Graulichite-(Ce)
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Formula:
CeFe33+(AsO4)2(OH)6
System:
Trigonal
Colour:
Light-green to brownish
Lustre:
Resinous
Member of:
Name:
for Jean-Marie Graulich (born in Liège, 4th May 1920; died on 7th March 2001), mining engineer and honorary Director of the Geological Survey of Belgium
Classification of Graulichite-(Ce)
Approved
Approval Year:
2002
7/B.36-152
8.BL.13
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
Physical Properties of Graulichite-(Ce)
Resinous
Diaphaneity (Transparency):
Transparent
Colour:
Light-green to brownish
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
4.42 g/cm3 (Calculated)
Optical Data of Graulichite-(Ce)
Type:
Uniaxial (-)
Chemical Properties of Graulichite-(Ce)
Formula:
CeFe33+(AsO4)2(OH)6
Crystallography of Graulichite-(Ce)
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Cell Parameters:
a = 7.26 Å, c = 16.77 Å
Ratio:
a:c = 1 : 2.31
Unit Cell Volume:
V 765.49 ų (Calculated from Unit Cell)
Z:
3
X-Ray Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.906 | (25) |
| 3.636 | (40) |
| 3.052 | (100) |
| 2.792 | (30) |
| 2.239 | (35) |
| 1.817 | (35) |
Type Occurrence of Graulichite-(Ce)
Relationship of Graulichite-(Ce) to other Species
Member of:
Other Members of Group:
| Arsenocrandallite | CaAl3(AsO4)(AsO3OH)(OH)6 |
| Arsenoflorencite-(Ce) | CeAl3(AsO4)2(OH)6 |
| Arsenoflorencite-(La) | LaAl3(AsO4)2(OH)6 |
| Arsenoflorencite-(Nd) | NdAl3(AsO4)2(OH)6 |
| Arsenogorceixite | BaAl3(AsO4)(AsO3OH)(OH)6 |
| Arsenogoyazite | SrAl3(AsO4)(AsO3OH)(OH)6 |
| Arsenowaylandite | BiAl3(AsO4)2(OH)6 |
| Dussertite | BaFe33+(AsO4)(AsO3OH)(OH)6 |
| Philipsbornite | PbAl3(AsO4)2(OH)5 · H2O |
| Segnitite | PbFe33+(AsO4)2(OH,H2O)6 |
| 8.BL.05 | Beudantite | PbFe3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | Corkite | PbFe3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Hidalgoite | PbAl3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Kemmlitzite | SrAl3(AsO4)(SO4)(OH)6 |
| 8.BL.05 | Svanbergite | SrAl3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Woodhouseite | CaAl3(PO4)(SO4)(OH)6 |
| 8.BL.05 | Gallobeudantite | PbGa3(AsO4)(SO4)(OH)6 |
| 8.BL.10 | Arsenogoyazite | SrAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Arsenogorceixite | BaAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Arsenocrandallite | CaAl3(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Benauite | SrFe33+(HPO4,PO4)2(OH)6 |
| 8.BL.10 | Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Dussertite | BaFe33+(AsO4)(AsO3OH)(OH)6 |
| 8.BL.10 | Eylettersite | Th0.75Al3(PO4)2(OH)6 |
| 8.BL.10 | Gorceixite | BaAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Goyazite | SrAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Kintoreite | PbFe3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Philipsbornite | PbAl3(AsO4)2(OH)5 · H2O |
| 8.BL.10 | Plumbogummite | PbAl3(PO4)(PO3OH)(OH)6 |
| 8.BL.10 | Segnitite | PbFe33+(AsO4)2(OH,H2O)6 |
| 8.BL.10 | Springcreekite | BaV33+(PO4)2(OH,H2O)6 |
| 8.BL.13 | Arsenoflorencite-(La) | LaAl3(AsO4)2(OH)6 |
| 8.BL.13 | Arsenoflorencite-(Nd) | NdAl3(AsO4)2(OH)6 |
| 8.BL.13 | Arsenoflorencite-(Ce) | CeAl3(AsO4)2(OH)6 |
| 8.BL.13 | Florencite-(Ce) | CeAl3(PO4)2(OH)6 |
| 8.BL.13 | Florencite-(La) | LaAl3(PO4)2(OH)6 |
| 8.BL.13 | Florencite-(Nd) | NdAl3(PO4)2(OH)6 |
| 8.BL.13 | Waylandite | BiAl3(PO4)2(OH)6 |
| 8.BL.13 | Zaïrite | BiFe33+(PO4)2(OH)6 |
| 8.BL.13 | Arsenowaylandite | BiAl3(AsO4)2(OH)6 |
| 8.BL.13 | Florencite-(Sm) | SmAl3(PO4)2(OH)6 |
| 8.BL.15 | Viitaniemiite | Na(Ca,Mn2+)Al(PO4)(F,OH)3 |
| 8.BL.25 | Pattersonite | PbFe33+(PO4)2(OH)5 · H2O |
Other Names for Graulichite-(Ce)
Name in Other Languages:
Other Information
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 Graulichite-(Ce)
Reference List:
Hatert, F., P. Lefevre, M. Pasero & A-M. Fransolet (2003) Graulichite-(Ce), a new arsenate mineral from the Stavelot Massif, Belgium.: European Journal of Mineralogy: 15: 733-739.
Walenta, K., Birch, B. & Theye, T. (2006): Graulichit-(Ce) von der Grube Clara bei Oberwolfach im mittleren Schwarzwald. Der Aufschluss 57, 67-70.
Walenta, K., Birch, B. & Theye, T. (2006): Graulichit-(Ce) von der Grube Clara bei Oberwolfach im mittleren Schwarzwald. Der Aufschluss 57, 67-70.
Internet Links for Graulichite-(Ce)
mindat.org URL:
https://www.mindat.org/min-11383.html
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External Links:
Mineral Dealers:
Localities for Graulichite-(Ce)
This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
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(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Belgium (TL) | |
| European Journal of Mineralogy 15 (2003), 733 |
Germany | |
| Walenta, K., Birch, B. & Theye, T. (2006): Graulichit-(Ce) von der Grube Clara bei Oberwolfach im mittleren Schwarzwald. Der Aufschluss 57, 67-70. (in German) |
Hourt quarry, Grand Halleux, Vielsalm, Stavelot Massif, Luxembourg Province, Belgium