| |
 |
Froodite Mineral Data
|
|
|
General Froodite Information
|
 Chemical Formula: |
PdBi2 |
| Composition: |
Molecular Weight = 524.38 gm |
| |
Bismuth 79.71 % Bi |
| |
Palladium 20.29 % Pd |
| |
______ |
| |
100.00 % |
| Empirical Formula: |
PdBi2 |
| Environment: |
In mill concentrates of As- and Pb-Cu-rich ores. |
| IMA Status: |
Valid Species (Pre-IMA) 1958 |
| Locality: |
Frood, Creighton and Coleman mines, Sudbury, Ontario. Link to MinDat.org Location Data. |
| Name Origin: |
For the Frood mine in Canada, in which it occurs. |
| Name Pronunciation: |
Froodite  |
| Synonym: |
ICSD 42565 |
| |
PDF 27-436 |
| |
Froodite Image |
|
Images:
|
|
|
Images:
|
|
Froodite Crystallography
|
| Axial Ratios: |
a:b:c =2.972:1:1.3216 |
| Cell Dimensions: |
a = 12.75, b = 4.29, c = 5.67, Z = 4; beta = 102.867° V = 302.35 Den(Calc)= 11.52 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 2.77(1), 1.556(0.8), 2.97(0.7), |
| |
Physical Properties of Froodite
|
| Cleavage: |
{001} Perfect, {100} Good |
| Color: |
Gray. |
| Density: |
12.5 - 12.6, Average = 12.55 |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
| Hardness: |
2.5 - Finger Nail |
| Luster: |
Metallic |
| Streak: |
black |
| |
Optical Properties of Froodite
|
| RL Anisotrophism: |
Evident, in light and dark grays. |
| RL Color: |
Creamy white. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Froodite in Air
| λ |
R1 |
R2 |
 |
∑ R1(λ) |
∑ R2(λ) |
| 420 nm |
50.70 |
52.90 |
|
|
|
| 440 nm |
51.90 |
54.30 |
|
| 460 nm |
53.10 |
55.50 |
|
| 480 nm |
54.30 |
56.40 |
|
| 500 nm |
55.20 |
57.20 |
|
| 520 nm |
55.70 |
57.80 |
|
| 540 nm |
56.10 |
58.40 |
|
| 560 nm |
56.50 |
59.00 |
|
| 580 nm |
56.90 |
59.60 |
|
| 600 nm |
57.40 |
60.20 |
|
| 620 nm |
57.70 |
60.70 |
|
| 640 nm |
58.00 |
61.10 |
|
| 660 nm |
58.50 |
61.40 |
|
| 680 nm |
58.80 |
62.00 |
|
| 700 nm |
59.30 |
63.00 |
|
Calculated Relative Intensity Colors of Froodite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
170% |
| R1 |
|
|
|
|
|
|
|
|
|
|
| R2 |
|
|
|
|
|
|
|
|
|
|
|
| |
Calculated Properties of Froodite
|
| Electron Density: |
Bulk Density (Electron Density)=9.31 gm/cc
note: Specific Gravity of Froodite =11.5 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.04
Boson Index = 0.96 |
| Photoelectric: |
PEFroodite =1,638.85 barns/electron
U=PEFroodite x rElectron Density=15265.45 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Froodite is Not Radioactive |
| |
Froodite Classification
|
| Dana Class: |
02.12.15.01 (02)Sulfides - Including Selenides and Tellurides |
| |
(02.12)where Am Bn Xp, with (m+n):p=1:2 |
| |
(02.12.15)Dana Group |
| |
02.12.15.01 Froodite PdBi2 C 2/m 2/m |
| |
02.12.15.02 Urvantsevite Pd(Bi,Pb)2 I 4/mmm 4/m 2/m 2/m |
| |
02.12.15.03 Verbeekite! PdSe2 C 2, Cm, or C 2/m Mono |
| Strunz Class: |
02.AC.45a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
| |
02.A - Simple Sulfides, Selenides, etc |
| |
02.AC -Alloys of metalloids with PGE |
| |
02.AC.45a Froodite PdBi2 C 2/m 2/m |
| |
Other Froodite Information
|
| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Froodite :
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 Froodite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Froodite :
Ask about Froodite 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
Espaņol
Print or Cut-and-Paste your Froodite Specimen Label here :
|
Froodite
PdBi2
Dana No: 02.12.15.01 Strunz No: 02.AC.45a
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.
