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Grandreefite Mineral Data + |
General Grandreefite Information |
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| Pb2SO4F2 | |||
| Molecular Weight = 548.46 gm | |||
| Lead 75.56 % Pb 81.39 % PbO | |||
| Sulfur 5.85 % S 14.60 % SO3 | |||
| Oxygen 11.67 % O | |||
| Fluorine 6.93 % F 6.93 % F | |||
| - % F -2.92 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Pb2(SO4)F2 | |||
| Approved IMA 1989 | |||
| Link to MinDat.org Location Data. | |||
| ICSD 69697 | |||
| PDF 45-1455 | |||
Search for Grandreefite Images | |||
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Grandreefite Crystallography |
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| a:b:c =1.9511:1:3.2062 | |||
| a = 8.667, b = 4.4419, c = 14.242, Z = 4; beta = 107.418° V = 523.15 Den(Calc)= 6.96 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: A2/a | |||
| By Intensity(I/Io): 3.159(1), 3.116(0.9), 3.084(0.8), | |||
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Mouse |
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Physical Properties of Grandreefite |
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| None | |||
| Colorless. | |||
| 7.1 | |||
| Transparent | |||
| 2.5 - Finger Nail | |||
| Subadamantine | |||
| white | |||
Optical Properties of Grandreefite |
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| CI meas= 0.097 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= 0.079 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1265,KPDmeas= 0.124,KC= 0.1373 |
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| Biaxial (+), a=1.872, b=1.873, g=1.897, bire=0.0250, 2V(Calc)=24, 2V(Meas)=23. | |||
Calculated Properties of Grandreefite |
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relectron=5.84 gm/cc |
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| Fermion Index = 0.16747 Boson Index = 0.83253 |
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PEGrandreefite =1,383.38 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Grandreefite is Not Radioactive |
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Grandreefite Classification |
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| 12.1.2.1 (12)Compound Halides | |||
| (12.1)with miscellaneous anions | |||
| (12.1.2)Dana Group | |||
| VI/B.13-30 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 Grandreefite Information |
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| PHYS. PROP.(Am.Min.,Vol.74,p927-933,1989) OPTIC PROP.(Am.Min.,Vol.74,p927-933,1989) | |||
| Links to other databases for Grandreefite : 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 - WWW-MINCRYST 13 -École des Mines de Paris Search for Grandreefite using: Visit our Advertisers for Grandreefite : Translate Grandreefite Mineral Data : Ask about Grandreefite here : Print or Cut-and-Paste your Grandreefite Specimen Label here :
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