16Cl2 · 4H2OTrig. 3m (3 2/m) : R3m
4.FL.05JamboriteNi2+1-xCo3+x(OH)2-x(SO4)x · nH2OTrig. 3m (3 2/m) : R3m
4.FL.05MeixneriteMg6Al2(OH)16(OH)2 · 4H2OTrig. 3m (3 2/m) : R3m
4.FL.05MuskoxiteMg7Fe4O13 · 10H2OTrig. 3m (3 2/m)
4.FL.05FougèriteFe2+4Fe3+2(OH)12[CO3]·3H2OTrig. 3m (3 2/m) : R3m
4.FL.10HydrocalumiteCa4Al2(OH)12(Cl,CO3,OH)2 · 4H2OMon. 2 : P21
4.FL.15KuzeliteCa4Al2(OH)12[SO4] · 6H2OTrig.
4.FL.20Aurorite(Mn2+,Ag,Ca)Mn4+3O7 · 3H2OTrig. 3 : R3
4.FL.20Chalcophanite(Zn,Fe,Mn)Mn3O7 · 3H2OTrig. 3 : R3
4.FL.20ErnienickeliteNiMn3O7 · 3H2OTrig. 3 : R3
4.FL.20Jianshuiite(Mg,Mn,Ca)Mn3O7 · 3H2OTrig. 3 : R3
4.FL.25WoodruffiteZn2+x/2(Mn4+1-xMn3+x)O2·yH2OMon. 2/m : B2/m
4.FL.30Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2OHex.
4.FL.35BuseriteNa4Mn14O27 · 21H2O
4.FL.40Ranciéite(Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2OTrig. 3 : P3
4.FL.40Takanelite(Mn,Ca)Mn4O9 · H2OHex.
4.FL.45Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2OMon. 2/m : B2/m
4.FL.55CianciulliiteMn(Mg,Mn)2Zn2(OH)10 · 2-4H2OMon. 2/m : B2/m
4.FL.60JenseniteCu3[TeO6] · 2H2OMon. 2/m : P21/m
4.FL.70Akdalaite5Al2O3 · H2OHex.
4.FL.75CafetiteCaTi2O5 · H2OMon. 2/m : P21/b

Fluorescence of LeisingiteHide


Other InformationHide

IR Spectrum:
[cm-1]: 3253 (structural water with an O-H stretching frequency), 1670 (H-O-H flexing frequency)
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 LeisingiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Roberts, A.C., Groat, L.A., Grice, J.D., Gault, R.A., Jensen, M.C., Moffatt, E.A., and Stirling, J.A.R. (1996) Leisingite, Cu(Mg,Cu,Fe,Zn)2Te6+O6.6H2O, a new mineral species from the Centennial Eureka mine, Juab County, Utah. Mineralogical Magazine: 60: 653-657.
Jambor, J.L., Roberts, A.C. (1997) New mineral names. American Mineralogist: 82: 207-210.
Mandarino, J.A. (1997) Abstracts of New Mineral Descriptions. Mineralogical Record: 28: 222.
Margison, S.M., Grice, J.D., and Groat, L.A. (1997) The crystal structure of leisingite, (Cu2+,Mg,Zn)2(Mg,Fe)Te6+O6·6H2O. The Canadian Mineralogist: 35: 759-763.
Jambor, J.L., Roberts, A.C. (1998) New mineral names. American Mineralogist: 83: 400-403.

Internet Links for LeisingiteHide

Localities for LeisingiteHide

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.
  • Utah
    • Juab Co.
      • East Tintic Mts
        • Tintic District
          • Eureka
Mineralogical Magazine(1996) 60, 653-657
          • Mammoth
            • Mammoth Peak
Collected by and in the collection of Brent Thorne. Raman analyzed by Bob Housley. EDS analyzed by KayGeeDee minerals.
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: March 18, 2019 20:24:21 Page generated: March 18, 2019 11:20:03
Go to top of page