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Graulichite-(La)

A valid IMA mineral species
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05667750017272473361390.jpg
Graulichite-(La), etc.

Bou Skour Mine, Bou Skour mining district, Agdz Cercle, Zagora Province, Drâa-Tafilalet Region, Morocco
05667750017272473361390.jpg
Graulichite-(La), etc.

Bou Skour Mine, Bou Skour mining district, Agdz Cercle, Zagora Province, Drâa-Tafilalet Region, Morocco
09683150017271954043513.jpg
Graulichite-(La), etc.

Bou Skour Mine, Bou Skour mining district, Agdz Cercle, Zagora Province, Drâa-Tafilalet Region, Morocco
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About Graulichite-(La)Hide

05465130017271929803980.jpg
Jean-Marie Graulich
Formula:
LaFe3+3(AsO4)2(OH)6
Colour:
Yellow
Lustre:
Resinous
Hardness:
3½
Specific Gravity:
3.935 (Calculated)
Crystal System:
Trigonal
Name:
Named for its relation to graulichite-(Ce), and the predominance of the REE lanthanum over cerium. The root name is after Jean-Marie Graulich (4 May 1920, Liège, Belgium - 17 March 2001), mining engineer and honorary Director of the Geological Survey of Belgium.
The La analogue of graulichite-(Ce). The Fe3+ analogue of arsenoflorencite-(La). Unique combination of (species-defining) elements (at the upload time).


Unique IdentifiersHide

Mindat ID:
55384
Long-form identifier:
mindat:1:1:55384:5

Similar NamesHide

GraulichiteA synonym
Graulichite-(Ce)A valid IMA mineral speciesCeFe33+(AsO4)2(OH)6

IMA Classification of Graulichite-(La)Hide

IMA status:
Approved
IMA Formula:
LaFe3+3(As5+O4)2(OH)6
Approval year:
2021
First published:
2022
Approval history:
IMA No. 2020-093

Classification of Graulichite-(La)Hide

Strunz-mindat (2026):
8.BL.

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
Grl-LaIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Graulichite-(La)Hide

Lustre:
Resinous
Transparency:
Transparent
Colour:
Yellow
Streak:
Pale yellow
Hardness:
3½ on Mohs scale
Hardness Data:
Estimated
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
None observed.
Fracture:
Irregular/Uneven
Density:
3.935(28) g/cm3 (Calculated)
Comment:
Crystals are internally porous.

Chemistry of Graulichite-(La)Hide

Mindat Formula:
LaFe3+3(AsO4)2(OH)6
Element Weights:
Element% weight
O32.637 %
Fe24.411 %
As21.833 %
La20.239 %
H0.881 %

Calculated from ideal end-member formula.
Elements listed:
As, Fe, H, La, O - search for minerals with similar chemistry

Crystallography of Graulichite-(La)Hide

Crystal System:
Trigonal
Class (H-M):
3m(32/m) - Hexagonal Scalenohedral
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 7.252(13) Å, c = 16.77(3) Å
Ratio:
a:c = 1 : 2.312
Unit Cell V:
763.80 ų (Calculated from Unit Cell)
Morphology:
Rhombohedral crystals.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.86 Å(m)
3.045 Å(s)
2.511 Å(mw)
2.239 Å(m)
1.960 Å(mw)
1.813 Å(mw)
1.689 Å(mw)
1.478 Å(m)
Locality:
Bou Skour Mine, Bou Skour mining district, Agdz Cercle, Zagora Province, Drâa-Tafilalet Region, Morocco
Comments:
Bou Skour Mine, Zagora Province, Morocco. Data from the type description.

Type Occurrence of Graulichite-(La)Hide

Type Locality:
ⓘ Bou Skour Mine, Bou Skour mining district, Agdz Cercle, Zagora Province, Drâa-Tafilalet Region, Morocco
General Appearance of Type Material:
Rhombohedral crystals, up to 0.1 mm in size.
Place of Conservation of Type Material:
Mineralogical collections of the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italy, catalogue number 19924.
Geological Setting of Type Material:
Oxidation zone of a Cu deposit; the REEs most likely derived from the local igneous rocks; the association includes a yet unspecified synchysite-like REE carbonate.
Associated Minerals at Type Locality:
Agardite-(La)ConichalciteMalachite

Synonyms of Graulichite-(La)Hide

Other Language Names for Graulichite-(La)Hide

Relationship of Graulichite-(La) to other SpeciesHide

Member of:
Dussertite Group > Alunite Supergroup
Other Members of Dussertite Group:
ArsenocrandalliteCaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m)
Arsenoflorencite-(Ce)CeAl3(AsO4)2(OH)6Trig. 3m(32/m) : R3m
Arsenoflorencite-(La)LaAl3(AsO4)2(OH)6Trig. 3m(32/m) : R3m
'Arsenoflorencite-(Nd)'NdAl3(AsO4)2(OH)6Trig.
ArsenogorceixiteBaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
ArsenogoyaziteSrAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
'Arsenowaylandite'BiAl3(AsO4)2(OH)6Trig.
DussertiteBaFe3+3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
Graulichite-(Ce)CeFe3+3(AsO4)2(OH)6Trig. 3m(32/m) : R3m
Karlseifertite Pb(Ga2Ge)(AsO4)2(OH)6Trig. 3m(32/m) : R3m
PhilipsbornitePbAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
SegnititePbFe3+3AsO4(AsO3OH)(OH)6Trig. 3m(32/m) : R3m

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Graulichite-(La) associated with Agardite-(La)LaCu6(AsO4)3(OH)6 · 3H2O

Related Minerals - Strunz-mindat GroupingHide

8.BL.KiryuiteNaMnAl(PO4)F3Mon. 2/m : P21/m
8.BL.MetaheimitePbCu2(AsO4)(OH)3Mon. 2/m : P21/b
8.BL.ClouditeBaFe3+3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.OberwolfachiteSrFe3+3(AsO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.ArsenobenauiteSrFe3+3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.05GallobeudantitePbGa3(AsO4)(SO4)(OH)6Trig. 3m : R3m
8.BL.05SlottaiteSrFe3+3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05CorkitePbFe3+3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05HidalgoitePbAl3(AsO4)(SO4)(OH)6Trig. 3m : R3m
8.BL.05HinsdalitePbAl3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05'UM2011-07-POSO:AlBaH'BaAl3(PO4)(SO4)(OH)6
8.BL.05KemmlitziteSrAl3(AsO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05BeudantitePbFe3+3(AsO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05WeileriteBaAl3(AsO4)(SO4)(OH)6Hex.
8.BL.05WoodhouseiteCaAl3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05SvanbergiteSrAl3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.10SegnititePbFe3+3AsO4(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10ArsenogoyaziteSrAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10ArsenogorceixiteBaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10DussertiteBaFe3+3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10GalloplumbogummitePb(Ga,Al,Ge)3(PO4)2(OH)6Trig. 3m : R3m
8.BL.10StibiosegnititePb(Fe3+2.5Sb5+0.5)(AsO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.10 va'Viséite'
8.BL.10ArsenocrandalliteCaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m)
8.BL.10BenauiteSrFe3+3(PO4)(PO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10PhilipsbornitePbAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10CrandalliteCaAl3(PO4)(PO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10SpringcreekiteBaV3+3(PO4)2(OH,H2O)6Trig. 3m(32/m) : R3m
8.BL.10EylettersiteTh0.75Al3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.10KintoreitePbFe3(PO4)(PO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10PlumbogummitePbAl3(PO4)(PO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10GorceixiteBaAl3(PO4)(PO3OH)(OH)6Mon. m : Bm
8.BL.10GoyaziteSrAl3(PO4)(PO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.13Florencite-(Ce)CeAl3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13Florencite-(La)LaAl3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13Florencite-(Nd)NdAl3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13ZaïriteBiFe3+3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13Arsenoflorencite-(La)LaAl3(AsO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13'Arsenoflorencite-(Nd)'NdAl3(AsO4)2(OH)6Trig.
8.BL.13'Unnamed (As-analogue of Zaïrite)'(Bi,Pb)Fe3+3(AsO4)2(OH)6
8.BL.13Arsenoflorencite-(Ce)CeAl3(AsO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13Graulichite-(Ce)CeFe3+3(AsO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13'Arsenowaylandite'BiAl3(AsO4)2(OH)6Trig.
8.BL.13WaylanditeBiAl3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13Florencite-(Sm)SmAl3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.15ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)3Mon. 2/m : P21/m
8.BL.25PattersonitePbFe3+3(PO4)2(OH)5 · H2OTric. 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.

Internet Links for Graulichite-(La)Hide

References for Graulichite-(La)Hide

Localities for Graulichite-(La)Hide

Showing 2 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Morocco (TL)
 
  • Drâa-Tafilalet Region
    • Zagora Province
      • Agdz Cercle
        • Bou Skour mining district
Miyawaki et al. (2021) +2 other references
Biagioni et al. (2022) +1 other reference
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