Ferrimolybdite Mineral Data + Say FERRIMOLYBDITE

T G Fine Minerals
[Newest Minerals] [Rare Minerals] [Past Sale Items] [About Us] [A-Rocks Auctions]
T G Fine Minerals sells Australian Minerals from all the classic and current localities
We are one the most comprehensive sellers of these (Aussie) minerals in the world
Broken Hill specimens are our specialty along with fine worldwide minerals, Australian opals, fossils & gems

General Ferrimolybdite Information

Help on Chemical  Formula: Chemical Formula: Fe+++2(MoO4)3·8(H2O)
Help on Composition: Composition: Molecular Weight = 717.61 gm
   Iron        15.56 %  Fe   22.25 % Fe2O3
   Molybdenum  40.11 %  Mo   60.17 % MoO3
   Hydrogen     1.97 %  H    17.57 % H2O
   Oxygen      42.36 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+2(MoO4)3·7(H2O)
Help on Environment: Environment: Molybdenite mines.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1914
Help on Locality: Locality: Siberia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from its chemical composition.
Help on Synonym: Synonym: Molybdite
 

Ferrimolybdite Image

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

Ferrimolybdite

Comments: Greenish-yellow crystalline aggregates of ferrimolybdite on a gossanous matrix.
Location: Quarry No 2, K?nigshain, Oberlausitz, Saxony, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Ferrimolybdite Crystallography

Help on Crystal System: Crystal System: OrthorhombicSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.4(1), 2.29(0.6), 3.33(0.5),
 

Physical Properties of Ferrimolybdite

Help on Cleavage: Cleavage: [001] Distinct
Help on Color: Color: Yellow, Canary yellow, Sulfur yellow.
Help on Density: Density: 4 - 4.5, Average = 4.25
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Scaly - Morphology like fish scales.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Silky
Help on Streak: Streak: light yellow
 

Optical Properties of Ferrimolybdite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.289 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.1937,KC= 0.2725
Help on Optical Data: Optical Data: Biaxial (+), a=1.72-1.78, b=1.73-1.79, g=1.87-2.05, bire=0.1500-0.2700, 2V(Calc)=26-32, 2V(Meas)=5-28. Dispersion r < v marked.
Help on Pleochroism (x): Pleochroism (x): clear yellow, clear yellow, or colorless.
Help on Pleochroism (y): Pleochroism (y): clear yellow, clear yellow, or colorless.
Help on Pleochroism (z): Pleochroism (z): dirty gray, canary yellow, or gray.
 

Calculated Properties of Ferrimolybdite

Help on Electron Density: Electron Density:

relectron=4.07 gm/cc
note: rFerrimolybdite =4.25 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.10566
Boson Index = 0.89434
Help on Photoelectric: Photoelectric:

PEFerrimolybdite = 68.78 barns/electron
U=PEFerrimolybdite x relectron= 280.25 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Ferrimolybdite is Not Radioactive

 

Ferrimolybdite Classification

Help on  Dana Class: Dana Class: 49.2.1.1 (49)Basic and Hydrated Molybdates and Tungstates
  (49.2)(Hydrated)
  (49.2.1)Dana Group
 
49.2.1.1 Ferrimolybdite Fe2(MoO4)3·8(H2O) Unk Ortho
Help on  Strunz Class: Strunz Class: VI/G.02-30 VI - Sulfates,Chromates,Molybdates and Tungstates
  VI/G - Molybdates [MoO4]2- and wolframates [WO4]2-
  VI/G.02 - Lindgrenite - Phyllotungstite series
 
VI/G.02-05 Biehlite! (Sb,As)2MoO6 C 2/c 2/m
 
VI/G.02-10 Lindgrenite Cu3(MoO4)2(OH)2 P 21/n 2/m
 
VI/G.02-15 Szenicsite Cu3MoO4(OH)4 Pnnm, Pnn2 Ortho
 
VI/G.02-20 Cuprotungstite Cu3(WO4)2(OH)2 Unk Tetra
 
VI/G.02-25 Vergasovaite! Cu3O[(Mo,S)O4][SO4] P nma 2/m 2/m 2/m
 
VI/G.02-30 Ferrimolybdite Fe2(MoO4)3·8(H2O) Unk Ortho
 
VI/G.02-40 Phyllotungstite CaFe3H(WO4)6·10(H2O) P 222,Pmm2,P mmm Ortho
 

Other Ferrimolybdite Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Duda&Rejl90) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Ferrimolybdite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 - Minerals of Wisconsin 13 -QUT Mineral Atlas 14 -École des Mines de Paris

Search for Ferrimolybdite using:

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

Visit our Advertisers for Ferrimolybdite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Ferrimolybdite Mineral Data :

Ask about Ferrimolybdite 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 Ferrimolybdite Specimen Label here :

Ferrimolybdite

Fe+++2(MoO4)3·8(H2O)
Dana No: 49.2.1.1 Strunz No: VI/G.02-30
Locality:

 

Notes:

 

 
   
 
Go To Webmineral Home Crystallography X-Ray D-Spacing Table Chemical Composition
Dana Classification Strunz Classification Table of Mineral Properties Alphabetical Listing of Minerals
Search Webmineral Photo Gallery of Mineral Images Help Files Links