Leningradite Mineral Data + 
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- 41.5.17.1 Leningradite PbCu3(VO4)Cl2 I bam 2/m 2/m 2/m
- VII/B.28-10 Bertossaite Li2CaAl4(PO4)4(OH)4 Imaa,Iaa2 Ortho
- VII/B.28-20 Palermoite (Sr,Ca)(Li,Na)2Al4(PO4)4(OH)4 I mmm 2/m 2/m 2/m
- VII/B.28-30 Attakolite (Ca,Sr)Mn(Al,Fe)4[(Si,P)O4]H(PO4)3(OH)4 C 2/m 2/m
- VII/B.28-35 Sewardite! CaFe2(AsO4)2(OH)2 C ccm 2/m 2/m 2/m
- VII/B.28-40 Carminite PbFe2(AsO4)2(OH)2 C ccm 2/m 2/m 2/m
- VII/B.28-60 Leningradite PbCu3(VO4)Cl2 I bam 2/m 2/m 2/m
- VII/B.28-70 Namibite CuBi2(VO4)O2 C 2/m,Cm,C 2 Mono
- VII/B.28-80 Paganoite! (Ni,Co)BiAsO5 P1 1
General Leningradite Information |
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 Chemical Formula: |
PbCu++3(VO4)Cl2 | ||
| Composition: |
Molecular Weight = 583.68 gm | ||
| Vanadium 8.73 % V 15.58 % V2O5 | |||
| Copper 32.66 % Cu 40.88 % CuO | |||
| Lead 35.50 % Pb 38.24 % PbO | |||
| Chlorine 12.15 % Cl 12.15 % Cl | |||
| - % Cl -2.74 % -O=Cl2 | |||
| Oxygen 10.96 % O | |||
| ______ ______ | |||
| 100.00 % 104.11 % = TOTAL OXIDE | |||
| Empirical Formula: |
PbCu3(VO4)Cl2 | ||
| IMA Status: |
Approved IMA 1990 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
Search for Leningradite Images | |||
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Images:
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Leningradite Crystallography |
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| Axial Ratios: |
a:b:c =0.8109:1:0.8445 | ||
| Cell Dimensions: |
a = 8.988, b = 11.083, c = 9.36, Z = 4; V = 932.39 Den(Calc)= 4.16 | ||
| Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: I bam | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.418(1), 2.763(0.95), 2.358(0.73), | ||
Physical Properties of Leningradite |
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| Cleavage: |
[010] Perfect | ||
| Color: |
Red, Reddish brown. | ||
| Density: |
4.8 | ||
| Diaphaniety: |
Transparent | ||
| Hardness: |
4.5 - Between Fluorite and Apatite | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
orange red | ||
Optical Properties of Leningradite |
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| Gladstone-Dale: |
CI meas= -0.299 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.499 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.3173,KPDmeas= 0.275,KC= 0.2117 |
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| Optical Data: |
Biaxial (-), b=2.29, g=2.35, | ||
Calculated Properties of Leningradite |
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| Electron Density: |
relectron=4.24 gm/cc |
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| Fermion Index |
Fermion Index = 0.07872 Boson Index = 0.92128 |
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| Photoelectric: |
PELeningradite = 634.63 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Leningradite is Not Radioactive |
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Leningradite Classification |
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| Dana Class: |
41.5.17.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | ||
| (41.5)where (A B)2 (XO4) Zq | |||
| (41.5.17)Dana Group | |||
| Strunz Class: |
VII/B.28-60 VII - Phosphates, Arsenates and Vanadates | ||
| VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb | |||
| VII/B.28 - Carminite series | |||
Other Leningradite Information |
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| References: |
PHYS. PROP.(Am.Min.,Vol.76,p1435,1991) OPTIC PROP.(Am.Min.,Vol.76,p1435,1991) | ||
| See Also: |
Links to other databases for Leningradite : 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 Search for Leningradite using: Visit our Advertisers for Leningradite : Translate Leningradite Mineral Data : Ask about Leningradite here : Print or Cut-and-Paste your Leningradite Specimen Label here :
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