Varlamoffite  Mineral Data

Varlamoffite Mineral Data

Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


Masons Minerals
[Thumbnails] [Miniatures] [Cabinets] [About Us] [FAQ]
Welcome To Mason's Minerals
Your Source for Beautiful Minerals and Crystals
We offer a no-questioned-asked Satisfaction Guarantee


General Varlamoffite Information

Help on Chemical  Formula: Chemical Formula: (Sn,Fe)(O,OH)2
Help on Composition: Composition: Molecular Weight = 135.50 gm
   Iron      10.30 %  Fe   14.73 % Fe2O3
   Tin       65.71 %  Sn   83.42 % SnO2
   Hydrogen   0.37 %  H     3.32 % H2O
   Oxygen    23.62 %  O
            ______        ______ 
            100.00 %      101.48 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Sn0.75Fe3+0.25O1.5(OH)0.5
Help on Environment: Environment: Oxidized protions of stannite-cassiterite veins.
Help on IMA Status: IMA Status: Not Approved IMA 1946
Help on Locality: Locality: Cligga mine, Cronwall, England. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Nicolas Varlamoff (1910-1976), Belgian geologist who collected the mineral.
 

Varlamoffite Image

Click Here for Larger Varlamoffite Image in a New Browser Window Images:
Click Here for Larger Varlamoffite Image

Varlamoffite

Comments: Yellowish earthy varlamoffite masses with quartz.
Location: Saint Austell, Cornwall, England. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Varlamoffite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.66454
Help on Cell Dimensions: Cell Dimensions: a = 4.71, c = 3.13, Z = 1; V = 69.44 Den(Calc)= 3.24
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 41/mnm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.75(1), 2.6(0.8), 3.33(0.8),
 

Physical Properties of Varlamoffite

Help on Cleavage: Cleavage: None
Help on Color: Color: Yellow, Orange red.
Help on Density: Density: 2.52 - 2.61, Average = 2.56
Help on Diaphaneity: Diaphaneity: Translucent to Opaque
Help on Hardness: Hardness: 6-6.5 - Orthoclase-Pyrite
Help on Luster: Luster: Waxy
Help on Streak: Streak: light yellow
 

Optical Properties of Varlamoffite

Help on Optical Data: Optical Data: NCalc= 1.57 - from Gladstone-Dale relationship (KC = 0.177) where Ncalc=Dcalc*KC+1
NCalc= 1.45 - from Gladstone-Dale relationship (KC = 0.177) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Varlamoffite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.89 gm/cc
note: Specific Gravity of Varlamoffite =3.24 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.11
Boson Index = 0.89
Help on Photoelectric: Photoelectric: PEVarlamoffite = 205.99 barns/electron
U=PEVarlamoffite x rElectron Density= 596.00 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Varlamoffite is Not Radioactive
 

Varlamoffite Classification

Help on  Dana Class: Dana Class: 04.04.02.01 (04)Simple Oxides
  (04.04)with a cation charge of 4+ (A++++ O2)
  (04.04.02)Dana Group
 
04.04.02.01 Varlamoffite* (Sn,Fe)(O,OH)2 P 41/mnm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 04.DB.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DB -With medium-sized cations; chains of edge-sharing octahedra
 
04.DB.05 Argutite GeO2 P 4/mnm 4/m 2/m 2/m
 
04.DB.05 Cassiterite SnO2 P 4/mnm 4/m 2/m 2/m
 
04.DB.05 Rutile TiO2 P 4/mnm 4/m 2/m 2/m
 
04.DB.05 Pyrolusite MnO2 P 4/mnm 4/m 2/m 2/m
 
04.DB.05 Plattnerite PbO2 P 4/mnm 4/m 2/m 2/m
 
04.DB.05 Varlamoffite* (Sn,Fe)(O,OH)2 P 41/mnm 4/m 2/m 2/m
 
04.DB.05 Squawcreekite? (Fe,Sb,W)O4•(H2O) P 4/mnm 4/m 2/m 2/m
 
04.DB.05 Tugarinovite MoO2 P 21/n 2/m
 
04.DB.05 Tripuhyite FeSbO4 P 41/mnm 4/m 2/m 2/m
 

Other Varlamoffite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Varlamoffite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - MinMax(Deutsch)
8 - MinMax(English)
9 - Mineralienatlas (Deutsch)
10 - QUT Mineral Atlas
11 - Ruff.Info

Search for Varlamoffite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Varlamoffite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Varlamoffite Mineral Data :

Ask about Varlamoffite 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 Espaņol

Print or Cut-and-Paste your Varlamoffite Specimen Label here :

Varlamoffite

(Sn,Fe)(O,OH)2
Dana No: 04.04.02.01 Strunz No: 04.DB.05
Locality:

 

Notes: