| |
 |
Nierite Mineral Data
|
|
|
General Nierite Information
|
 Chemical Formula: |
Si3N4 |
| Composition: |
Molecular Weight = 140.28 gm |
| |
Silicon 60.06 % Si |
| |
Nitrogen 39.94 % N |
| |
______ |
| |
100.00 % |
| Empirical Formula: |
Si3N4 |
| Environment: |
The grains probably formed by exsolution of Si and N from kamacite, perryite and schreibersite during parent-body metamorphism. |
| IMA Status: |
Approved IMA 1995 |
| Locality: |
In perchloric acid-resistant residues of three ordinary chondrite meteorites and one enstatite meteorite. Link to MinDat.org Location Data. |
| Name Origin: |
For A. O. Nier (1912-1994), who was responsible for the now accepted measurement of the atmospheric N-isotope composition. |
| Name Pronunciation: |
Nierite  |
| Synonym: |
ICSD 34096 |
| |
IMA1994-032 |
| |
PDF 41-360 |
| |
Nierite Crystallography
|
| Axial Ratios: |
a:c = 1:0.7248 |
| Cell Dimensions: |
a = 7.74, c = 5.61, Z = 4; V = 291.06 Den(Calc)= 3.20 |
| Crystal System: |
Trigonal - Ditrigonal Pyramidal H-M Symbol (3m) Space Group: P 31c |
| X Ray Diffraction: |
By Intensity(I/Io): 2.55(1), 2.89(0.9), 2.6(0.8),2.32(0.6), 2.08(0.5), 4.32(0.5), 3.37(0.3), 3.88(0.3), |
| |
Physical Properties of Nierite
|
| Cleavage: |
None |
| Color: |
Colorless, Brown, Brownish red. |
| Density: |
3.17 - 3.18, Average = 3.17 |
| Diaphaneity: |
Transparent |
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Habit: |
Tabular - Form dimensions are thin in one direction. |
| Hardness: |
9 - Corundum |
| Luster: |
Adamantine |
| Streak: |
white |
| |
Optical Properties of Nierite
|
| Optical Data: |
Uniaxial (-), e=2.02, w=2.03, bire=0.0100. |
| |
Calculated Properties of Nierite
|
| Electron Density: |
Bulk Density (Electron Density)=3.19 gm/cc
note: Specific Gravity of Nierite =3.20 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.42
Boson Index = 0.58 |
| Photoelectric: |
PENierite = 2.12 barns/electron
U=PENierite x rElectron Density= 6.76 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nierite is Not Radioactive |
| |
Nierite Classification
|
| Dana Class: |
01.03.10.01 (01)Native Elements |
| |
(01.03)with semi-metallic and non-metallic elements |
| |
(01.03.10)Dana Group |
| |
01.03.10.01 Nierite Si3N4 P 31c 3m |
| Strunz Class: |
01.DB.05 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides) |
| |
01.D - Nonmetallic Carbides and Nitrides |
| |
01.DB -Nonmetallic nitrides |
| |
01.DB.05 Nierite Si3N4 P 31c 3m |
| |
Other Nierite Information
|
| References: |
NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,1996) OPTIC PROP.(MinRec) |
| See Also: |
Links to other databases for Nierite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info
Search for Nierite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Nierite :
Ask about Nierite 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 Nierite Specimen Label here :
|
Nierite
Si3N4
Dana No: 01.03.10.01 Strunz No: 01.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.