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Guilleminite

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Guilleminite, etc.

Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, DR Congo
Guilleminite

Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, DR Congo
Guilleminite, etc.

Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, DR Congo
Guilleminite, etc.

Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, DR Congo
Guilleminite

Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, DR Congo
Guilleminite, etc.

Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, DR Congo
Guilleminite, etc.

Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, DR Congo
Guilleminite

Musonoi Mine, Kolwezi, Kolwezi District, Lualaba, DR Congo
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About GuilleminiteHide

Claude Guillemin in the field in Congo
Formula:
Ba(UO2)3(SeO3)2(OH)4 · 3H2O
Colour:
Bright yellow
Lustre:
Waxy, Greasy, Dull, Earthy
Hardness:
2
Specific Gravity:
4.88
Crystal System:
Orthorhombic
Name:
Named by R. Pierrot, J. Toussaint, and T. Verbeek in 1965 in honor of Jean Claude Guillemin [September 13, 1923 France - April 6, 1994 France], chemist and mineralogist, 1957-1969 he was professor at the Ecole des Mines in Paris and curator of the mineral collection of the Ecole des Mines. Guillemin was director general of the Union Miniere du Haut-Katanga and co-founder of the International Mineralogical Association.
Compare 'UM1966-05-SeO:BaHPbU'.


Classification of GuilleminiteHide

IMA status:
Approved
Strunz 8th ed.:
4/K.11-30
Nickel-Strunz 10th (pending) ed.:
4.JJ.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
J : Selenites with additional anions, with H2O
Dana 8th ed.:
34.7.3.1

34 : SELENITES, TELLURITES AND SULFITES
7 : Hydrated Selenites, Tellurites and Sulfites containing Hydroxyl or Halogen
Hey's CIM Ref.:
28.1.9

28 : Selenites, Selenates, Tellurites, and Tellurates
1 : Selenites

Physical Properties of GuilleminiteHide

Lustre:
Waxy, Greasy, Dull, Earthy
Transparency:
Translucent
Colour:
Bright yellow
Streak:
Light yellow
Hardness:
2 on Mohs scale
Hardness Data:
Estimated
Tenacity:
Brittle
Cleavage:
Perfect
{100} perfect, {010} good.
Density:
4.88 g/cm3 (Measured)    5.08 g/cm3 (Calculated)

Optical Data of GuilleminiteHide

Type:
Biaxial (-)
RI values:
nα = 1.720 nβ = 1.798 nγ = 1.805
2V:
Measured: 35° , Calculated: 32°
Birefringence:
0.085
Max Birefringence:
δ = 0.085
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v strong
Pleochroism:
Strong
Comments:
X=bright yellow Y=yellow Z=colorless

Chemical Properties of GuilleminiteHide

Formula:
Ba(UO2)3(SeO3)2(OH)4 · 3H2O
IMA Formula:
Ba(UO2)3(Se4+O3)2O2 · 3H2O
Elements listed:
Ba, H, O, Se, U - search for minerals with similar chemistry

Crystallography of GuilleminiteHide

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Pmn21
Cell Parameters:
a = 7.29 Å, b = 16.87 Å, c = 7.07 Å
Ratio:
a:b:c = 0.432 : 1 : 0.419
Unit Cell V:
869.48 ų (Calculated from Unit Cell)
Z:
2
Comment:
Space group is P21nm

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.39 (100)
7.29 (100)
6.68 (60)
6.51 (20)
3.55 (80)
3.17 (40)
3.04 (60)
2.80 (60)
Comments:
ICDD 18-582

Type Occurrence of GuilleminiteHide

Type Locality:
ⓘ Musonoi Mine (Musonoi Extension Mine), Kolwezi, Kolwezi District, Lualaba, DR Congo
General Appearance of Type Material:
selenian digenite
malachite
derricksite
marthozite
Geological Setting of Type Material:
Oxidized zone of a Uranium-Selenium-Copper deposit

Synonyms of GuilleminiteHide

Other Language Names for GuilleminiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Malachite14 photos of Guilleminite associated with Malachite on mindat.org.
Vandenbrandeite13 photos of Guilleminite associated with Vandenbrandeite on mindat.org.
Marthozite7 photos of Guilleminite associated with Marthozite on mindat.org.
Cuprosklodowskite7 photos of Guilleminite associated with Cuprosklodowskite on mindat.org.
Demesmaekerite6 photos of Guilleminite associated with Demesmaekerite on mindat.org.
Wulfenite4 photos of Guilleminite associated with Wulfenite on mindat.org.
Kasolite4 photos of Guilleminite associated with Kasolite on mindat.org.
Torbernite4 photos of Guilleminite associated with Torbernite on mindat.org.
Digenite2 photos of Guilleminite associated with Digenite on mindat.org.
Chalcomenite1 photo of Guilleminite associated with Chalcomenite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.JJ.05MarthoziteCu2+(UO2)3(SeO3)2O2 · 8H2OOrth.
4.JJ.15PiretiteCa(UO2)3(SeO3)2(OH)4 · 4H2OOrth.
4.JJ.20DemesmaekeritePb2Cu5(UO2)2(SeO3)6(OH)6 · 2H2OTric.
4.JJ.25Haynesite(UO2)3(OH)2(SeO3)2 · 5H2OOrth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

28.1.1ChalcomeniteCuSeO3 · 2H2OOrth. 2 2 2 : P21 21 21
28.1.2ClinochalcomeniteCuSeO3 · 2H2OMon.
28.1.3FrancisiteCu3Bi(SeO3)2O2ClOrth. mmm (2/m 2/m 2/m) : Pmmn
28.1.4SofiiteZn2(SeO3)Cl2Orth.
28.1.5MolybdomenitePbSeO3Mon.
28.1.6Haynesite(UO2)3(OH)2(SeO3)2 · 5H2OOrth.
28.1.7DerriksiteCu4(UO2)(SeO3)2(OH)6
28.1.8MarthoziteCu2+(UO2)3(SeO3)2O2 · 8H2OOrth.
28.1.10DemesmaekeritePb2Cu5(UO2)2(SeO3)6(OH)6 · 2H2OTric.
28.1.11MandarinoiteFe3+2(Se4+O3)3 · (6-x)H2O (x = 0.0-1.0)Mon. 2/m : P21/b
28.1.12CobaltomeniteCoSeO3 · 2H2OMon.
28.1.13AhlfelditeNi(SeO3) · 2H2OMon. 2/m

Fluorescence of GuilleminiteHide

In UV light:
Not fluorescent.

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 GuilleminiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bulletin Mineralogie (1965): 88:132.
American Mineralogist (1965): 50: 2103.
Cooper, M.A. and Hawthorne, F.C. (1995) The crystal structure of guilleminite, a hydrated Ba-U-Se sheet structure. Canadian Mineralogist: 33: 1103-1109.
Cooper, M.A. and Hawthorne, F.C. (2001) Structure topology and hydrogen bonding in marthozite, Cu 2+[(UO2)3(SeO3)2O2](H2O)8, a comparison with guilleminite, Ba[(UO2)3(SeO3)2O2](H2O)3. Canadian Mineralogist: 39: 797-807.
Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Internet Links for GuilleminiteHide

Localities for GuilleminiteHide

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.
DR Congo
 
  • Haut-Katanga
    • Kambove District
      • Shinkolobwe
M. Deliens
  • Lualaba
    • Kolwezi District
      • Kolwezi
Bull.Soc.fr.Min.Crist. (1965) 88, 132-135.; Wilson, W.E. (2018) The Musonoi mine, Kolwezi District, Lualaba Province, Democratic Republic of the Congo. Mineralogical Record 49: 236-304.; http://www.champ-hannut.be/fichierpdf/Rev%20SP%202017%20NL.pdf
France
 
  • Auvergne-Rhône-Alpes
    • Puy-de-Dôme
      • Saint-Amant-Tallende
        • Olloix
Le Règne Minéral, Hors Série IV (1998)
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