Schlegelite Mineral Data

T G Fine Minerals

General Schlegelite Information
Chemical Formula:	Bi7O4(MoO4)2(AsO4)3
Composition:	Molecular Weight = 2,227.18 gm
	Calcium      0.04 %  Ca    0.05 % CaO
	Vanadium     0.11 %  V     0.20 % V2O5
	Bismuth     63.62 %  Bi   70.92 % Bi2O3
	Molybdenum   8.18 %  Mo   12.28 % MoO3
	Arsenic     10.13 %  As   15.53 % As2O5
	Phosphorus   0.22 %  P     0.51 % P2O5
	Lead         0.47 %  Pb    0.50 % PbO
	Oxygen      17.23 %  O
	______        ______
	100.00 %      100.00 % = TOTAL OXIDE
Empirical Formula:	Bi6.78Pb0.05Ca0.02O3.51(MoO4)1.9(PO4)0.16(VO4)0.05(AsO4)3.01
IMA Status:	Proposed IMA 2003 (Dana # Added)
Locality:	Mine dumps of the Pucher Shaft, Schneeberg District, Erzgebirge, Saxony, Germany. Link to MinDat.org Location Data.
Name Origin:	Commission on New Minerals and Mineral Names (CNMMN)
Synonym:	IMA2003-051
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Schlegelite Crystallography
Axial Ratios:	a:b:c =0.3284:1:1.4844
Cell Dimensions:	a = 5.299, b = 16.133, c = 23.948, Z = 4; V = 2,047.28 Den(Calc)= 7.23
Crystal System:	Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnca
X Ray Diffraction:	By Intensity(I/Io): 2.688(1), 2.996(0.69), 2.963(0.48),3.41(0.37), 2.001(0.28), 1.657(0.14), 1.887(0.13),
Physical Properties of Schlegelite
Color:	Yellow.
Diaphaniety:	Transparent
Habit:	Aggregates - Made of numerous individual crystals or clusters.
Habit:	Spherical - Spherical, rounded aggregates.
Luster:	Adamantine
Optical Properties of Schlegelite
Gladstone-Dale:	CI calc= -0.043 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1722,KC= 0.1652
Optical Data:	Biaxial (-), a=2.22, b=2.255, g=2.26, bire=0.0400, 2V(Calc)=40, 2V(Meas)=42. Dispersion Calculated index values.
Calculated Properties of Schlegelite
Electron Density:	relectron=6.11 gm/cc note: rSchlegelite =7.23 gm/cc.
Fermion Index	Fermion Index = 0.02196 Boson Index = 0.97804
Photoelectric:	PESchlegelite =1,241.54 barns/electron U=PESchlegelite x relectron=7,591.91 barns/cc.
Radioactivity:	GRapi = 0 (Gamma Ray American Petroleum Institute Units) Schlegelite is Not Radioactive
Schlegelite Classification
Dana Class:	48.4.3.2 (48)Anhydrous Molybdates and Tungstates
	(48.4)with miscellaneous formulae
	(48.4.3)Dana Group
	48.4.3.1 Vergasovaite! Cu3O[(Mo,S)O4][SO4] P nma 2/m 2/m 2/m
	48.4.3.2 Schlegelite ! Bi7O4(MoO4)2(AsO4)3 Pnca 2/m 2/m 2/m
Strunz Class:	VII/X.00-00 VII - Phosphates, Arsenates and Vanadates
	VII/X - Unclassified Strunz Phosphates, Arsenates and Vanadates
	VII/X.00 - Molybdate Group, Arsenate
Other Schlegelite Information
See Also:	Links to other databases for Schlegelite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas Search for Schlegelite using:   Web webmineral.com [ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO] Visit our Advertisers for Schlegelite : AA Mineral Specimens B & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Schlegelite Mineral Data : Ask about Schlegelite here : Ask-A-Mineralogist from the Mineralogical Society of America Mindat.org's Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals - also available in Español Print or Cut-and-Paste your Schlegelite Specimen Label here : Schlegelite Bi7O4(MoO4)2(AsO4)3 Dana No: 48.4.3.2 Strunz No: VII/X.00-00 Locality:   Notes: