Poughite Mineral Data

Poughite Mineral Data
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General Poughite Information

Help on Chemical Formula: Chemical Formula: Fe+++2(TeO3)2(SO4)•3(H2O)
Help on Composition: Composition: Molecular Weight = 613.00 gm
   Iron       18.22 %  Fe   23.44 % FeO
   Tellurium  41.63 %  Te   52.07 % TeO2
   Hydrogen    0.99 %  H     8.82 % H2O
   Sulfur      5.23 %  S    13.06 % SO3
   Oxygen     33.93 %  O
             ______        ______ 
             100.00 %       97.39 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+2(TeO3)2(SO4)•3(H2O)
Help on IMA Status: IMA Status: Approved IMA 1968
Help on Locality: Locality: Moctezuma mine ("La Bambolla"), Moctezuma, Sonora, Mexico. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Frederick Harvey Pough (1906-), American mineralogist, curator, and writer.
Help on Name Pronunciation: Name Pronunciation: Poughite Say POUGHITE
Help on Synonym: Synonym: ICSD 34597
  PDF 21-435
 

Poughite Image

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Poughite

Comments: Yellow coatings of poughite on matrix.
Location: Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Poughite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.6802:1:0.5535
Help on Cell Dimensions: Cell Dimensions: a = 9.66, b = 14.2, c = 7.86, Z = 4; V = 1,078.17 Den(Calc)= 3.78
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmnb
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.74(1), 7.1(1), 3.239(0.7),
Click Here for Large Poughite Structure Window Crystal Structure:

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drag2 - RMB Resize/Rotate
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Pertlik F , Tschermaks Mineralogische und Petrographische Mitteilungen , 15 (1971) p.279-290, Die kristallstruktur von poughit, Fe2[TeO3]2[SO4]*3H2O, Locality: synthetic

 

Physical Properties of Poughite

Help on Cleavage: Cleavage: {010} Perfect, {101} Good
Help on Color: Color: Brownish yellow, Greenish yellow, Dark yellow.
Help on Density: Density: 3.75
Help on Habit: Habit: Botryoidal - "Grape-like" rounded forms (e.g.. malachite).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light yellow
 

Optical Properties of Poughite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.187 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.178 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2377,KPDmeas= 0.2396,KC= 0.2018
Ncalc = 1.76
Help on Optical Data: Optical Data: Biaxial (-), a=1.72, b=1.985, g=1.99, bire=0.2700, 2V(Calc)=14, 2V(Meas)=15-20.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): pale greenish yellow.
Help on Pleochroism (z): Pleochroism (z): pale yellow.
 

Calculated Properties of Poughite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.48 gm/cc
note: Specific Gravity of Poughite =3.78 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEPoughite = 144.98 barns/electron
U=PEPoughite x rElectron Density= 504.21 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Poughite is Not Radioactive
 

Poughite Classification
Help on Dana Class: Dana Class: 34.08.01.01 (34)Selenites - Tellurites - Sulfites
  (34.08)Dana Type
  (34.08.01)Dana Group
 
34.08.01.01 Poughite Fe2(TeO3)2(SO4)•3(H2O) Pmnb 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 04.JN.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.J - Arsenites, Antimonites, Bismuthites, Sulfites,
  04.JN -Tellurites with additional anions, with H2O
 
04.JN.10 Poughite Fe2(TeO3)2(SO4)•3(H2O) Pmnb 2/m 2/m 2/m
 

Other Poughite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Poughite :
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

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Ask about Poughite here :
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Print or Cut-and-Paste your Poughite Specimen Label here :

Poughite

Fe+++2(TeO3)2(SO4)•3(H2O)
Dana No: 34.08.01.01 Strunz No: 04.JN.10
Locality:

 

Notes: