Paraguanajuatite Mineral Data (original) (raw)
General Paraguanajuatite Information
Bi2(Se,S)3
Molecular Weight = 691.82 gm
Bismuth 60.41 % Bi
Selenium 25.68 % Se
Sulfur 13.91 % S
______
100.00 %
Bi2Se2.25S3
Intergrown with guanajuatite in contact metamorhpic as wall as in hydrothermal veins.
Valid Species (Pre-IMA) 1948
Santa Catarina mine, Sierra de Santa Rosa, Guanajuato, Mexico. Link to MinDat.org Location Data.
Named for the supposed relationship to guanajuatite.
Paraguanajuatite + Pronunciation
ICSD 20385
PDF 33-214
Paraguanajuatite Image
Paraguanajuatite Crystallography
a:c = 1:6.92363
a = 4.125, c = 28.56, Z = 3; V = 420.86 Den(Calc)= 8.19
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m
By Intensity(I/Io): 3.03(1), 2.23(0.6), 1.404(0.4),
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
| | Nakajima S , Journal of Physics and Chemistry of Solids , 24 (1963) p.479-485, The crystal structure of Bi2Te3-xSex, Locality: synthetic | | ------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Paraguanajuatite
{0001} Perfect
Lead gray, Yellowish white.
6.6
Opaque
Flexible - Flexible fragments.
Inclusions - Generally found as inclusions in other minerals.
2.5-3 - Finger Nail-Calcite
Metallic
gray
Optical Properties of Paraguanajuatite
Distinct.
Distinct in air.
Standardized Intensity (100%) Reflection Spectra of Paraguanajuatite in Air
λ | R1 | R 2 | ∑ R1(λ) | ∑ R2(λ) | |
---|---|---|---|---|---|
400 nm | 47.00 | 51.70 | |||
420 nm | 48.10 | 52.60 | |||
440 nm | 49.20 | 53.50 | |||
460 nm | 50.00 | 54.20 | |||
480 nm | 50.50 | 54.60 | |||
500 nm | 50.90 | 55.00 | |||
520 nm | 51.10 | 55.10 | |||
540 nm | 51.00 | 55.00 | |||
560 nm | 50.80 | 54.60 | |||
580 nm | 50.50 | 54.20 | |||
600 nm | 50.00 | 53.70 | |||
620 nm | 49.50 | 53.00 | |||
640 nm | 48.80 | 52.20 | |||
660 nm | 48.20 | 51.50 | |||
680 nm | 47.40 | 50.60 | |||
700 nm | 46.50 | 49.80 |
Calculated Relative Intensity Colors of Paraguanajuatite in Air
RelativeIntensity | 0% | 20% | 40% | 60% | 80% | 100% | 120% | 140% | 160% | 180% |
---|---|---|---|---|---|---|---|---|---|---|
R1 | ||||||||||
R2 |
Calculated Properties of Paraguanajuatite
Bulk Density (Electron Density)=6.88 gm/cc
note: Specific Gravity of Paraguanajuatite =8.19 gm/cc.
Fermion Index = 0.02
Boson Index = 0.98
PEParaguanajuatite =1,180.03 barns/electron
U=PEParaguanajuatite x rElectron Density=8,116.32 barns/cc.
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Paraguanajuatite is Not Radioactive
Paraguanajuatite Classification
02.11.07.04 (02)Sulfides - Including Selenides and Tellurides
(02.11)where Am Bn Xp, with (m+n):p=2:3
(02.11.07)Tetradymite Group (Trigonal: R-3m)
02.11.07.01 Tetradymite Bi2Te2S R 3m 3 2/m
02.11.07.02 Tellurobismuthite Bi2Te3 R 3m 3 2/m
02.11.07.03 Tellurantimony Sb2Te3 R 3m 3 2/m
02.11.07.04 Paraguanajuatite Bi2(Se,S)3 R 3m 3 2/m
02.11.07.05 Kawazulite Bi2(Te,Se,S)3 R 3m 3 2/m
02.11.07.06 Skippenite Bi2Se2(Te,S) R 3m 3 2/m
02.11.07.07 Vihorlatite! Bi24Se17Te4 P 3m1 3 2/m
02.DC.05c 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
02.D - Metal Sulfides, M:S = 3:4 and 2:3
02.DC -Variable M:S
02.DC.05c Kawazulite Bi2(Te,Se,S)3 R 3m 3 2/m
02.DC.05c Paraguanajuatite Bi2(Se,S)3 R 3m 3 2/m
02.DC.05c Skippenite Bi2Se2(Te,S) R 3m 3 2/m
02.DC.05c Tetradymite Bi2Te2S R 3m 3 2/m
02.DC.05c Tellurantimony Sb2Te3 R 3m 3 2/m
02.DC.05c Tellurobismuthite Bi2Te3 R 3m 3 2/m
Other Paraguanajuatite Information
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Links to other databases for Paraguanajuatite :
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
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Ask about Paraguanajuatite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
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Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol
Print or Cut-and-Paste your Paraguanajuatite Specimen Label here :
Paraguanajuatite
Bi2(Se,S)3
Dana No: 02.11.07.04 Strunz No: 02.DC.05c
Locality:
Notes: