Stannomicrolite  Mineral Data

Stannomicrolite Mineral Data

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

Advertisment
The Mineral News newsletter has expanded to sixteen (16) pages a month and it has added significant features such as frequent book reviews, photographs to supplement new mineral descriptions. Occasional color issues are produced as well.
John Betts - Fine Minerals, New York. Dealers of Fine Minerals and Natural Crystal Clusters since 1989. We buy rock collections, we buy gem collections, we buy mineral collections.
Dakota Matrix was founded in 1996 and has offered systematic and rare mineral specimens online since 1998.
Weinrich Minerals, A Dealer in Fine Mineral Specimens - Since 1989. We buy collections and single high quality specimens.

General Stannomicrolite Information

Help on Chemical  Formula: Chemical Formula: (Sn++,Fe++,Mn++)(Ta,Nb,Sn++++)2(O,OH)7
Help on Composition: Composition: Molecular Weight = 637.44 gm
   Tantalum   34.06 %  Ta   41.59 % Ta2O5
   Titanium    0.75 %  Ti    1.25 % TiO2
   Manganese   0.86 %  Mn    1.11 % MnO
   Niobium     5.83 %  Nb    8.34 % Nb2O5
   Iron        1.75 %  Fe    2.25 % FeO
   Tin        39.11 %  Sn   35.93 % SnO /  9.46 % SnO2
   Hydrogen    0.06 %  H     0.57 % H2O
   Oxygen     17.57 %  O
             ______        ______ 
             100.00 %      100.50 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Sn1.7Fe2+0.2Mn2+0.1Ta1.2Sn0.4Nb0.4Ti0.1O6.6(OH)0.4
Help on Environment: Environment: Replacing ferrowodginite inclusions in tantalian cassiterite, in a museum specimen from a granite pegmatite.
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Sukula, Tammela, Finland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for tin (STANNum), in the formula and membership in the microlite subgroup of the pyrochlore group.
Help on Name Pronunciation: Name Pronunciation: Stannomicrolite + Pronunciation Say STANNOMICROLITE
Help on Synonym: Synonym: ICSD 38892
  PDF 13-1441
  Sukulaite
 

Stannomicrolite Image

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

Stannomicrolite   Stokesite

Comments: Stokesite "ball" composed of lath-like tan or clear crystals with several micro crystals of yellow stannomicrolite.
Location: Urucum mine, Galileia, Minas Gerais, Brazil. Scale: 1.2 cm.
© Tom Loomis / Dakota Matrix

Stannomicrolite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 10.57, Z = 8; V = 1,180.93 Den(Calc)= 7.17
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.05(1), 1.589(0.8), 1.866(0.8),
Click Here for Large Stannomicrolite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate

Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above


Gasperin M , Comptes Rendus Hebdomadaires des Seances de l Academie des Sciences , 240 (1955) p.2340-2342, Synthese et identification de deux oxydes doubles de tantale et d etain, Sample: synthetic

 

Physical Properties of Stannomicrolite

Help on Color: Color: Yellow brown.
Help on Density: Density: 8.34
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Selvage - As a reaction rim, surrounding the host mineral.
Help on Hardness: Hardness: 4.5-5.5 - Near Apatite
Help on Luster: Luster: Adamantine
 

Optical Properties of Stannomicrolite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.202 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.072 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1506,KPDmeas= 0.1295,KC= 0.1623
Ncalc = 2.16 - 2.35
Help on Optical Data: Optical Data: Isotropic, n=2.08.
 

Calculated Properties of Stannomicrolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.19 gm/cc
note: Specific Gravity of Stannomicrolite =7.17 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.06
Boson Index = 0.94
Help on Photoelectric: Photoelectric: PEStannomicrolite = 541.28 barns/electron
U=PEStannomicrolite x rElectron Density=3,352.27 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Stannomicrolite is Not Radioactive
 

Stannomicrolite Classification

Help on  Dana Class: Dana Class: 08.02.02.06 (08)Multiple Oxides with Nb, Ta, and Ti
  (08.02)where (A)2 (B2O6) (O,OH,F)
  (08.02.02)Pyrochlore Group (Microlite Subgroup; Ta>Nb;(Ta+Nb)>2(Ti)
 
08.02.02.01 Microlite (Na,Ca)2Ta2O6(O,OH,F) F d3m 4/m 3 2/m
 
08.02.02.02 Bariomicrolite Ba(Ta,Nb)2(O,OH)7 F d3m 4/m 3 2/m
 
08.02.02.03 Plumbomicrolite (Pb,Ca,U)2Ta2O6(OH) F d3m 4/m 3 2/m
 
08.02.02.04 Uranmicrolite (U,Ca)2(Ta,Nb)2O6(OH) F d3m 4/m 3 2/m
 
08.02.02.05 Bismutomicrolite (Bi,Ca)(Ta,Nb)2O6(OH) F d3m 4/m 3 2/m
 
08.02.02.06 Stannomicrolite (Sn,Fe,Mn)(Ta,Nb,Sn)2(O,OH)7 F d3m 4/m 3 2/m
 
08.02.02.07 Stibiomicrolite (Sb,Ca,Na)2(Ta,Nb)2(O,OH)7 F d3m 4/m 3 2/m
 
08.02.02.08 Fluornatromicrolite! (Na,Ca,Bi)2Ta2O6F F d3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 04.DH.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DH -With large (± medium-sized) cations; sheets of edge-sharing octahedra
 
04.DH.15 Alumotungstite (W,Al)(O,OH)3(?) Unk Cubic
 
04.DH.15 Betafite (Ca,U)2(Ti,Nb,Ta)2O6(OH) F d3m 4/m 3 2/m
 
04.DH.15 Ferritungstite (K,Ca,Na)(W,Fe)2(O,OH)6•(H2O) F d3m 4/m 3 2/m
 
04.DH.15 Cesstibtantite (Cs,Na)SbTa4O12 F d3m 4/m 3 2/m
 
04.DH.15 Bismutomicrolite (Bi,Ca)(Ta,Nb)2O6(OH) F d3m 4/m 3 2/m
 
04.DH.15 Ceriopyrochlore-(Ce) (Ce,Ca,Y)2(Nb,Ta)2O6(OH,F) F d3m 4/m 3 2/m
 
04.DH.15 Bariopyrochlore (Ba,Sr)(Nb,Ti)2(O,OH)7 F d3m 4/m 3 2/m
 
04.DH.15 Bariomicrolite Ba(Ta,Nb)2(O,OH)7 F d3m 4/m 3 2/m
 
04.DH.15 Calciobetafite Ca2(Ti,Nb)2(O,OH)7 F d3m 4/m 3 2/m
 
04.DH.15 Jixianite Pb(W,Fe)2(O,OH)7 F d3m 4/m 3 2/m
 
04.DH.15 Plumbomicrolite (Pb,Ca,U)2Ta2O6(OH) F d3m 4/m 3 2/m
 
04.DH.15 Kalipyrochlore (H2O,Sr)(Nb,Ti)(O,OH)6•(H2O,K) F d3m 4/m 3 2/m
 
04.DH.15 Plumbopyrochlore (Pb,Y,U,Ca)2-xNb2O6(OH) F d3m 4/m 3 2/m
 
04.DH.15 Strontiopyrochlore* Sr2Nb2(O,OH)7 F d3m 4/m 3 2/m
 
04.DH.15 Uranmicrolite (U,Ca)2(Ta,Nb)2O6(OH) F d3m 4/m 3 2/m
 
04.DH.15 Pyrochlore (Na,Ca)2Nb2O6(OH,F) F d3m 4/m 3 2/m
 
04.DH.15 Microlite (Na,Ca)2Ta2O6(O,OH,F) F d3m 4/m 3 2/m
 
04.DH.15 Natrobistantite (Na,Cs)Bi(Ta,Nb,Sb)4O12 F d3m 4/m 3 2/m
 
04.DH.15 Plumbobetafite (Pb,U,Ca)(Ti,Nb)2O6(OH,F) F d3m 4/m 3 2/m
 
04.DH.15 Stibiomicrolite (Sb,Ca,Na)2(Ta,Nb)2(O,OH)7 F d3m 4/m 3 2/m
 
04.DH.15 Stannomicrolite (Sn,Fe,Mn)(Ta,Nb,Sn)2(O,OH)7 F d3m 4/m 3 2/m
 
04.DH.15 Stibiobetafite (Sb,Ca)2(Ti,Nb,Ta)2(O,OH)7 F d3m 4/m 3 2/m
 
04.DH.15 Uranpyrochlore (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) F d3m 4/m 3 2/m
 
04.DH.15 Bismutopyrochlore! (Bi,U,Ca,Pb)1x(Nb,Ta)2O6(OH)•n(H2O) F d3m 4/m 3 2/m
 
04.DH.15 Fluornatromicrolite! (Na,Ca,Bi)2Ta2O6F F d3m 4/m 3 2/m
 
04.DH.15 Yttrobetafite-(Y) (Y,U,Ce)2(Ti,Nb,Ta)2O6(OH) F d3m 4/m 3 2/m
 
04.DH.15 Yttropyrochlore-(Y) (Y,Na,Ca,U)1-2(Nb,Ta,Ti)2(O,OH)7 F d3m 2/m 3
 
04.DH.15 Elsmoreite! WO3•0.5(H2O) F d3m 4/m 3 2/m
 

Other Stannomicrolite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Stannomicrolite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Stannomicrolite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Stannomicrolite :

A Bijoux Google Search for Stannomicrolite
Adam's Minerals Google Search for Stannomicrolite
Cape Minerals Google Search for Stannomicrolite
Dakota Matrix Minerals Google Search for Stannomicrolite
Excalibur Mineral Corp. Google Search for Stannomicrolite
Exceptional Minerals Google Search for Stannomicrolite
John Betts Fine Minerals Search for Stannomicrolite
McDougall Minerals Google Search for Stannomicrolite
Mineral News Website Link
Rock and Mineral Shows Google Search for Stannomicrolite
Weinrich Minerals, Inc. Google Search for Stannomicrolite

Ask about Stannomicrolite 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 Stannomicrolite Specimen Label here :

Stannomicrolite

(Sn++,Fe++,Mn++)(Ta,Nb,Sn++++)2(O,OH)7
Dana No: 08.02.02.06 Strunz No: 04.DH.15
Locality:

 

Notes: