Phosphoellenbergerite
A valid IMA mineral species
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About Phosphoellenbergerite
François T. V. Ellenberger
Formula:
(Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6
Colour:
Azure blue
Lustre:
Vitreous
Hardness:
6½
Specific Gravity:
3.0
Crystal System:
Hexagonal
Name:
Named as the phosphate analogue of ellenbergerite. The root name is for François Théodore Victor Ellenberger (5 May 1915, Lealui, Northern Rhodesia (now Zambia) - 11 January 2000, Bures-sur-Yvette, France), Professor of Structural Geology, University of the Sorbonne, Paris. In 1976 he created the French Committee of History of Geology (COFRHIGEO) and published 'Histoire de la Géologie' in two volumes (1988 and 1994).
Unique Identifiers
Mindat ID:
7232
Long-form identifier:
mindat:1:1:7232:4
IMA Classification of Phosphoellenbergerite
Approved
Approval year:
1994
First published:
1998
Classification of Phosphoellenbergerite
8.BB.55
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Pell | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Phosphoellenbergerite
Vitreous
Transparency:
Transparent, Translucent
Colour:
Azure blue
Streak:
White
Hardness:
6½ on Mohs scale
Cleavage:
None Observed
Density:
3.0 g/cm3 (Measured) 2.93 g/cm3 (Calculated)
Optical Data of Phosphoellenbergerite
Type:
Uniaxial (-)
RI values:
nω = 1.606 - 1.609 nε = 1.588 - 1.589
Max. Birefringence:
δ = 0.018 - 0.020
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Pleochroism:
Visible
Comments:
E = blue, O = colorless.
Chemistry of Phosphoellenbergerite
Mindat Formula:
(Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6
Element Weights:
Crystallography of Phosphoellenbergerite
Crystal System:
Hexagonal
Class (H-M):
6mm - Dihexagonal Pyramidal
Space Group:
P63mc
Cell Parameters:
a = 12.467(2) Å, c = 5.0437(4) Å
Ratio:
a:c = 1 : 0.405
Unit Cell V:
678.90 ų (Calculated from Unit Cell)
Z:
1
Twinning:
None
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014640 | Phosphoellenbergerite | Raade G, Romming C, Medenbach O (1998) Carbonate-substituted phosphoellenbergerite from Modum, Norway: description and crystal structure Mineralogy and Petrology 62 89-101 | 1998 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.685 Å | (100) |
| 3.170 Å | (95) |
| 2.702 Å | (80) |
| 2.381 Å | (70) |
| 2.221 Å | (80) |
| 1.555 Å | (80) |
| 1.426 Å | (80) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Phosphoellenbergerite
General Appearance of Type Material:
Blue, anhedral inclusions, up to 0.5 mm long, in heneuite .
Geological Setting of Type Material:
In lenses of Precambrian serpentine-magnesite rocks of the Tingelstadtjern deposit, Modum terrane, southern Norway.
Associated Minerals at Type Locality:
Synonyms of Phosphoellenbergerite
Other Language Names for Phosphoellenbergerite
Common Associates
Associations Based on Photo Data:
| 6 photos of Phosphoellenbergerite associated with Althausite | Mg4(PO4)2(OH,O)(F,◻) |
| 5 photos of Phosphoellenbergerite associated with Pyrope | Mg3Al2(SiO4)3 |
| 4 photos of Phosphoellenbergerite associated with Heneuite | CaMg5(CO3)(PO4)3(OH) |
| 4 photos of Phosphoellenbergerite associated with Chlorapatite | Ca5(PO4)3Cl |
| 3 photos of Phosphoellenbergerite associated with Raadeite | Mg7(PO4)2(OH)8 |
| 3 photos of Phosphoellenbergerite associated with Magnesiostaurolite | Mg(Mg,Li)3(Al,Mg)18Si8O44(OH)4 |
| 2 photos of Phosphoellenbergerite associated with Rutile | TiO2 |
| 2 photos of Phosphoellenbergerite associated with Goethite | Fe3+O(OH) |
| 1 photo of Phosphoellenbergerite associated with Kyanite | Al2(SiO4)O |
| 1 photo of Phosphoellenbergerite associated with Holtedahlite | Mg2(PO4)(OH) |
Related Minerals - Strunz-mindat Grouping
| 8.BB. | Moabite | NiFe3+(PO4)O |
| 8.BB. | Tilasite | CaMg(AsO4)F |
| 8.BB. | Paulgrothite | Cu9Fe3+O4(PO4)4Cl3 |
| 8.BB. | Karlditmarite | Cu9O4(PO4)2(SO4)2 |
| 8.BB. | Milkovoite | Cu4O(PO4)(AsO4) |
| 8.BB.X | Arsenowagnerite | Mg2(AsO4)F |
| 8.BB.05 | Tavorite | LiFe3+(PO4)(OH) |
| 8.BB.05 | Amblygonite | LiAl(PO4)F |
| 8.BB.05 | Montebrasite | LiAl(PO4)(OH) |
| 8.BB.10 | Zwieselite | Fe2+2(PO4)F |
| 8.BB.10 | Triplite | Mn2+2(PO4)F |
| 8.BB.15 | 'Unnamed (Sb-analogue of Auriacusite)' | Fe3+Cu2+[(Sb,As)O4]O |
| 8.BB.15 | Joosteite | Mn2+(Mn3+,Fe3+)(PO4)O |
| 8.BB.15 | Hydroxylwagnerite | Mg2(PO4)(OH) |
| 8.BB.15 | Wagnerite | Mg2(PO4)F |
| 8.BB.15 | Stanĕkite | (Mn2+,Fe2+,Mg)Fe3+(PO4)O |
| 8.BB.15 | Triploidite | Mn2+2(PO4)(OH) |
| 8.BB.15 | Sarkinite | Mn2+2(AsO4)(OH) |
| 8.BB.15 | Wolfeite | Fe2+2(PO4)(OH) |
| 8.BB.20 | Holtedahlite | Mg2(PO4)(OH) |
| 8.BB.20 | Satterlyite | (Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6 |
| 8.BB.25 | Althausite | Mg4(PO4)2(OH,O)(F,◻) |
| 8.BB.30 | Zincolivenite | CuZn(AsO4)(OH) |
| 8.BB.30 | Adamite | Zn2(AsO4)(OH) |
| 8.BB.30 | Libethenite | Cu2(PO4)(OH) |
| 8.BB.30 | Zincolibethenite | CuZn(PO4)(OH) |
| 8.BB.30 | Eveite | Mn2+2(AsO4)(OH) |
| 8.BB.30 | Olivenite | Cu2(AsO4)(OH) |
| 8.BB.30 | Auriacusite | Fe3+Cu2+(AsO4)O |
| 8.BB.35 | Paradamite | Zn2(AsO4)(OH) |
| 8.BB.35 | Tarbuttite | Zn2(PO4)(OH) |
| 8.BB.40 | Barbosalite | Fe2+Fe3+2(PO4)2(OH)2 |
| 8.BB.40 | Scorzalite | Fe2+Al2(PO4)2(OH)2 |
| 8.BB.40 | Lazulite | MgAl2(PO4)2(OH)2 |
| 8.BB.40 | Meizhouite | Fe2+V3+2(PO4)2(OH)2 |
| 8.BB.40 | Hentschelite | CuFe3+2(PO4)2(OH)2 |
| 8.BB.40 | Wilhelmkleinite | ZnFe3+2(AsO4)2(OH)2 |
| 8.BB.45 | Dokuchaevite | Cu8O2(VO4)3Cl3 |
| 8.BB.45 | Trolleite | Al4(PO4)3(OH)3 |
| 8.BB.45 | Yaroshevskite | Cu9O2(VO4)4Cl2 |
| 8.BB.50 | Namibite | Cu(BiO)2(VO4)(OH) |
| 8.BB.50 | Aleutite | [Cu5O2](AsO4)(VO4) · (Cu,K,Pb,Rb,Cs,)Cl |
| 8.BB.52a | Ericlaxmanite | Cu4O(AsO4)2 |
| 8.BB.52b | Kozyrevskite | Cu4O(AsO4)2 |
| 8.BB.55 | Popovite | Cu5O2(AsO4)2 |
| 8.BB.60 | Urusovite | CuAl(AsO4)O |
| 8.BB.65 | Theoparacelsite | Cu3(As2O7)(OH)2 |
| 8.BB.70 | Turanite | Cu5(VO4)2(OH)4 |
| 8.BB.75 | Stoiberite | Cu5(VO4)2O2 |
| 8.BB.80 | Fingerite | Cu11(VO4)6O2 |
| 8.BB.85 | Averievite | Cu6(VO4)2O2Cl2 |
| 8.BB.90 | Richellite | CaFe3+2(PO4)2(OH,F)2 |
| 8.BB.90 | Lipscombite | Fe2+Fe3+2(PO4)2(OH)2 |
| 8.BB.90 | Zinclipscombite | ZnFe3+2(PO4)2(OH)2 |
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.
Internet Links for Phosphoellenbergerite
mindat.org URL:
https://www.mindat.org/min-7232.html
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References for Phosphoellenbergerite
Reference List:
Chopin, Christian (1984) Coesite and pure pyrope in high-grade blueschists of the Western Alps: a first record and some consequences. Contributions to Mineralogy and Petrology, 86 (2) 107-118 doi:10.1007/bf00381838
Chopin, Christian, Klaska, Rolf, Medenbach, Olaf, Dron, Dominique (1986) Ellenbergerite, a new high-pressure Mg-Al-(Ti,Zr)-silicate with a novel structure based on face-sharing octahedra. Contributions to Mineralogy and Petrology, 92 (3) 316-321 doi:10.1007/bf00572160
Brunet, Fabrice, Chopin, Christian, Seifert, Friedrich (1998) Phase relations in the MgO–P2O5–H2O system and the stability of phosphoellenbergerite: petrological implications. Contributions to Mineralogy and Petrology, 131 (1) 54-70 doi:10.1007/s004100050378
Raade, G., Romming, C., Medenbach, O. (1998) Carbonate-substituted phosphoellenbergerite from Modum, Norway: description and crystal structure. Mineralogy and Petrology, 62 (1) 89-101 doi:10.1007/bf01173764
Localities for Phosphoellenbergerite
Showing 6 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Italy | |
| Piccoli et al. (2007) |
| Brunet et al. (1998) +1 other reference | |
| - (n.d.) |
| Piccoli et al. (2007) |
Norway | |
| - (n.d.) +1 other reference |
| Raade et al. (1998) +1 other reference |
Quick NavTopAbout PhosphoellenbergeriteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Case Parigi, Martiniana Po, Cuneo Province, Piedmont, Italy