Pseudograndreefite Mineral Data + 
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- 12.1.3.1 Pseudograndreefite Pb6SO4F1O F 222 2 2 2
- VI/B.13-10 Lanarkite Pb2(SO4)O C 2/m 2/m
- VI/B.13-20 Olsacherite Pb2(SeO4)(SO4) P 2212 2 2 2
- VI/B.13-30 Grandreefite Pb2SO4F2 A2/a 2/m
- VI/B.13-40 Pseudograndreefite Pb6SO4F1O F 222 2 2 2
- VI/B.13-50 Leadhillite Pb4(SO4)(CO3)2(OH)2 P 21/a 2/m
- VI/B.13-60 Macphersonite Pb4(SO4)(CO3)2(OH)2 Pcab 2/m 2/m 2/m
- VI/B.13-70 Susannite Pb4(SO4)(CO3)2(OH)2 R 3 3
General Pseudograndreefite Information |
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 Chemical Formula: |
Pb6SO4F1O | ||
| Composition: |
Molecular Weight = 1,529.25 gm | ||
| Lead 81.29 % Pb 87.57 % PbO | |||
| Sulfur 2.10 % S 5.24 % SO3 | |||
| Oxygen 4.18 % O | |||
| Fluorine 12.42 % F 12.42 % F | |||
| - % F -5.23 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Pb6(SO4)F10 | ||
| IMA Status: |
Approved IMA 1989 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
Search for Pseudograndreefite Images | |||
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Images:
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Pseudograndreefite Crystallography |
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| Axial Ratios: |
a:b:c =0.4351:1:0.4338 | ||
| Cell Dimensions: |
a = 8.5182, b = 19.5736, c = 8.4926, Z = 4; V = 1,415.99 Den(Calc)= 7.17 | ||
| Crystal System: |
Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: F 222 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.204(1), 1.779(0.7), 2.999(0.3), | ||
Physical Properties of Pseudograndreefite |
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| Cleavage: |
None | ||
| Color: |
Colorless. | ||
| Density: |
7 | ||
| Diaphaniety: |
Transparent | ||
| Hardness: |
2.5 - Finger Nail | ||
| Luster: |
Subadamantine | ||
| Streak: |
white | ||
Optical Properties of Pseudograndreefite |
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| Gladstone-Dale: |
CI meas= 0.058 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.081 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.121,KPDmeas= 0.1239,KC= 0.1316 |
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| Optical Data: |
Biaxial (+), a=1.864, b=1.865, g=1.873, bire=0.0090, 2V(Calc)=40, 2V(Meas)=30. | ||
Calculated Properties of Pseudograndreefite |
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| Electron Density: |
relectron=5.77 gm/cc |
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| Fermion Index |
Fermion Index = 0.17983 Boson Index = 0.82017 |
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| Photoelectric: |
PEPseudograndreefite =1,514.85 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Pseudograndreefite is Not Radioactive |
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Pseudograndreefite Classification |
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| Dana Class: |
12.1.3.1 (12)Compound Halides | ||
| (12.1)with miscellaneous anions | |||
| (12.1.3)Dana Group | |||
| Strunz Class: |
VI/B.13-40 VI - Sulfates,Chromates,Molybdates and Tungstates | ||
| VI/B - Waterfree sulfates [SO4]2- with unfamiliar anions. mostly big cations | |||
| VI/B.13 - Lanarkite - Susannite series | |||
Other Pseudograndreefite Information |
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| References: |
PHYS. PROP.(Am.Min.,Vol.74,p927-933,1989) OPTIC PROP.(Am.Min.,Vol.74,p927-933,1989) | ||
| See Also: |
Links to other databases for Pseudograndreefite : 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 Pseudograndreefite using: Visit our Advertisers for Pseudograndreefite : Translate Pseudograndreefite Mineral Data : Ask about Pseudograndreefite here : Print or Cut-and-Paste your Pseudograndreefite Specimen Label here :
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