Niggliite Mineral Data (original) (raw)
General Niggliite Information
Chemical Formula:
PtSn
Composition:
Molecular Weight = 313.79 gm
Tin 37.83 % Sn
Platinum 62.17 % Pt
______
100.00 %
Empirical Formula:
PtSn
Environment:
In late-forming hydrothermal veins.
IMA Status:
Valid Species (Pre-IMA) 1937
Locality:
Waterfall Gorge, Insizwa, Griqualand, South Africa. Link to MinDat.org Location Data.
Name Origin:
Named for Paul Niggli (1888-1953), Professor at Zurich, Switzerland.
Name Pronunciation:
Niggliite + Pronunciation 
Synonym:
ICSD 42593
PDF 25-614
Niggliite Image
Images:
 |
Niggliite Insizwaite Comments: B&W image of a polished section showing insizwaite grain (I) showing details of niggliite (N) inclusions and exsolved chalcopyrite (C) lamellae in the pentlandite (P). (MinMag, v38:299). Location: Insizwa deposit, Waterfall Gorge, Pondoland and East Griqualand areas (Transkei), South Africa.Scale: See Image. © Mineralogical Magazine |
|---|
Niggliite Crystallography
Axial Ratios:
a:c = 1:1.32473
Cell Dimensions:
a = 4.111, c = 5.446, Z = 2; V = 79.71 Den(Calc)= 13.07
Crystal System:
Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc
X Ray Diffraction:
By Intensity(I/Io): 1.486(1), 2.05(1), 2.15(1),
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
| | Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, Note: ideal nickel arsenide structure | | ------------------------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Niggliite
Cleavage:
None
Color:
Silver white.
Density:
13.44
Diaphaneity:
Opaque
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Hardness:
3 - Calcite
Luster:
Metallic
Optical Properties of Niggliite
RL Anisotrophism:
Very high, bright pinkish cream to very dark blue or black.
RL Color:
Silver white with a pinkish to bluish tint.
RL Pleochroism:
Strong, from pinkish cream to pale cobalt blue.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Niggliite in Air
| λ | R1 | R 2 |  |
∑ R1(λ) | ∑ R2(λ) |
|---|---|---|---|---|---|
| 400 nm | 52.40 | 55.00 |  |
||
| 420 nm | 51.10 | 54.90 |  |
||
| 440 nm | 49.80 | 54.80 |  |
||
| 460 nm | 47.40 | 54.40 |  |
||
| 480 nm | 46.60 | 55.00 |  |
||
| 500 nm | 46.40 | 55.40 |  |
||
| 520 nm | 45.80 | 55.90 |  |
||
| 540 nm | 45.50 | 57.30 |  |
||
| 560 nm | 45.40 | 58.90 |  |
||
| 580 nm | 45.00 | 60.00 |  |
||
| 600 nm | 44.30 | 62.00 |  |
||
| 620 nm | 42.80 | 62.90 |  |
||
| 640 nm | 41.10 | 64.40 |  |
||
| 660 nm | 39.50 | 66.20 |  |
||
| 680 nm | 37.70 | 67.20 |  |
||
| 700 nm | 36.30 | 66.70 |  |
Calculated Relative Intensity Colors of Niggliite in Air
| RelativeIntensity | 0% | 30% | 60% | 90% | 100% | 120% | 150% | 180% | 210% |
|---|---|---|---|---|---|---|---|---|---|
| R1 | |||||||||
| R2 |
Calculated Properties of Niggliite
Electron Density:
Bulk Density (Electron Density)=10.7 gm/cc
note: Specific Gravity of Niggliite =13.1 gm/cc.
Fermion Index:
Fermion Index = 0.27
Boson Index = 0.73
Photoelectric:
PENiggliite =1,114.75 barns/electron
U=PENiggliite x rElectron Density=11886.51 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Niggliite is Not Radioactive
Niggliite Classification
Dana Class:
01.02.10.01 (01)Native Elements
(01.02)with platinum group metals and alloys
(01.02.10)Dana Group
01.02.10.01 Niggliite PtSn P 63/mmc 6/m 2/m 2/m
Strunz Class:
01.AG.60 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
01.A - Metals and Intermetallic Alloys
01.AG -PGE-metal alloys
01.AG.60 Niggliite PtSn P 63/mmc 6/m 2/m 2/m
Other Niggliite Information
References:
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
See Also:
Links to other databases for Niggliite :
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 Niggliite using:
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]
Visit our Advertisers for Niggliite :
A Bijoux Google Search for Niggliite
Adam's Minerals Google Search for Niggliite
Cape Minerals Google Search for Niggliite
Dakota Matrix Minerals Google Search for Niggliite
Excalibur Mineral Corp. Google Search for Niggliite
Exceptional Minerals Google Search for Niggliite
John Betts Fine Minerals Search for Niggliite
McDougall Minerals Google Search for Niggliite
Mineral News Website Link
Rock and Mineral Shows Google Search for Niggliite
Weinrich Minerals, Inc. Google Search for Niggliite
Ask about Niggliite 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 Niggliite Specimen Label here :
Niggliite
PtSn
Dana No: 01.02.10.01 Strunz No: 01.AG.60
Locality:
Notes: