General Fizelyite Information
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Chemical Formula: |
Pb14Ag5Sb21S48 (?) |
Composition: |
Molecular Weight = 7,536.06 gm |
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Silver 7.16 % Ag |
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Antimony 33.93 % Sb |
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Lead 38.49 % Pb |
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Sulfur 20.42 % S |
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______ |
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100.00 % |
Empirical Formula: |
Pb14Ag5Sb21S48 |
Environment: |
In hydrothermal veins. |
IMA Status: |
Valid Species (Pre-IMA) 1926 |
Locality: |
Kisbanya, Comitat Szatmar, Rumania. Link to MinDat.org Location Data. |
Name Origin: |
For Sandor Fizely, mining engineer, who discovered the mineral. |
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Fizelyite Image |
Images:
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Fizelyite
Comments: Galena and sphalerite with minor chalcopyrite and a heavy druse of acicular fizelyite crystals.
Location: Herja, Kisbanya, Transylvania, Romania.
Scale: Crystal size 3 mm.
© John Veevaert |
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Fizelyite Crystallography
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Axial Ratios: |
a:b:c =0.6841:1:0.452 |
Cell Dimensions: |
a = 13.167, b = 19.246, c = 8.7, Z = 1; beta = 90.4° V = 2,204.63 Den(Calc)= 5.68 |
Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n |
X Ray Diffraction: |
By Intensity(I/Io): 3.32(1), 2.939(0.55), 3.29(0.55), |
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Physical Properties of Fizelyite
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Cleavage: |
[010] Good |
Color: |
Lead gray, Dark gray, Steel gray. |
Density: |
5.56 |
Diaphaniety: |
Opaque |
Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
Habit: |
Striated - Parallel lines on crystal surface or cleavage face. |
Hardness: |
2 - Gypsum |
Luster: |
Metallic |
Streak: |
dark gray |
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Optical Properties of Fizelyite
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Optical Data: |
NCalc= 1.39 - from Gladstone-Dale relationship (KC = 0.0681) where Ncalc=Dcalc*KC+1
NCalc= 1.38 - from Gladstone-Dale relationship (KC = 0.0681) where Ncalc=Dmeas*KC+1 |
RL Anisotrophism: |
Shown, but without distinct color effects. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Fizelyite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
41.60 |
48.30 |

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| 420 nm |
40.60 |
47.40 |

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| 440 nm |
39.60 |
46.50 |

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| 460 nm |
39.30 |
46.10 |

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| 480 nm |
39.00 |
45.80 |

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| 500 nm |
38.80 |
45.60 |

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| 520 nm |
38.40 |
45.20 |

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| 540 nm |
38.00 |
44.90 |

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| 560 nm |
37.80 |
44.50 |

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| 580 nm |
37.40 |
43.80 |

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| 600 nm |
36.90 |
43.20 |

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| 620 nm |
36.30 |
42.40 |

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| 640 nm |
35.60 |
41.40 |

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| 660 nm |
34.80 |
40.30 |

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| 680 nm |
34.00 |
39.00 |

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| 700 nm |
33.00 |
37.80 |

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Calculated Relative Intensity Colors of Fizelyite in Air
Relative Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
240% |
250% |
| R1 |
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| R2 |
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Calculated Properties of Fizelyite
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Electron Density: |
relectron=4.86 gm/cc note: rFizelyite =5.68 gm/cc. |
Fermion Index |
Fermion Index = 0.08659 Boson Index = 0.91341 |
Photoelectric: |
PEFizelyite = 828.02 barns/electron U=PEFizelyite x relectron=4,021.60 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Fizelyite is Not Radioactive |
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Fizelyite Classification
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Dana Class: |
3.4.15.8 (3)Sulfides - Sulfosalts |
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(3.4)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(3.4.15)Lillianite Group (Orthorhombic, AmBnS6 where A=Pb, Ag, Mn and B=Sb, Bi) |
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3.4.15.1 Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m |
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3.4.15.2 Bursaite Pb5Bi4S11 Bbmm 2/m 2/m 2/m |
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3.4.15.3 Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m |
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3.4.15.4 Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m |
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3.4.15.5 Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m |
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3.4.15.6 Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m |
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3.4.15.7 Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m |
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3.4.15.8 Fizelyite Pb14Ag5Sb21S48(?) P 21/n 2/m |
Strunz Class: |
II/E.23-20 II - Sulfides and sulphosalts |
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II/E - Sulfosalts (S : As,Sb,Bi = x) Complex Lead-Sulfosalts (Pb-Fe/Mn, Pb-Ag), with predominant Antimon x = 2.3 - 2.0 |
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II/E.23 - Uchucchacuaite - Roshchinite series |
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II/E.23-10 Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m |
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II/E.23-20 Fizelyite Pb14Ag5Sb21S48(?) P 21/n 2/m |
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II/E.23-30 Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m |
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II/E.23-40 Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m |
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II/E.23-50 Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m |
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Other Fizelyite Information
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References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
See Also: |
Links to other databases for Fizelyite :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 - EUROmin Project
4 -Google Images
5 -Google Scholar
6 -Handbook of Mineralogy (UofA)
7 -MinDAT
8 -MinMax(Deutsch)
9 -MinMax(English)
10 -Mineralienatlas (Deutsch)
11 -QUT Mineral Atlas
12 -École des Mines de Paris
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Fizelyite
Pb14Ag5Sb21S48 (?)
Dana No: 3.4.15.8 Strunz No: II/E.23-20
Locality:
Notes:
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