Zemannite Mineral Data (original) (raw)

General Zemannite Information

Help on Chemical Formula: Chemical Formula:

Mg0.5[Zn++Fe+++(TeO3)3]•4.5(H2O)

Help on Composition: Composition:

Molecular Weight = 741.25 gm

Magnesium 1.64 % Mg 2.72 % MgO

Zinc 8.82 % Zn 10.98 % ZnO

Iron 7.53 % Fe 10.77 % Fe2O3

Tellurium 51.64 % Te 64.59 % TeO2

Hydrogen 1.22 % H 10.94 % H2O

Oxygen 29.14 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Mg0.5ZnFe3+(TeO3)3•4.5(H2O)

Help on Environment: Environment:

Secondary mineal assoiated with other tellurium oxysalts.

Help on IMA Status: IMA Status:

Approved IMA 1969

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 Josef Zemann (1923-), Austrian mineralogist, University of Vienna, who studied tellurium oxysalts.

Help on Name Pronunciation: Name Pronunciation:

Zemannite + Pronunciation Say ZEMANNITE

Help on Synonym: Synonym:

ICSD 79849

PDF 31-1310

Zemannite Image

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

Zemannite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:0.8119

Help on Cell Dimensions: Cell Dimensions:

a = 9.41, c = 7.64, Z = 2; V = 585.87 Den(Calc)= 4.20

Help on Crystal System: Crystal System:

Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 63/m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 8.15(1), 2.778(0.9), 4.07(0.8),

Click Here for Large Zemannite 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

| | Miletich F , European Journal of Mineralogy , 7 (1995) p.509-523, Crystal chemistry of the microporous tellurite minerals View Additional jPOWD Structure files for Zemannite [1] | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

Physical Properties of Zemannite

Help on Cleavage: Cleavage:

None

Help on Color: Color:

Light brown, Dark brown.

Help on Density: Density:

4.05

Help on Habit: Habit:

Acicular - Occurs as needle-like crystals.

Help on Habit: Habit:

Hexagonal - Six-sided crystal shape in cross-section or habit.

Help on Habit: Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Help on Luster: Luster:

Vitreous - Adamantine

Optical Properties of Zemannite

Help on Dichroism (e): Dichroism (e):

reddish brown.

Help on Dichroism (w): Dichroism (w):

yellowish brown.

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.053 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2119,KPDmeas= 0.2198,KC= 0.2237
Ncalc = 1.91 - 1.94

Help on Optical Data: Optical Data:

Uniaxial (+), w=1.85, e=1.93, bire=0.0800.

Calculated Properties of Zemannite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.66 gm/cc
note: Specific Gravity of Zemannite =4.05 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.04
Boson Index = 0.96

Help on Photoelectric: Photoelectric:

PEZemannite = 182.48 barns/electron
U=PEZemannite x rElectron Density= 668.00 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zemannite is Not Radioactive

Zemannite Classification

Help on Dana Class: Dana Class:

34.03.02.01 (34)Selenites - Tellurites - Sulfites

(34.03)Dana Type

(34.03.02)Zemannite Group

34.03.02.01 Zemannite Mg0.5[ZnFe(TeO3)3]•4.5(H2O) P 63/m 6/m

34.03.02.02 Kinichilite Mg0.5[MnFe(TeO3)3]•4.5(H2O) P 63/m 6/m

34.03.02.03 Keystoneite Mg0.5[NiFe(TeO3)3]•4.5(H2O) P 63/m 6/m

Help on Strunz Class: Strunz Class:

04.JM.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JM -Tellurites without additional anions, with H2O

04.JM.05 Keystoneite Mg0.5[NiFe(TeO3)3]•4.5(H2O) P 63/m 6/m

04.JM.05 Kinichilite Mg0.5[MnFe(TeO3)3]•4.5(H2O) P 63/m 6/m

04.JM.05 Zemannite Mg0.5[ZnFe(TeO3)3]•4.5(H2O) P 63/m 6/m

Other Zemannite 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 Zemannite :
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 Zemannite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Zemannite :

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

Ask about Zemannite 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 Espa�ol

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

Zemannite

Mg0.5[Zn++Fe+++(TeO3)3]•4.5(H2O)
Dana No: 34.03.02.01 Strunz No: 04.JM.05
Locality:

Notes: