IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
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 Educators
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
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Mourite

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

About MouriteHide

Formula:
UMo5O12(OH)10
Colour:
Violet
Lustre:
Adamantine
Hardness:
3
Specific Gravity:
3.78 - 4.12
Crystal System:
Monoclinic
Name:
Named by E.V. Kopchenova, K.V. Skvortsova, N.I. Silantieva, G.A. Sidorenko, and L.V. Mikhailova in 1962 for the composition, containing MOlybdenum and URanium.
See also the visually similar ilsemannite.


Classification of MouriteHide

Approved
First Published:
1962
4.FL.80

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
5.9.4.1

5 : OXIDES CONTAINING URANIUM OR THORIUM
9 : Miscellaneous
27.3.6

27 : Sulphites, Chromates, Molybdates and Tungstates
3 : Molybdates

Physical Properties of MouriteHide

Adamantine
Transparency:
Translucent, Opaque
Colour:
Violet
Streak:
Violet-blue
Hardness:
Cleavage:
Very Good
{100}
Density:
3.78 - 4.12 g/cm3 (Measured)    4.22 g/cm3 (Calculated)

Optical Data of MouriteHide

Type:
Biaxial
RI values:
nα = 1.790
Max Birefringence:
δ = 1.790
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Type:
Anisotropic
Anisotropism:
Strong
Dispersion:
r > v perceptible
Pleochroism:
Visible
Comments:
Pronounced. Pale violet-blue with greenish tint on X and Y, dark blue-violet on Z.

Chemical Properties of MouriteHide

Formula:
UMo5O12(OH)10
IMA Formula:
(UO2)(Mo6+)5O16 · 5H2O

Crystallography of MouriteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 24.42 Å, b = 7.18 Å, c = 9.89 Å
β = 102.17°
Ratio:
a:b:c = 3.401 : 1 : 1.377
Unit Cell V:
1,695.10 ų (Calculated from Unit Cell)
Morphology:
As plates with rectangular outlines, elongated parallel to [010], flattened on {100}.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
12.77 (9)
5.897 (10)
3.285 (7)
3.193 (7)
3.148 (7)
2.871 (8)
1.728 (8)

Type Occurrence of MouriteHide

General Appearance of Type Material:
Violet nodules, crusts, and plates.

Other Language Names for MouriteHide

German:Mourit
Spanish:Mourita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Iriginite6 photos of Mourite associated with Iriginite on mindat.org.
Ilsemannite4 photos of Mourite associated with Ilsemannite 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.65LeisingiteCuMg2Te6+O6 · 6H2OTrig. 3 : P3
4.FL.70Akdalaite5Al2O3 · H2OHex.
4.FL.75CafetiteCaTi2O5 · H2OMon. 2/m : P21/b
4.FL.85DeloryiteCu4(UO2)(MoO4)2(OH)6Mon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

27.3.1LindgreniteCu3(MoO4)2(OH)2Mon. 2/m : P21/m
27.3.2PowelliteCa(MoO4)Tet. 4/m : I41/a
27.3.3WulfenitePb(MoO4)Tet. 4/m : I41/a
27.3.4KoechliniteBi2MoO6Orth. mm2 : Pna21
27.3.5SedoviteU(MoO4)2Orth.
27.3.7Iriginite(UO2)Mo2O7 · 3H2OOrth. mmm (2/m 2/m 2/m) : Pbcm
27.3.8Umohoite(UO2)MoO4 · 2H2OTric.
27.3.9MoluraniteH4U4+(UO2)3(MoO4)7 · 18H2O
27.3.10CousiniteMgU2Mo2O11 · 6H2O
27.3.11Calcurmolite(Ca,Na)2(UO2)3Mo2(O,OH)11 · nH2O
27.3.12TengchongiteCaO · 6UO3 · 2MoO3 · 12H2OOrth.
27.3.13KamiokiteFe2Mo3O8Hex.
27.3.14FerrimolybditeFe2(MoO4)3 · nH2OOrth. mmm (2/m 2/m 2/m) : Pmmn

Other InformationHide

Thermal Behaviour:
When heated at 750 C, most of the mineral volatilizes leaving a small yellow residue giving the x-ray pattern of U3O8.
Notes:
Dissolves with difficulty in concentrated HCl on prolonged heating. Dissolves in concentrated HNO3 with separation of molybdic acid. Is insoluble in H2SO4
or 10% KOH. Dissolves in 2O% Na2CO3 solution on heating.

Radioactive.
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 MouriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kopchenova, E.V., Skvortsova, K.V., Silantieva, N.I., Sidorenko, G.A., Mikhailova, L.V. (1962) Mourite, a new supergene uranium-molybdenum mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 91(1): 67-71.
Fleischer, M. (1962) New mineral names. American Mineralogist: 47: 1216-1223.
International Mineralogical Association (1967) Commission on new minerals and mineral names. Mineralogical Magazine: 36: 131-136.
Smith, M.L., Marinenko, J., Weeks, A.D. (1971) Comparison of mourite from Karnes County, Texas with mourite from the U.S.S.R.. American Mineralogist: 56: 163-173.
Serezhkin, V.N., Osipov, B.S., Chuvaev, V.F. (1980) Structure and some physicochemical properties of mourite. Geokhimia (Geokhimiya), Moscow (1980): 10: 1557-1562.
(1980) Chemical Abstracts: 93: 57.

Internet Links for MouriteHide

Localities for MouriteHide

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.
Kazakhstan (TL)
 
  • Zhambyl
    • Chu-Ili Mts
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
USA
 
  • Texas
    • Karnes Co.
Smith, A.E. (1991), Texas Mineral Locations Index, Rocks & Min.: 66(3).
MINERALS OF THE KARNES URANIUM DISTRICT-THE FRANKLIN OF TEXAS Alan J. Cherepon, http://www.wma-minelife.com/uranium/papers/karnes.htm
Mineral and/or Locality  
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 1993-2018, 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: October 21, 2018 11:09:39 Page generated: September 12, 2018 03:44:26
Go to top of page