|
|
Argutite Mineral Data
|
|
|
General Argutite Information
|
Chemical Formula: |
GeO2 |
Composition: |
Molecular Weight = 104.61 gm |
|
Germanium 69.41 % Ge 100.00 % GeO2 |
|
Oxygen 30.59 % O |
|
______ ______ |
|
100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
GeO2 |
Environment: |
In a zinc deposit formed in metamorphosed lower Paleozoic sediments. |
IMA Status: |
Approved IMA 1983 |
Locality: |
From the Argut deposit, central Pyrenees, Haute-Garonne, France. Link to MinDat.org Location Data. |
Name Origin: |
Named for the locality. |
Name Pronunciation: |
Argutite |
Synonym: |
ICSD 9162 |
|
PDF 35-729 |
|
Argutite Image |
Images:
|
|
Argutite
Comments: Sub microscopic grains of argutite invisible to the eye within sphalerite.
Location: Rimbatz, Argut-Dessus, Haute-Garonne, Midi-Pyrénées, France.
Scale: Thumbnail 2.5 x 2 x 1.5 cm.
© Tom Loomis / Dakota Matrix |
|
Argutite Crystallography
|
Axial Ratios: |
a:c = 1:0.65113 |
Cell Dimensions: |
a = 4.3963, c = 2.8626, Z = 2; V = 55.33 Den(Calc)= 6.28 |
Crystal System: |
Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/mnm |
X Ray Diffraction: |
By Intensity(I/Io): 3.11(1), 2.4(0.6), 1.62(0.5), |
|
Physical Properties of Argutite
|
Color: |
Grayish black. |
Diaphaneity: |
Transparent to Opaque |
Luster: |
Vitreous - Adamantine |
|
Optical Properties of Argutite
|
Gladstone-Dale: |
CI calc= 0.037 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1608,KC= 0.167 Ncalc = 2.05 |
Optical Data: |
Uniaxial (+), w=2.01, e=2.01, bire=0.0000. |
RL Anisotrophism: |
Distinct. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Argutite in Air
λ |
R |
|
∑ R(λ) |
400 nm |
14.80 |
|
|
420 nm |
13.70 |
|
440 nm |
12.60 |
|
460 nm |
11.60 |
|
480 nm |
11.20 |
|
500 nm |
11.00 |
|
520 nm |
11.00 |
|
540 nm |
11.00 |
|
560 nm |
11.00 |
|
580 nm |
10.90 |
|
600 nm |
10.90 |
|
620 nm |
10.90 |
|
640 nm |
10.90 |
|
660 nm |
10.90 |
|
680 nm |
11.00 |
|
700 nm |
11.00 |
|
Calculated Relative Intensity Colors of Argutite in Air
Relative Intensity |
0% |
80% |
100% |
160% |
240% |
320% |
400% |
480% |
560% |
640% |
720% |
800% |
R |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Calculated Properties of Argutite
|
Electron Density: |
Bulk Density (Electron Density)=5.76 gm/cc note: Specific Gravity of Argutite =6.28 gm/cc. |
Fermion Index: |
Fermion Index = 0.05 Boson Index = 0.95 |
Photoelectric: |
PEArgutite = 43.84 barns/electron U=PEArgutite x rElectron Density= 252.65 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Argutite is Not Radioactive |
|
Argutite Classification
|
Dana Class: |
04.04.01.07 (04)Simple Oxides |
|
(04.04)with a cation charge of 4+ (A++++ O2) |
|
(04.04.01)Rutile group (Tetragonal: P4/mnm) |
|
04.04.01.01 Rutile TiO2 P 4/mnm 4/m 2/m 2/m |
|
04.04.01.02 Ilmenorutile (Ti,Nb,Fe)O2 P 4/mnm 4/m 2/m 2/m |
|
04.04.01.03 Struverite? (Ti,Ta,Fe)O2 P 4/mnm 4/m 2/m 2/m |
|
04.04.01.04 Pyrolusite MnO2 P 4/mnm 4/m 2/m 2/m |
|
04.04.01.05 Cassiterite SnO2 P 4/mnm 4/m 2/m 2/m |
|
04.04.01.06 Plattnerite PbO2 P 4/mnm 4/m 2/m 2/m |
|
04.04.01.07 Argutite GeO2 P 4/mnm 4/m 2/m 2/m |
|
04.04.01.08 Squawcreekite? (Fe,Sb,W)O4•(H2O) P 4/mnm 4/m 2/m 2/m |
|
04.04.01.09 Stishovite SiO2 P 4/mnm 4/m 2/m 2/m |
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 Argutite Information
|
References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3) |
See Also: |
Links to other databases for Argutite :
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
15 - WWW-MINCRYST
Search for Argutite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Argutite :
Ask about Argutite 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 Argutite Specimen Label here :
Argutite
GeO2
Dana No: 04.04.01.07 Strunz No: 04.DB.05
Locality:
Notes:
|
|
|
|
|
|
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.