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Robertsite

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Willard "Bill" Lincoln Roberts
Formula:
Ca2Mn3+3(PO4)3O2 · 3H2O
Colour:
Red, red-brown, deep red, bronzy brown, black
Lustre:
Waxy, Greasy, Pearly
Hardness:
Specific Gravity:
3.13
Crystal System:
Monoclinic
Name:
Named in 1974 by Paul Brian Moore and Jun Ito in honor of Willard "Bill" Lincoln Roberts [February 12, 1923 Epworth, Iowa, USA - March 23, 1987 Rapid City, South Dakota, USA], professor of mineralogy and curator of the South Dakota School of Mines mineral museum. Bill was strongly influenced by the phosphate mineral bearing granite pegmatites of the nearby Black Hill and collaborated with many mineralogists, including Mary Mrose, Paul Moore, and Jun Ito and through this collaboration about 15-20 phosphates minerals were described by various authors. Bill was senior author of both the Mineralogy of the Black Hills and the Encyclopedia of Minerals (first edition).
Dimorph of:
Isostructural with:
Brown to dark brown coatings, usually fine-grained, but sometimes crystallized with densely packed pseudohexagonal platy, columnar, or fibrous crystals.


Hide all sections | Show all sections

Classification of RobertsiteHide

Approved
Approval Year:
1973
8.DH.30

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1
42.8.4.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : (AB)5(XO4)3Zq·xH2O
19.12.6

19 : Phosphates
12 : Phosphates of Mn

Physical Properties of RobertsiteHide

Waxy, Greasy, Pearly
Transparency:
Translucent
Comment:
Bright relections on basal sections
Colour:
Red, red-brown, deep red, bronzy brown, black
Streak:
Red-brown
Hardness:
3½ on Mohs scale
Tenacity:
Waxy
Cleavage:
Very Good
{100}
Fracture:
Micaceous
Density:
3.13 g/cm3 (Measured)    3.05 g/cm3 (Calculated)

Optical Data of RobertsiteHide

Type:
Biaxial (-)
RI values:
nα = 1.775 nβ = 1.820 nγ = 1.820
2V:
Measured: 8°
Birefringence:
0.045
Max Birefringence:
δ = 0.045
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
relatively weak
Optical Extinction:
X ~ ⊥ {100}
Pleochroism:
Strong
Comments:
X pale red to pink Y,Z deep red brown

Chemical Properties of RobertsiteHide

Formula:
Ca2Mn3+3(PO4)3O2 · 3H2O
IMA Formula:
Ca2Mn3+3O2(PO4)3 · 3H2O

Crystallography of RobertsiteHide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Bb
Setting:
Bb
Cell Parameters:
a = 17.3400(9) Å, b = 19.4464(10) Å, c = 11.2787(6) Å
β = 96.634(3)°
Ratio:
a:b:c = 0.892 : 1 : 0.58
Unit Cell V:
3777.7 ų
Z:
12
Morphology:
Frequently earthy in coatings. Not rarely scaly or in densely packed crystals in subparallel groupings. Crystals frequently show corrugations and deep striations or notches.
Twinning:
Multiple rotation twins (π/3) perpendicular to {100}
Comment:
A non-standard cell chosen, cfr Andrade et al. (2012)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.63 (100)
5.61 (50)
3.27 (40)
2.88 (30)
2.75 (60)
2.59 (40)
2.16 (30)
1.623 (50)
Comments:
26-1067

Type Occurrence of RobertsiteHide

Geological Setting of Type Material:
Late stage mineralization in granite pegmatites.
Associated Minerals at Type Locality:

Synonyms of RobertsiteHide

Other Language Names for RobertsiteHide

German:Robertsit
Spanish:Robertsita

Relationship of Robertsite to other SpeciesHide

Other Members of this group:
ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2OMon. 2/m : B2/b
KolfaniteCa2Fe3+3O2(AsO4)3 · 2H2OMon.
MitridatiteCa2Fe3+3(PO4)3O2 · 3H2OMon. 2/m : B2/b
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
Montgomeryite13 photos of Robertsite associated with Montgomeryite on mindat.org.
Collinsite13 photos of Robertsite associated with Collinsite on mindat.org.
Whitlockite11 photos of Robertsite associated with Whitlockite on mindat.org.
Rockbridgeite10 photos of Robertsite associated with Rockbridgeite on mindat.org.
Leucophosphite9 photos of Robertsite associated with Leucophosphite on mindat.org.
Hureaulite7 photos of Robertsite associated with Hureaulite on mindat.org.
Phosphosiderite5 photos of Robertsite associated with Phosphosiderite on mindat.org.
Tinsleyite5 photos of Robertsite associated with Tinsleyite on mindat.org.
Mitridatite4 photos of Robertsite associated with Mitridatite on mindat.org.
Albite3 photos of Robertsite associated with Albite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.DH.05MinyuliteKAl2(PO4)2(OH,F) · 4H2OOrth. mm2 : Pba2
8.DH.10LeucophosphiteKFe3+2(PO4)2(OH) · 2H2OMon. 2/m : P21/b
8.DH.10Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2OMon.
8.DH.10TinsleyiteKAl2(PO4)2(OH) · 2H2OMon.
8.DH.15Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15KeckiteCaMn2+Fe3+2Fe3+2(PO4)4(OH)3(H2O)7Mon. 2/m : P2/b
8.DH.15Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m
8.DH.15Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Jahnsite-(MnMnMn){Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Kaluginite(Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2OOrth.
8.DH.15Jahnsite-(CaFeFe){Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Jahnsite-(NaFeMg)NaFe3+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(NaMnMg){Na}{Mn3+}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMgMg){Ca}{Mg}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O
8.DH.20Manganosegelerite(Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20OveriteCaMgAl(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20SegeleriteCa2 Mg2 Fe3+2(PO4)4(OH)2 · 8H2OOrth. mmm (2/m 2/m 2/m) : Pcca
8.DH.20WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2OOrth.
8.DH.20JuonniiteCaMgSc(PO4)2(OH) · 4H2OOrth.
8.DH.25CalcioferriteCa2Fe3+2(PO4)3(OH) · 7H2OMon. 2/m : B2/b
8.DH.25KingsmountiteCa4(Fe2+,Mn2+)Al4(PO4)6(OH)4 · 12H2OMon. 2 : B2
8.DH.25MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2OMon. 2 : B2
8.DH.25ZodaciteCa4Mn2+Fe3+4(PO4)6(OH)4 · 12H2OMon.
8.DH.30ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2OMon. 2/m : B2/b
8.DH.30KolfaniteCa2Fe3+3O2(AsO4)3 · 2H2OMon.
8.DH.30MitridatiteCa2Fe3+3(PO4)3O2 · 3H2OMon. 2/m : B2/b
8.DH.30PararobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. 2/m : P21/b
8.DH.30Sailaufite(Ca,Na,☐)2Mn3+3(AsO4)2(CO3)O2 · 3H2OMon.
8.DH.35MantienneiteKMg2Al2Ti(PO4)4(OH)3 · 15H2OOrth.
8.DH.35PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.35Benyacarite(H2O,K)2(Mn2+,Fe2+)2(Fe3+,Ti)2Ti(PO4)4(O,F)2 · 14H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.40XanthoxeniteCa4Fe3+2(PO4)4(OH)2 · 3H2OTric. 1 : P1
8.DH.45MahnertiteNaCu3(AsO4)2Cl · 5H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
8.DH.50AndyrobertsiteKCdCu5(AsO4)4(H2AsO4) · 2H2OMon.
8.DH.50CalcioandyrobertsiteKCaCu5(AsO4)4(H2AsO4) · 2H2OMon. 2/m : P21/m
8.DH.55EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2OMon. 2/m
8.DH.60BouazzeriteBi6(Mg,Co)11Fe3+14(AsO4)18(OH)4O12 · 86H2OMon. 2/m

Related Minerals - Dana Grouping (8th Ed.)Hide

42.8.4.1MitridatiteCa2Fe3+3(PO4)3O2 · 3H2OMon. 2/m : B2/b
42.8.4.3ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2OMon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.12.1MetaswitzeriteMn3(PO4)2 · 4H2OMon. 2/m : P2/b
19.12.2BermaniteMn2+Mn3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P2/b
19.12.3NatrophiliteNaMn2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
19.12.4SidorenkiteNa3Mn2+(CO3)(PO4)Mon.
19.12.5Niahite(NH4)(Mn2+,Mg)(PO4) · H2OOrth. mm2 : Pmn21
19.12.7PararobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. 2/m : P21/b
19.12.8SinkankasiteMn2+Al(PO3OH)2(OH) · 6H2OTric.
19.12.9MangangordoniteMn2+Al2(PO4)2(OH)2 · 8H2OTric.
19.12.10Heterosite(Fe3+,Mn3+)PO4Orth. mmm (2/m 2/m 2/m) : Pmna
19.12.11Purpurite(Mn3+,Fe3+)PO4Orth. mmm (2/m 2/m 2/m) : Pmna
19.12.12Wolfeite(Fe2+,Mn2+)2(PO4)(OH)Mon. 2/m : P21/b
19.12.13Triploidite(Mn2+,Fe2+)2(PO4)(OH)Mon. 2/m : P2/b
19.12.14LipscombiteFe2+Fe3+2(PO4)2(OH)2Tet.
19.12.15FrondeliteMn2+Fe3+4(PO4)3(OH)5Orth. 2 2 2 : C2 2 21
19.12.16RockbridgeiteFe2+Fe3+4(PO4)3(OH)5Orth. mmm (2/m 2/m 2/m)
19.12.17Kryzhanovskite(Fe3+,Mn2+)3(PO4)2(OH,H2O)3Orth.
19.12.18LandesiteMn2+3-xFe3+x(PO4)2(OH)x · (3-x)H2OOrth.
19.12.19Phosphoferrite(Fe2+,Mn2+)3(PO4)2 · 3H2OOrth. mmm (2/m 2/m 2/m) : Pmna
19.12.20Reddingite(Mn2+,Fe2+)3(PO4)2 · 3H2OOrth. mmm (2/m 2/m 2/m) : Pmna
19.12.21EarlshannoniteMn2+Fe3+2(PO4)2(OH)2 · 4H2OMon.
19.12.22Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2OMon. 2/m : B2/b
19.12.23Switzerite(Mn,Fe)3(PO4)2 · 7H2OMon.
19.12.24LaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
19.12.25PseudolaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OMon. 2/m : P21/b
19.12.26StrunziteMn2+Fe3+2(PO4)2(OH)2 · 6H2OTric. 1 : P1
19.12.27StewartiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
19.12.28Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3Mon.
19.12.29Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3
19.12.30Fillowite{Mn2+}{Na8}{Ca4Na4}{(Mn2+,Fe2+)43}(PO4)36Trig. 3 : R3
19.12.31JohnsomervilleiteNa10Ca6Mg18Fe25(PO4)36Trig.
19.12.32WicksiteNaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2OOrth. mmm (2/m 2/m 2/m)
19.12.33Dickinsonite-(KMnNa){KNa}{Mn2+◻}{Ca}{Na3}{Mn2+13}{Al}(PO4)12(OH)2Mon. 2/m : B2/b
19.12.34Sarcopside(Fe2+,Mn2+,Mg)3(PO4)2Mon. 2/m : P21/b
19.12.35Ludlamite(Fe,Mn,Mg)3(PO4)2 · 4H2OMon. 2/m : P21/b
19.12.36GraftoniteFe2+Fe2+2(PO4)2Mon. 2/m : P21/b
19.12.37WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2OOrth.
19.12.38FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2OTric. 1 : P1
19.12.39BeusiteMn2+Mn2+2 (PO4)2Mon.
19.12.40MesseliteCa2(Fe2+,Mn2+)(PO4)2 · 2H2OTric. 1 : P1
19.12.41Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
19.12.42Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
19.12.43Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
19.12.44KeckiteCaMn2+Fe3+2Fe3+2(PO4)4(OH)3(H2O)7Mon. 2/m : P2/b
19.12.45StanfielditeCa4Mg5(PO4)6Mon.
19.12.46Laubmannite(Fe2+,Mn2+,Ca)3Fe3+6(PO4)4(OH)12
19.12.47ZodaciteCa4Mn2+Fe3+4(PO4)6(OH)4 · 12H2OMon.
19.12.48HagendorfiteNaCaMn2+Fe2+2(PO4)3Mon. 2/m : B2/b
19.12.49Maghagendorfite(□,Na,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3Mon.
19.12.50VaruliteNaCaMn2+Mn2+2(PO4)3Mon. 2/m : B2/b
19.12.51GriphiteNa4Li2Ca6(Mn2+,Fe2+,Mg)19Al8(PO4)24(F,OH)8Iso. m3 (2/m 3)
19.12.52Attakolite(Ca,Sr)Mn(Al,Fe)4(HPO4,PO4)3(SiO4,PO4)(OH)4Mon. 2/m : B2/m
19.12.53Arrojadite-(KFe){KNa}{Fe2+◻}{Ca}{Na2◻}{Fe2+13}{Al}(PO4)11(HPO4)(OH)2Mon.
19.12.54Lun'okite(Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
19.12.55EosphoriteMn2+Al(PO4)(OH)2 · H2OOrth. mmm (2/m 2/m 2/m) : Cmca
19.12.56Ernstite(Mn2+,Fe3+)Al(PO4)(OH,O)2 · H2OMon.
19.12.57ChildreniteFe2+Al(PO4)(OH)2 · H2OOrth. mm2 : Ccc2
19.12.58BobfergusoniteNa2Mn5FeAl(PO4)6Mon. 2/m : P2/b
19.12.59QingheiiteNaMn3+Mg(Al,Fe3+)(PO4)3Mon. 2/m : P21/b
19.12.60Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
19.12.61Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m
19.12.62Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
19.12.63Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2OMon.
19.12.64ZanazziiteCa2Mg5Be4(PO4)6(OH)4 · 6H2OMon. 2/m : B2/b
19.12.65Samuelsonite(Ca,Ba)Ca8Fe2+2Mn2+2Al2(PO4)10(OH)2Mon. 2/m : B2/m

Fluorescence of RobertsiteHide

nonfluorescent

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 RobertsiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Moore, Paul B. and Ito, Jun (1974), Jahnsite, segelerite, and robertsite, three new transition metal phosphates species: American Mineralogist: 59: 48-60.
Mineralogical Magazine: 52: 505-508.
M. B. Andrade, S. M. Morrison, A. J. Di Domizio, M. N. Feinglos and R. T. Downs (2012): Robertsite, Ca3Mn3+4(PO4)3O2 · 3H2O. Acta Crystallographica E68, i74-i75.

Internet Links for RobertsiteHide

Localities for RobertsiteHide

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.
Australia
 
  • South Australia
    • Eyre Peninsula
      • Middleback Range
        • Iron Knob
Minerals of Iron Monarch, Glyn L. Francis
    • Mt Lofty Ranges
      • North Mt Lofty Ranges
        • Kapunda
Francis, G.L., Peisley, V., 2012. Minerals from Tom's phosphate deposit, Kapunda, South Australia. (self published).
  • Western Australia
    • Port Hedland Shire
      • Abydos Station
        • Wodgina
Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007) Guidebook to the Pegmatites of Western Australia.
Brazil
 
  • Minas Gerais
    • Conselheiro Pena
Sergio Varvello collection
Sergio Varvello collection
Baijot, M., Hatert, F., Dal Rio, F. & Philipo, S. (2014) Mineralogy and petrography of phosphate mineral association from the Jocão pegmatite, Minas Gerais, Brazil. Canadian Mineralogist 52, 373-397.
    • Galiléia
      • Sapucaia do Norte
Roberto Bosi collection
  • Paraíba
    • Borborema mineral province
      • Picuí
Sergio Varvello collection
Ethiopia
 
  • Southern Nations Nationalities and Peoples' Region
    • Lower Omo Valley
American Mineralogist, Vol. 64, 1979, pp. 169-171.
France
 
  • Auvergne-Rhône-Alpes
    • Allier
      • Ébreuil
        • Échassières
J.M. Boisson et al. : "Filon Sainte Barbe, Commune d'Echassières, Allier, France", Le Cahier des Micromonteurs, 2000, 4, 3-46
  • Occitanie
    • Pyrénées-Orientales
Berbain,C., Riley, T., Favreau, G., (2012): Phosphates des pegmatites du massif des Albères (Pyrénées-Orientales). Le Cahier des Micromonteurs. 117, 121-172
        • Collioure (Cotlliure)
BERBAIN. C, RILEY. T, FAVREAU. G, (2012) Phosphates des pegmatites du massif des Albères. Ed Association Française de Microminéralogie
Germany
 
  • Bavaria
    • Lower Bavaria
      • Zwiesel
        • Rabenstein
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Upper Palatinate
      • Waidhaus
        • Hagendorf
Mineralogical Magazine 1988 52 : 505-508; 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.
  • North Rhine-Westphalia
    • Sauerland
      • Iserlohn
        • Letmathe
Bender/Marl, D. & Krimmelbein/Altena, W. (1994) Aktuelle Übersicht: Mineralien der Zinkhütte Genna/Sauerland. Stand Juni 1994. Mineralien-Welt, 4/94, 10.
Italy
 
  • Sardinia
    • Carbonia-Iglesias Province
      • Carbonia
        • Barbusi
Sauro, F., De Waele, J., Onac, B. P., Galli, E., Dublyansky, Y., Baldoni, E., & Sanna, L. (2014). Hypogenic speleogenesis in quartzite: the case of Corona'e Sa Craba Cave (SW Sardinia, Italy). Geomorphology, 211, 77-88.
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Tazenakht
Favreau, G. (2012): Les minéralisations à phosphates de la pegmatite d'Angarf-Sud (Maroc).Le Cahier des Micromonteurs, 3-2012, 3-70.
  • Marrakech-Safi Region
    • Rehamna Province
      • Jebilet Mtn (Djebilet Mtn)
        • Sidi Bou Othmane
Favreau, G. (2012): Deux pegmatites à phosphates de Sidi Bou Othmane (Maroc). Le Cahier des Micromonteurs, 3-2012, 71-109
Namibia
 
  • Erongo Region
    • Karibib District
      • Okongava Ost Farm 72
- Bezing, L. von, Bode, R. & Jahn, S. (2007): Namibia. Mineralien und Fundstellen. Edition Schloss Freudenstein, Bode Verlag, Haltern, 411 pp. (in English)
      • Usakos
Von Bezing, L., Bode, R., and Jahn, S., (2008) Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern. 409 (in English).
Keller, P. (1974): Phosphatmineralien aus Pegmatiten Sudwestafrikas, Der Aufschluss 25,577-591(1974)
  • Karas Region
    • Berseba District
Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern, 603 pp. (in English)
    • Karasburg District
Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern, 384 pp. (in English)
Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern, 384 pp. (in English)
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Dzierżoniów District
      • Piława Górna (Ober Peilau; Gnadenfrei)
        • DSS Piława Górna Quarry
Pieczka, A., Włodek, A., Gołębiowska, B., Szełęg, E., Szuszkiewicz, A., Ilnicki, S., Nejbert, K., Turniak, K. (2015): Phosphate-bearing pegmatites in the Góry Sowie Block and adjacent areas, Sudetes, SW Poland. 7th International Symposium on Granitic Pegmatites, PEG 2015 Książ, Poland. Abstracts: 77-78
    • Ząbkowice District
      • Ząbkowice (Frankenstein)
        • Szklary (Gläsendorf)
Pieczka, A., Włodek, A., Gołębiowska, B., Szełęg, E., Szuszkiewicz, A., Ilnicki, S., Nejbert, K., Turniak, K. (2015): Phosphate-bearing pegmatites in the Góry Sowie Block and adjacent areas, Sudetes, SW Poland. 7th International Symposium on Granitic Pegmatites, PEG 2015 Książ, Poland. Abstracts: 77-78
Portugal
 
  • Guarda District
    • Gouveia
      • Folgosinho
Martins da Pedra collection
  • Viana do Castelo District
    • Caminha
      • Arga de Baixo
self-find. Pedro Alves collection
    • Ponte da Barca
      • São Lourenço de Touvedo
Self-find by Nuno Afonso; optical and XRD analysed
  • Viseu District
    • Mangualde
Romania
 
  • Maramureș Co.
    • Baia Mare (Nagybánya)
Mineralogical Record 7:139-140
Spain
 
  • Castile and Leon
    • Zamora
      • Villar del Buey
        • Pinilla de Fermoselle
Thailand
 
  • Lamphun Province
Mineralogical Magazine 1988 52 : 505-508
USA
 
  • Arizona
    • Yavapai Co.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 355; Jahns, Richard H. (1952), Pegmatite Deposits of the White Picacho District, Maricopa and Yavapai Counties, Arizona, Arizona Bureau of Mines Bull. 162.
        • Independence Gulch
London, D. and Burt, D., 1982, Alteration of spodumene, Montebrasite and Lithiophilite in Pegmatites of the White Picacho District, Arizona, American Mineralogist, v 67, p. 97-113
  • California
    • San Diego Co.
      • Jacumba District
        • Jacumba
          • Tule Mountain (Mount Tule; Tulley Mountain)
Mineralogical Record 33(5):363-407
  • Maine
    • Oxford Co.
      • Greenwood
        • Uncle Tom Mountain
No reference listed
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
  • South Dakota
    • Custer Co.
      • Custer District
        • Custer
Mineralogical Magazine 1988 52 : 505-508
        • Fourmile
Moore, P. B. (1974) American Mineralogist: 59: 48-60.
        • Pringle
          • Cicero Peak
Mineralogical Magazine 1988 52 : 505-508
    • Pennington Co.
      • Keystone District
        • Glendale
Rocks & Minerals: 75(3): 156-169.
Mineral and/or Locality  
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