Pseudolaueite
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About Pseudolaueite
Formula:
Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Colour:
Orange-yellow to amber-yellow
Lustre:
Sub-Vitreous, Resinous
Hardness:
3
Specific Gravity:
2.463
Crystal System:
Monoclinic
Name:
Named in 1956 by Hugo Strunz for the chemical similarity to laueite. (Stewartite and strunzite have different amounts of structural water and are not strictly polymorphs of laueite.)
Type Locality:
Polymorph of:
Classification of Pseudolaueite
Approved, 'Grandfathered' (first described prior to 1959)
7/D.09-40
8.DC.30
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
C : With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
C : With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
42.11.10.3
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
19.12.25
19 : Phosphates
12 : Phosphates of Mn
19 : Phosphates
12 : Phosphates of Mn
Physical Properties of Pseudolaueite
Sub-Vitreous, Resinous
Transparency:
Transparent, Translucent
Colour:
Orange-yellow to amber-yellow
Streak:
White
Hardness:
3 on Mohs scale
Comment:
White to pale yellow
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
2.463 g/cm3 (Measured) 2.51 g/cm3 (Calculated)
Optical Data of Pseudolaueite
Type:
Biaxial (+)
RI values:
nα = 1.626 nβ = 1.650 nγ = 1.686
2V:
Measured: 80° , Calculated: 80°
Birefringence:
0.060
Max Birefringence:
δ = 0.060

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
weak
Optical Extinction:
Z=b, X^c = 2°, Y^a = 12°
Pleochroism:
Weak
Comments:
X = Y pale yellow, Z = yellow
Chemical Properties of Pseudolaueite
Formula:
Mn2+Fe3+2(PO4)2(OH)2 · 8H2O
Crystallography of Pseudolaueite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/a
Cell Parameters:
a = 9.59 Å, b = 7.42 Å, c = 10.16 Å
β = 104.43°
β = 104.43°
Ratio:
a:b:c = 1.292 : 1 : 1.369
Unit Cell V:
700.16 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Pseudohexagonal tablets, also nearly tabulat to slightly columnar
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) |
---|---|---|---|---|---|---|---|
0000193 | Pseudolaueite | Baur W H (1969) A comparison of the crystal structures of pseudolaueite and laueite American Mineralogist 54 1312-1323 | ![]() | 1969 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
9.926 Å | (100) |
5.869 Å | (70) |
4.678 Å | (30) |
3.908 Å | (30) |
3.472 Å | (40) |
3.186 Å | (30) |
3.069 Å | (30) |
Geological Environment
Geological Setting:
Late stage phosphate mineralization in granite pegmatite
Type Occurrence of Pseudolaueite
General Appearance of Type Material:
Amber-yellow pseudohexagonal plates.
Geological Setting of Type Material:
Late stage crystallization of phosphates in a granite pegmatite
Associated Minerals at Type Locality:
Other Language Names for Pseudolaueite
Relationship of Pseudolaueite to other Species
Structurally related to group(s):
Laueite Group | M12+M23+M33+(PO4)2(OH)2 · 8H2O |
Common Associates
Associated Minerals Based on Photo Data:
6 photos of Pseudolaueite associated with Stewartite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O |
3 photos of Pseudolaueite associated with Strunzite | Mn2+Fe3+2(PO4)2(OH)2 · 6H2O |
3 photos of Pseudolaueite associated with Rockbridgeite | Fe2+Fe3+4(PO4)3(OH)5 |
3 photos of Pseudolaueite associated with Laueite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O |
2 photos of Pseudolaueite associated with Whitmoreite | Fe2+Fe3+2(PO4)2(OH)2 · 4H2O |
1 photo of Pseudolaueite associated with Cacoxenite | Fe3+24AlO6(PO4)17(OH)12 · 75H2O |
1 photo of Pseudolaueite associated with Molybdenite | MoS2 |
1 photo of Pseudolaueite associated with Quartz | SiO2 |
1 photo of Pseudolaueite associated with Mitridatite | Ca2Fe3+3(PO4)3O2 · 3H2O |
1 photo of Pseudolaueite associated with Phosphosiderite | FePO4 · 2H2O |
Related Minerals - Nickel-Strunz Grouping
8.DC. | Césarferreiraite | Fe2+ Fe3+2(AsO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
8.DC.05 | Nissonite | Cu2Mg2(PO4)2(OH)2 · 5H2O | Mon. |
8.DC.07 | Euchroite | Cu2(AsO4)(OH) · 3H2O | Orth. 2 2 2 : P21 21 21 |
8.DC.10 | Legrandite | Zn2(AsO4)(OH) · H2O | Mon. 2/m : P21/b |
8.DC.12 | Strashimirite | Cu8(AsO4)4(OH)4 · 5H2O | Mon. |
8.DC.15 | Arthurite | CuFe3+2(AsO4)2(OH)2 · 4H2O | Mon. |
8.DC.15 | Earlshannonite | Mn2+Fe3+2(PO4)2(OH)2 · 4H2O | Mon. |
8.DC.15 | Ojuelaite | ZnFe3+2(AsO4)2(OH)2 · 4H2O | Mon. |
8.DC.15 | Whitmoreite | Fe2+Fe3+2(PO4)2(OH)2 · 4H2O | Mon. 2/m : P21/b |
8.DC.15 | Cobaltarthurite | (Co,Mg)Fe3+2(AsO4)2(OH)2 · 4H2O | Mon. 2/m : P21/b |
8.DC.15 | Bendadaite | Fe2+Fe3+2(AsO4)2(OH)2 · 4H2O | Mon. 2/m : P21/b |
8.DC.15 | Kunatite | CuFe3+2(PO4)2(OH)2 · 4H2O | Mon. 2/m : P21/b |
8.DC.15 | UM2006-27-PO:FeHZn | ZnFe3+2(PO4)2(OH)2 · 4H2O | Mon. |
8.DC.15 | UKI-2006-(PO:AlCuFeH) | Fe2+Al3+2(PO4)2(OH)2 · 4H2O | |
8.DC.17 | Kleemanite | ZnAl2(PO4)2(OH)2 · 3H2O | Mon. |
8.DC.20 | Bermanite | Mn2+Mn3+2(PO4)2(OH)2 · 4H2O | Mon. 2/m : P2/b |
8.DC.20 | Coralloite | Mn2+Mn3+2(AsO4)2(OH)2 · 4H2O | Tric. 1 : P1 |
8.DC.22 | Kovdorskite | Mg2(PO4)(OH) · 3H2O | Mon. |
8.DC.25 | Ferristrunzite | Fe3+Fe3+2(PO4)2(OH)3 · 5H2O | Tric. |
8.DC.25 | Ferrostrunzite | Fe2+Fe3+2(PO4)2(OH)2 · 6H2O | Tric. |
8.DC.25 | Metavauxite | Fe2+Al2(PO4)2(OH)2 · 8H2O | Mon. 2/m : P21/b |
8.DC.25 | Metavivianite | Fe2+Fe3+2(PO4)2(OH)2 · 6H2O | Tric. 1 : P1 |
8.DC.25 | Strunzite | Mn2+Fe3+2(PO4)2(OH)2 · 6H2O | Tric. 1 : P1 |
8.DC.27 | Beraunite | Fe2+Fe3+5(PO4)4(OH)5 · 6H2O | Mon. 2/m : B2/b |
8.DC.30 | Gordonite | MgAl2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
8.DC.30 | Laueite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
8.DC.30 | Mangangordonite | Mn2+Al2(PO4)2(OH)2 · 8H2O | Tric. |
8.DC.30 | Paravauxite | Fe2+Al2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
8.DC.30 | Sigloite | Fe3+Al2(PO4)2(OH)3 · 7H2O | Tric. |
8.DC.30 | Stewartite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
8.DC.30 | Ushkovite | MgFe3+2(PO4)2(OH)2 · 8H2O | Tric. |
8.DC.30 | Ferrolaueite | Fe2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
8.DC.30 | Kastningite | (Mn2+,Fe2+,Mg)Al2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
8.DC.30 | Maghrebite | MgAl2(AsO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
8.DC.30 | Nordgauite | MnAl2(PO4)2(F,OH)2 · 5H2O | Tric. 1 : P1 |
8.DC.32 | Tinticite | Fe3+3(PO4)2(OH)3 · 3H2O | Tric. 1 : P1 |
8.DC.35 | Vauxite | Fe2+Al2(PO4)2(OH)2 · 6H2O | Tric. 1 : P1 |
8.DC.37 | Vantasselite | Al4(PO4)3(OH)3 · 9H2O | Orth. |
8.DC.40 | Cacoxenite | Fe3+24AlO6(PO4)17(OH)12 · 75H2O | Hex. 6/m : P63/m |
8.DC.45 | Gormanite | (Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O | Tric. |
8.DC.45 | Souzalite | (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O | Tric. |
8.DC.47 | Kingite | Al3(PO4)2F2(OH) · 7H2O | Tric. |
8.DC.50 | Wavellite | Al3(PO4)2(OH,F)3 · 5H2O | Orth. mmm (2/m 2/m 2/m) |
8.DC.50 | Allanpringite | Fe3+3(PO4)2(OH)3 · 5H2O | Mon. 2/m : P21/m |
8.DC.52 | Kribergite | Al5(PO4)3(SO4)(OH)4 · 4H2O | Tric. 1 : P1 |
8.DC.55 | Mapimite | Zn2Fe3+3(AsO4)3(OH)4 · 10H2O | Mon. |
8.DC.57 | Ogdensburgite | Ca2Fe3+4(Zn,Mn2+)(AsO4)4(OH)6 · 6H2O | Orth. mmm (2/m 2/m 2/m) : Cmmm |
8.DC.60 | Nevadaite | (Cu2+,Al,V3+)6Al8(PO4)8F8(OH)2 · 22H2O | Orth. mmm (2/m 2/m 2/m) |
8.DC.60 | Cloncurryite | Cu0.5(VO)0.5Al2(PO4)2F2 · 5H2O | Mon. 2/m : P21/b |
Related Minerals - Dana Grouping (8th Ed.)
42.11.10.1 | Laueite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
42.11.10.2 | Stewartite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
42.11.10.4 | Ushkovite | MgFe3+2(PO4)2(OH)2 · 8H2O | Tric. |
42.11.10.7 | Ferrolaueite | Fe2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
Related Minerals - Hey's Chemical Index of Minerals Grouping
19.12.1 | Metaswitzerite | Mn2+3(PO4)2 · 4H2O | Mon. 2/m : P2/b |
19.12.2 | Bermanite | Mn2+Mn3+2(PO4)2(OH)2 · 4H2O | Mon. 2/m : P2/b |
19.12.3 | Natrophilite | NaMn2+PO4 | Orth. mmm (2/m 2/m 2/m) : Pmna |
19.12.4 | Sidorenkite | Na3Mn2+(CO3)(PO4) | Mon. |
19.12.5 | Niahite | (NH4)(Mn2+,Mg)(PO4) · H2O | Orth. mm2 : Pmn21 |
19.12.6 | Robertsite | Ca2Mn3+3(PO4)3O2 · 3H2O | Mon. m : Bb |
19.12.7 | Pararobertsite | Ca2Mn3+3(PO4)3O2 · 3H2O | Mon. 2/m : P21/b |
19.12.8 | Sinkankasite | Mn2+Al(PO3OH)2(OH) · 6H2O | Tric. |
19.12.9 | Mangangordonite | Mn2+Al2(PO4)2(OH)2 · 8H2O | Tric. |
19.12.10 | Heterosite | (Fe3+,Mn3+)PO4 | Orth. mmm (2/m 2/m 2/m) : Pmna |
19.12.11 | Purpurite | Mn3+(PO4) | Orth. mmm (2/m 2/m 2/m) : Pmna |
19.12.12 | Wolfeite | Fe2+2(PO4)(OH) | Mon. 2/m : P21/b |
19.12.13 | Triploidite | Mn2+2(PO4)(OH) | Mon. 2/m : P2/b |
19.12.14 | Lipscombite | Fe2+Fe3+2(PO4)2(OH)2 | Tet. |
19.12.15 | Frondelite | Mn2+Fe3+4(PO4)3(OH)5 | Orth. 2 2 2 : C2 2 21 |
19.12.16 | Rockbridgeite | Fe2+Fe3+4(PO4)3(OH)5 | Orth. mmm (2/m 2/m 2/m) |
19.12.17 | Kryzhanovskite | (Fe3+,Mn2+)3(PO4)2(OH,H2O)3 | Orth. |
19.12.18 | Landesite | Mn2+3-xFe3+x(PO4)2(OH)x · (3-x)H2O | Orth. |
19.12.19 | Phosphoferrite | (Fe2+,Mn2+)3(PO4)2 · 3H2O | Orth. mmm (2/m 2/m 2/m) : Pmna |
19.12.20 | Reddingite | (Mn2+,Fe2+)3(PO4)2 · 3H2O | Orth. mmm (2/m 2/m 2/m) : Pmna |
19.12.21 | Earlshannonite | Mn2+Fe3+2(PO4)2(OH)2 · 4H2O | Mon. |
19.12.22 | Hureaulite | Mn2+5(PO3OH)2(PO4)2 · 4H2O | Mon. 2/m : B2/b |
19.12.23 | Switzerite | Mn2+3(PO4)2 · 7H2O | Mon. |
19.12.24 | Laueite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
19.12.26 | Strunzite | Mn2+Fe3+2(PO4)2(OH)2 · 6H2O | Tric. 1 : P1 |
19.12.27 | Stewartite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : P1 |
19.12.28 | Alluaudite | (Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3 | Mon. |
19.12.29 | Ferroalluaudite | (Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3 | Mon. 2/m : B2/b |
19.12.30 | Fillowite | Na3CaMn2+11(PO4)9 | Trig. 3 : R3 |
19.12.31 | Johnsomervilleite | Na3CaFe11(PO4)9 | Trig. |
19.12.32 | Wicksite | NaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2O | Orth. mmm (2/m 2/m 2/m) |
19.12.33 | Dickinsonite-(KMnNa) | (KNa)(Mn2+◻)Ca(Na2Na)Mn2+13Al(PO4)11(PO4)(OH)2 | Mon. 2/m : B2/b |
19.12.34 | Sarcopside | (Fe2+,Mn2+,Mg)3(PO4)2 | Mon. 2/m : P21/b |
19.12.35 | Ludlamite | Fe2+3(PO4)2 · 4H2O | Mon. 2/m : P21/b |
19.12.36 | Graftonite | Fe2+Fe2+2(PO4)2 | Mon. 2/m : P21/b |
19.12.37 | Wilhelmvierlingite | CaMnFe3+(PO4)2(OH) · 2H2O | Orth. |
19.12.38 | Fairfieldite | Ca2Mn2+(PO4)2 · 2H2O | Tric. 1 : P1 |
19.12.39 | Beusite | Mn2+Mn2+2 (PO4)2 | Mon. |
19.12.40 | Messelite | Ca2Fe2+(PO4)2 · 2H2O | Tric. 1 : P1 |
19.12.41 | Jahnsite-(CaMnFe) | {Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
19.12.42 | Jahnsite-(CaMnMn) | {Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
19.12.43 | Jahnsite-(CaMnMg) | {Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
19.12.44 | Keckite | CaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2O | Mon. 2/m : P2/b |
19.12.45 | Stanfieldite | Ca4Mg5(PO4)6 | Mon. |
19.12.46 | Laubmannite | ||
19.12.47 | Zodacite | Ca4Mn2+Fe3+4(PO4)6(OH)4 · 12H2O | Mon. |
19.12.48 | Hagendorfite | NaCaMn2+Fe2+2(PO4)3 | Mon. 2/m : B2/b |
19.12.49 | Maghagendorfite | (Na,◻)MgMn2+(Fe2+,Fe3+)2(PO4)3 | Mon. |
19.12.50 | Varulite | NaCaMn2+Mn2+2(PO4)3 | Mon. 2/m : B2/b |
19.12.51 | Griphite | Na4Li2Ca6(Mn2+,Fe2+,Mg)19Al8(PO4)24(F,OH)8 | Iso. m3 (2/m 3) : Pa3 |
19.12.52 | Attakolite | CaMn2+Al4(SiO3OH)(PO4)3(OH)4 | Mon. 2/m : B2/m |
19.12.53 | Arrojadite-(KFe) | (KNa)(Fe2+◻)Ca(Na2◻)Fe2+13Al(PO4)11(PO3OH)(OH)2 | Mon. |
19.12.54 | Lun'okite | (Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2O | Orth. mmm (2/m 2/m 2/m) : Pbca |
19.12.55 | Eosphorite | Mn2+Al(PO4)(OH)2 · H2O | Orth. mmm (2/m 2/m 2/m) : Cmca |
19.12.56 | Ernstite | (Mn2+,Fe3+)Al(PO4)(OH,O)2 · H2O | Mon. |
19.12.57 | Childrenite | Fe2+Al(PO4)(OH)2 · H2O | Orth. mm2 : Ccc2 |
19.12.58 | Bobfergusonite | Na2Mn5FeAl(PO4)6 | Mon. 2/m : P2/b |
19.12.59 | Qingheiite | NaMn3+Mg(Al,Fe3+)(PO4)3 | Mon. 2/m : P21/b |
19.12.60 | Whiteite-(CaFeMg) | {Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P21/b |
19.12.61 | Whiteite-(CaMnMg) | {Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O | Mon. 2/m |
19.12.62 | Whiteite-(MnFeMg) | {(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P21/b |
19.12.63 | Rittmannite | {(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O | Mon. |
19.12.64 | Zanazziite | Ca2Mg5Be4(PO4)6(OH)4 · 6H2O | Mon. 2/m : B2/b |
19.12.65 | Samuelsonite | (Ca,Ba)Ca8Fe2+2Mn2+2Al2(PO4)10(OH)2 | Mon. 2/m : B2/m |
Fluorescence of Pseudolaueite
Not fluorescent in UV
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 Pseudolaueite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1956): 41: 815.
American Mineralogist (1969): 54: 1312-1323.
Moore, P.B. (1975): Laueite, pseudolaueite, stewartite and metavauxite; a study in combinatorial polymorphism. Neues Jahrbuch für Mineralogie, Abhandlungen, 123, 148-159.
Aufschluss (2000): 51: 39-45.
Internet Links for Pseudolaueite
mindat.org URL:
https://www.mindat.org/min-3297.html
Please feel free to link to this page.
Please feel free to link to this page.
External Links:
Mineral Dealers:
Localities for Pseudolaueite
Locality List




All localities listed without proper references should be considered as questionable.
Germany (TL) | |
| Naturwissenschaften,(1956) 43, 128; http://www.berthold-weber.de/h_miner.htm |
Dill, H. G., Weber, B., Gerdes, A., & Melcher, F. (2008). The Fe-Mn phosphate apliteSilbergrube'near Waidhaus, Germany: epithermal phosphate mineralization in the Hagendorf-Pleystein pegmatite province. Mineralogical Magazine, 72(5), 1119-1144. | |
| Pöllmann, H., Bäumler, W., Meier, S. (2005): Sekundärphosphate aus dem Steinwaldgranit von Hopfau bei Erbendorf/Oberpfalz. Der Aufschluss 56 (2), 71-79 |
New Zealand | |
| Stott, F. (pers. notes) Minerals Associated with Phosphate Nodules, Tadmer Dry Weather Road Locality/Micromounting Seminar-Nelson. Both collector articles downloaded to Otago Rock and Minerals Club website (Phosphate nodules were studied by the club, however it is uncertain the level of scientific investigation) |
Portugal | |
| Schnorrer-Köhler (1991), Mineral Occurrences. |
| Rewitzer, C. and Röschl, N. (1984) Portugal. Lapis, 9(12).; van den Berg, W. (1992) Enkele vermaarde mineralenvindplaatsen in Midden-Portugal. Gea, 1992(1), 38-39 (in Dutch). |
USA | |
| Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 312. |
| Falster, A. U., Simmons, W. B., Webber, K. L., Dallaire, D. A., Nizamoff, J. W., & Sprague, R. A. (2019). The Emmons Pegmatite, Greenwood, Oxford County, Maine. Rocks & Minerals, 94(6), 498-519. |
| King, V. and Foord, E., 1994, 2000, Mineralogy of Maine, volume 1 and 2, with updates by Van King. |
| Moore, P.B. (1965) Hühnerkobelite crystals from the Palermo No. 1 Pegmatite, North Groton, New Hampshire. American Mineralogist: 50(5-6): 713-717. |
Rocks & Min., May 1999. | |
| Jason B. Smith (visual identification) |
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Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany