Mineralogy Database

Phosphophyllite Mineral Data

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General Phosphophyllite Information

Help on Chemical  Formula: Chemical Formula: Zn2(Fe++,Mn)(PO4)2•4(H2O)
Help on Composition: Composition: Molecular Weight = 448.40 gm
   Manganese    3.06 %  Mn    3.95 % MnO
   Zinc        29.17 %  Zn   36.30 % ZnO
   Iron         9.34 %  Fe   12.02 % FeO
   Phosphorus  13.82 %  P    31.66 % P2O5
   Hydrogen     1.80 %  H    16.07 % H2O
   Oxygen      42.82 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn2Fe2+0.75Mn2+0.25(PO4)2•4(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1920
Help on Locality: Locality: Hagendorf, Waidhaus, Oberpfalz, Bayern (Bavaria), Germany Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its chemical composition containing phosphorus and the Greek fyllon - meaning "leaf."
Help on Name Pronunciation: Name Pronunciation: Phosphophyllite Say PHOSPHOPHYLLITE
Help on Synonym: Synonym: ICSD 100078
  PDF 29-1427

Phosphophyllite Image

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Comments: Transparent, blue crystal of phosphophyllite.
Location: Hagendorf, Bavaria, Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Phosphophyllite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.0403:1:2.076
Help on Cell Dimensions: Cell Dimensions: a = 10.377, b = 5.086, c = 10.559, Z = 2; beta = 121.1° V = 477.18 Den(Calc)= 3.12
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.438(1), 8.86(0.85), 3.383(0.6),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 2 1 0) ( 0 1 0) ( 1 1 1) ( 1 0 2) ( 1 1 0) ( 1 0 0) ( 2 1 1) ( 0 0 1)

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Physical Properties of Phosphophyllite

Help on Cleavage: Cleavage: {100} Perfect, {010} Distinct, {102} Distinct
Help on Color: Color: Blue green, Colorless, Light green.
Help on Density: Density: 3.1
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.
Help on Hardness: Hardness: 3-3.5 - Calcite-Copper Penny
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Phosphophyllite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.02 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.027 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.195,KPDmeas= 0.1962,KC= 0.2003
Ncalc = 1.62
Help on Optical Data: Optical Data: Biaxial (-), a=1.595, b=1.614, g=1.616, bire=0.0210, 2V(Calc)=34, 2V(Meas)=44.3.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): pale blue green.
Help on Pleochroism (z): Pleochroism (z): pale blue green.

Calculated Properties of Phosphophyllite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.04 gm/cc
note: Specific Gravity of Phosphophyllite =3.10 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEPhosphophyllite = 18.48 barns/electron
U=PEPhosphophyllite x rElectron Density= 56.16 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Phosphophyllite is Not Radioactive

Phosphophyllite Classification

Help on  Dana Class: Dana Class: (40)Hydrated Phosphates, etc
  (40.02)where A++ (B++)2 (XO4) � x(H2O)
  (40.02.07)Dana Group Phosphophyllite Zn2(Fe,Mn)(PO4)2•4(H2O) P 21/c 2/m
Help on  Strunz Class: Strunz Class: 08.CA.40 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CA -With small and large/medium cations
08.CA.40 Phosphophyllite Zn2(Fe,Mn)(PO4)2•4(H2O) P 21/c 2/m

Other Phosphophyllite Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Phosphophyllite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Dana No: Strunz No: 08.CA.40





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