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Phosphophyllite

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Formula:
Zn2Fe(PO4)2 · 4H2O
System:
Monoclinic
Colour:
Bright blue-green to ...
Lustre:
Vitreous, Sub-Vitreous, Resinous, Waxy
Hardness:
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.

Classification of Phosphophyllite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
8.CA.40

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

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2 : AB2(XO4)2·xH2O
19.6.14

19 : Phosphates
6 : Phosphates of Zn
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First Recorded Occurrence of Phosphophyllite

Year of Discovery:
1920
Geological Setting of First Recorded Material:
Granite Pegmatite

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

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:
3.08 - 3.13 g/cm3 (Measured)    3.12 g/cm3 (Calculated)

Crystallography of Phosphophyllite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
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:
Data courtesy of RRUFF project at University of Arizona, used with permission.
X-Ray Powder Diffraction Data:
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
Max Birefringence:
δ = 0.021
Image 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:
Zn2Fe(PO4)2 · 4H2O
Essential elements:
All elements listed in formula:
Analytical Data:
Soluble in mineral acids
Common Impurities:
Mn

Relationship of Phosphophyllite to other Species

8.CA.05FransoletiteCa3Be2(PO4)2(HPO4)2 · 4H2O
8.CA.05ParafransoletiteCa3Be2(PO4)2(HPO4)2 · 4H2O
8.CA.10EhrleiteCa4Be3Zn2(PO4)6 · 9H2O
8.CA.15Faheyite(Mn,Mg,Na)Be2Fe2(PO4)4 · 6H2O
8.CA.20GainesiteNa(Na,K)(Be,Li)Zr2(PO4)4 · 1.5-2H2O
8.CA.20MccrillisiteNaCs(Be,Li)Zr2(PO4)4 · 1-2H2O
8.CA.20SelwyniteNaK(Be,Al)Zr2(PO4)4 · 2H2O
8.CA.25PahasapaiteLi8(Ca,Li,K)10.5Be24(PO4)24 · 38H2O
8.CA.30HopeiteZn3(PO4)2 · 4H2O
8.CA.30ArsenohopeiteZn3(AsO4)2 · 4H2O
8.CA.35WarikahniteZn3(AsO4)2 · 2H2O
8.CA.45ParascholziteCaZn2(PO4)2 · 2H2O
8.CA.45ScholziteCaZn2(PO4)2 · 2H2O
8.CA.50KeyiteCu32+Zn4Cd2(AsO4)6 · 2H2O
8.CA.55PushcharovskiteK0.6Cu18(AsO4)(HAsO4)10(H2AsO4)4(OH)9.6·18.6H2O
8.CA.60ProsperiteCaZn2(AsO4)(HAsO4)(OH)
8.CA.65GengenbachiteKFe33+(HPO4)4(H2PO4)2 · 6H2O
8.CA.70ParahopeiteZn3(PO4)2 · 4H2O
19.6.1TarbuttiteZn2(PO4)(OH)
19.6.2SpenceriteZn4(PO4)2(OH)2 · 3H2O
19.6.3HopeiteZn3(PO4)2 · 4H2O
19.6.4ParahopeiteZn3(PO4)2 · 4H2O
19.6.5Veszelyite(Cu,Zn)2Zn(PO4)2 · 2H2O
19.6.6Kipushite(Cu,Zn)5Zn(PO4)2(OH)6 · H2O
19.6.7ScholziteCaZn2(PO4)2 · 2H2O
19.6.8ParascholziteCaZn2(PO4)2 · 2H2O
19.6.9EhrleiteCa4Be3Zn2(PO4)6 · 9H2O
19.6.10Faustite(Zn,Cu)Al6(PO4)4(OH)8 · 4H2O
19.6.11Aheylite(Fe2+,Zn)Al6(PO4)4(OH)8 · 4H2O
19.6.12JungiteCa2Zn4Fe83+(PO4)9(OH)9 · 16H2O
19.6.13SchooneriteZnMn2+Fe22+Fe3+(PO4)3(OH)2 · 9H2O

Other Names for Phosphophyllite

Name in Other Languages:

Other Information

Other Information:
Soluble in acids.
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 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

Specimens:
The following Phosphophyllite specimens are currently listed for sale on minfind.com.

Localities for Phosphophyllite

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.
(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.
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
Peter Elliott
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
      • 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.; Dill H.G.: "Mineralogical and chemical composition of the Hagendorf-North Pegmatite, SE Germany - a monographic study", J. Min. Geochem, 2013
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.
Portugal
 
  • Guarda District
    • Gouveia
      • Folgosinho
Alves, P., Leal Gomes, C., Lopes Nunes, J.E (2012) : Produtos de evolução de triplite-zwieselite, fluorapatite e isokite da mina Sítio do Castelo (Folgosinho, Guarda). II Congresso Jovens Investigadores em Geociências, LEG 2012.
Spain
 
  • Galicia
    • Pontevedra
      • Gondomar
        • Vincios
          • Mt Galiñeiro
Calvo, M. (2015): Minerales y Minas de España. Vol. VII, Fosfatos, arseniatos y vanadatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 479 pp.
Sweden
 
  • Södermanland
    • Norrö
Gustafson, Lars.(1989): Norrö glimmerbrott.Stuffen (Medlemsblad för Södertörn Amatörgeologiska Sällskap). Nr 39, nov 1989, 8-12; Gustafsson, Lars & Otter, Bertil (1991): Mineralförekomster i Stockholmstrakten.Del 2. STEIN 18(4),4-12
USA
 
  • Connecticut
    • Middlesex Co.
      • East Hampton (Chatham)
        • Cobalt
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.
      • Paris
Dick Dionne
      • 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
Mineral and/or Locality  
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