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Phosphophyllite

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Unificada Mine, Cerro de Potosí (Cerro Rico), Potosí City, Potosí Department, Bolivia

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Formula:
Zn
 
2
Fe(PO
 
4
)
 
2
 · 4H
 
2
O
System:MonoclinicColour:Bright blue-green to ...
Lustre:Vitreous, Sub-Vitreous, Resinous, WaxyHardness:3 - 3½
Name:Named in 1920 by Heinrich Laubmann and Hermann Steinmetz in allusion to its composition, a phosphate, and its physical structure, from the Greek φύλλον (phyllos) for leaf, referring to its perfect cleavage.


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Classification of Phosphophyllite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/C.11-10
Nickel-Strunz 10th (pending) edition ID:8.CA.40

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
A : With small and large/medium cations
Dana 8th edition ID:40.2.7.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2 : AB2(XO4)2·xH2O
Hey's CIM Ref.:19.6.14

19 : Phosphates
6 : Phosphates of Zn
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Type Occurrence of Phosphophyllite

Type Locality:Hagendorf North Pegmatite (Meixner Feldspar Pit), Hagendorf, Waidhaus, Vohenstrauß, Oberpfälzer Wald, Upper Palatinate, Bavaria, Germany
Year of Discovery:1920
Geological Setting of type material:Granite Pegmatite
Associated Minerals at type locality:
VivianiteTripliteTriphyliteStrengiteSphalerite
RockbridgeitePhosphosideriteFairfielditeFluorapatite

Occurrences of Phosphophyllite

Geological Setting:A secondary mineral in zoned complex granitic pegmatites, an alteration product of sphalerite and Mn-Fe phosphates, hydrothermal vein deposits.

Physical Properties of Phosphophyllite

Lustre:Vitreous, Sub-Vitreous, Resinous, Waxy
Diaphaneity (Transparency):Transparent, Translucent
Colour:Bright blue-green to colourless; colourless in transmitted light.
Hardness (Mohs):3 - 3½
Tenacity:Brittle
Cleavage:Perfect
Perfect on {100}, distinct on {010} and {102}.
Density (measured):3.08 - 3.13 g/cm3
Density (calculated):3.12 g/cm3

Crystallography of Phosphophyllite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b {P1 1 21/b} {P21/c} {P1 21/c 1} {P21/a}
Space Group Setting:P21/c
Cell Parameters:a = 10.387(9) Å, b = 5.09(1) Å, c = 10.563(9) Å
β = 121.07(7)°
Ratio:a:b:c = 2.041 : 1 : 2.075
Unit Cell Volume:V 478.35 ų (Calculated from Unit Cell)
Z:2
Morphology:Thick tabular {100} to acutely terminated. X-twinning common.
Twinning:Common on {100} giving fishtail twins; may by polysynthetic. Rarely on {102}.
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data:
Data courtesy of RRUFF project at University of Arizona, used with permission.
X-Ray Powder Diffraction:
d-spacingIntensity
8.886 (80)
4.55 (20)
4.44 (100)
3.38 (60)
2.83 (50)
2.82 (40)
2.22 (30)
1.481 (30)
Comments:ICDD 29-1427; also 17-774.

Optical Data of Phosphophyllite

Type:Biaxial (-)
RI values: nα = 1.595 - 1.599 nβ = 1.614 - 1.617 nγ = 1.616 - 1.620
2V:Measured: 44° , Calculated: 34°
Birefringence:0.021
Maximum Birefringence:δ = 0.021

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v perceptible
Optical Extinction:Y ^ c = 50°
Pleochroism:Non-pleochroic

Chemical Properties of Phosphophyllite

Formula:
Zn
 
2
Fe(PO
 
4
)
 
2
 · 4H
 
2
O
Essential elements:Fe, H, O, P, Zn
All elements listed in formula:Fe, H, O, P, Zn
Analytical Data:Soluble in mineral acids
Common Impurities:Mn
Relationship of Phosphophyllite to other Species
Related Minerals - Nickel-Strunz Grouping):

- + 
8.CA.05Fransoletite
Ca
 
3
Be
 
2
(PO
 
4
)
 
2
(HPO
 
4
)
 
2
 · 4H
 
2
O
8.CA.05Parafransoletite
Ca
 
3
Be
 
2
(PO
 
4
)
 
2
(HPO
 
4
)
 
2
 · 4H
 
2
O
8.CA.10Ehrleite
Ca
 
4
Be
 
3
Zn
 
2
(PO
 
4
)
 
6
 · 9H
 
2
O
8.CA.15Faheyite
(Mn,Mg,Na)Be
 
2
Fe
 
2
(PO
 
4
)
 
4
 · 6H
 
2
O
8.CA.20Gainesite
Na(Na,K)(Be,Li)Zr
 
2
(PO
 
4
)
 
4
 · 1.5-2H
 
2
O
8.CA.20Mccrillisite
NaCs(Be,Li)Zr
 
2
(PO
 
4
)
 
4
 · 1-2H
 
2
O
8.CA.20Selwynite
NaK(Be,Al)Zr
 
2
(PO
 
4
)
 
4
 · 2H
 
2
O
8.CA.25Pahasapaite
Li
 
8
(Ca,Li,K)
 
10.5
Be
 
24
(PO
 
4
)
 
24
 · 38H
 
2
O
8.CA.30Hopeite
Zn
 
3
(PO
 
4
)
 
2
 · 4H
 
2
O
8.CA.30Arsenohopeite
Zn
 
3
(AsO
 
4
)
 
2
 · 4H
 
2
O
8.CA.35Warikahnite
Zn
 
3
(AsO
 
4
)
 
2
 · 2H
 
2
O
8.CA.45Parascholzite
CaZn
 
2
(PO
 
4
)
 
2
 · 2H
 
2
O
8.CA.45Scholzite
CaZn
 
2
(PO
 
4
)
 
2
 · 2H
 
2
O
8.CA.50Keyite
Cu
2+
3
Zn
 
4
Cd
 
2
(AsO
 
4
)
 
6
 · 2H
 
2
O
8.CA.55Pushcharovskite
K
 
0.6
Cu
 
18
(AsO
 
4
)(HAsO
 
4
)
 
10
(H
 
2
AsO
 
4
)
 
4
(OH)
 
9.6
·18.6H
 
2
O
8.CA.60Prosperite
CaZn
 
2
(AsO
 
4
)(HAsO
 
4
)(OH)
8.CA.65Gengenbachite
KFe
3+
3
(HPO
 
4
)
 
4
(H
 
2
PO
 
4
)
 
2
 · 6H
 
2
O
8.CA.70Parahopeite
Zn
 
3
(PO
 
4
)
 
2
 · 4H
 
2
O
Related Minerals - Hey's Index Grouping:

- + 
19.6.1Tarbuttite
Zn
 
2
(PO
 
4
)(OH)
19.6.2Spencerite
Zn
 
4
(PO
 
4
)
 
2
(OH)
 
2
 · 3H
 
2
O
19.6.3Hopeite
Zn
 
3
(PO
 
4
)
 
2
 · 4H
 
2
O
19.6.4Parahopeite
Zn
 
3
(PO
 
4
)
 
2
 · 4H
 
2
O
19.6.5Veszelyite
(Cu,Zn)
 
2
Zn(PO
 
4
)
 
2
 · 2H
 
2
O
19.6.6Kipushite
(Cu,Zn)
 
5
Zn(PO
 
4
)
 
2
(OH)
 
6
 · H
 
2
O
19.6.7Scholzite
CaZn
 
2
(PO
 
4
)
 
2
 · 2H
 
2
O
19.6.8Parascholzite
CaZn
 
2
(PO
 
4
)
 
2
 · 2H
 
2
O
19.6.9Ehrleite
Ca
 
4
Be
 
3
Zn
 
2
(PO
 
4
)
 
6
 · 9H
 
2
O
19.6.10Faustite
(Zn,Cu)Al
 
6
(PO
 
4
)
 
4
(OH)
 
8
 · 4H
 
2
O
19.6.11Aheylite
(Fe
2+
 
,Zn)Al
 
6
(PO
 
4
)
 
4
(OH)
 
8
 · 4H
 
2
O
19.6.12Jungite
Ca
 
2
Zn
 
4
Fe
3+
8
(PO
 
4
)
 
9
(OH)
 
9
 · 16H
 
2
O
19.6.13Schoonerite
ZnMn
2+
 
Fe
2+
2
Fe
3+
 
(PO
 
4
)
 
3
(OH)
 
2
 · 9H
 
2
O
Other Names for Phosphophyllite
Other Languages:
German:Phosphophyllit
Japanese:りんようせき
フォスフォフィライト
Russian:Фосфофиллит
Other Information
Fluorescence in UV light:Violet in SW UV.
Other Information:Soluble in acids.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Phosphophyllite
Reference List:

- + 
Laubmann and Steinmetz (1920) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 55: 566.



Steinmetz (1926) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 64: 405.



Palache, C. and Berman (1927) American Mineralogist: 12: 180.



Kleber (1935) Jb. Min., Beil.-Bd.: 70A: 203.



Wolfe (1940) American Mineralogist: 25: 792.



Strunz (1942) Naturwissenschaften: 34.



Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 738-739.



American Mineralogist (1977): 62: 812-817.



Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (2000) Handbook of Mineralogy, Volume IV. Arsenates, Phosphates, Vanadates. Mineral Data Publishing, Tucson, AZ, 680pp.: 460.
Internet Links for Phosphophyllite
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  • Raman and XRD data at RRUFF project
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  • Phosphophyllite details from Handbook of Mineralogy (PDF)
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    • Localities for Phosphophyllite
    






    


    

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the  symbol to view information about a locality. 
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    (TL) indicates type locality.  ? 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.

    Australia
     
    

    • South Australia
    

      • Flinders Ranges
    

        • South Flinders Ranges
    

          • Martins Well
    
    		Johnston, C.W . & Hill, R.J. (1978): Zinc phosphates at Reaphook Hill South Australia. Mineralogical Record 9,(1), 20-24
    


      • Mt Lofty Ranges
    

        • North Mt Lofty Ranges
    

          • Barossa Valley
    

            • Angaston
    

    Bolivia
     
    

    • Oruro Department
    

      • Dalence Province
    

        • Santa Fé Mining District
    
    		[MinRec 32:475] Powder XRD by Dr. Jaroslav Hyrsl, Karlovy University, Prague.
    

    • Potosí Department
    

      • Cornelio Saavedra Province
    

        • Machacamarca District (Colavi District)
    

          • Huallani (Huayllani)
    
    		Alfredo Petrov specimens; PXRD confirmation by John Attard
    





XRD and microprobe confirmations by Dr. Anthony Kampf.
    


      • Potosí City
    
    		[MinRec 32:465]
    



Rocks & Min.: 63:138.
    


      • Rafael Bustillo Province (Bustillos Province)
    

        • Llallagua
    
    		Gems, Sixth Edition, Michael O’Donoghue, 2006, p. 437
    


      • Sud Chichas Province
    

        • San Vicente District
    
    		Salomon Rivas And Federico Ahlfeld (1998) Los Minerales de Bolivia y sus Parajes (Santa Cruz); Geology and Mineral Resources of the Altiplano and Cordillera Occidental, Bolivia (USGS Bulletin no. 1975)
    Canada
     
    

    • Nova Scotia
    

      • Yarmouth Co.
    

        • Argyle
    

          • East Kemptville
    
    		J.M. Richardson, et. al., "Mcauslanite, a Supergene Hydrated Iron Aluminum Fluorophosphate from the East Kemptville Tin Mine, Yarmouth County, Nova Scotia", Can. Min., vol. 26, pg. 917-921, 1988. and J.A. Mandarino, J.M.G. Richardson, P.J. Dunn, E.T.C. Sp
    Czech Republic
     
    

    • Bohemia (Böhmen; Boehmen)
    

      • Central Bohemia Region
    

        • Kutná Hora (Kuttenberg)
    
    		Povondra, P., Pivec, E. (eds.) et al.: Přibyslavice peraluminuous granite. Acta universitatis carolinae, Geologica, 1987, no. 3, s . 183 – 283. 
    Germany
     
    

    • Bavaria
    

      • Upper Palatinate
    

        • Oberpfälzer Wald
    

          • Vohenstrauß
    

            • Waidhaus
    

              • Hagendorf
    
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 739; Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990; Laubmann, H. & Steinmetz, H.: Z. Krist.55, 1920, 523: "Phosphatführenbde Pegmatite des Oberpfälzer und Bayrischen Waldes.
    






Am Min 62 (1977), 812; Lapis 6 (2000), 9; http://www.berthold-weber.de/h_miner.htm
    

    • North Rhine-Westphalia
    

      • Aachen
    

        • Stolberg
    
    		Blaß, G. & Graf, H. W. (1995): Neufunde von Schlackenhalden in der nördlichen Eifel (II). Mineralien-Welt, 6 (3), 28-31.
    Sweden
     
    

    • Södermanland
    

      • Norrö
    
    		Gustafsson, Lars & Otter, Bertil (1991): Mineralförekomster i Stockholmstrakten.Del 2. STEIN 18(4),4-12
    USA
     
    

    • Connecticut
    

      • Middlesex Co.
    

        • East Hampton
    
    		Schooner (1958); Schooner (1961)
    

    • Maine
    

      • Oxford Co.
    

        • Newry
    
    		King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2.
    



King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed), 2000, Mineralogy of Maine, V. 2.
    



        • Rumford
    
    		Van King specimen
    



King & Foord, 1994. Mineralogy of Maine, Vol.1, p.264.
    

    • New Hampshire
    

      • Grafton Co.
    

        • Groton
    
    		Rocks & Minerals 82:145; Mineralogical Record (1973) 4:103-130; Anthony R. Kampf, Stuart J. Mills, W.B. Simmons, James W. Nizamoff, and R.W. Whitmore (2012) Falsterite, A New Zinc-Bearing Secondary Phosphate From The Palermo #1 Mine, North Groton, New Hampshire. 39th Rochester Symposium abstracts.
    



Whitmore & Lawrence, 2004: The Pegmatite Mines Known As Palermo, p.96.
    

    • North Carolina
    

      • Cleveland Co.
    

        • Kings Mountain District
    
    		SEM-EDS, New Orleans University, 12/02
    

    • South Dakota
    

      • Pennington Co.
    

        • Keystone District
    

          • Glendale
    
    		Rocks & Minerals: 60: 116.
    

    • Virginia
    

      • Amelia Co.
    

        • Winterham
    
    		USGS Bulletin 248B (1952)
    Zambia
     
    

    • Central Province
    

      • Kabwe District
    

        • Kabwe (Broken Hill)
    
    		Geological Survey, Lusaka:XRD 1975
    

    


    

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