Nierite Mineral Data + 
|
- 1.3.10.1 Nierite Si3N4 P 31c 3m
- I/A.10-10 Osbornite TiN F m3m 4/m 3 2/m
- I/A.10-20 Carlsbergite CrN F m3m 4/m 3 2/m
- I/A.10-30 Roaldite (Fe,Ni)4N P 43m 4 3m
- I/A.10-40 Siderazot Fe5N2 P 6322 6 2 2
- I/A.10-45 Nierite Si3N4 P 31c 3m
- I/A.10-50 Sinoite Si2N2O C mc21 mm2
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. | ||
| Synonym: |
ICSD 34096 | ||
| IMA1994-032 | |||
| PDF 41-360 | |||
Search for Nierite Images | |||
|
Images:
|
|
||
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 PyramidalH-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 | ||
| Diaphaniety: |
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: |
relectron=3.19 gm/cc |
||
| Fermion Index |
Fermion Index = 0.42595 Boson Index = 0.57405 |
||
| Photoelectric: |
PENierite = 2.12 barns/electron |
||
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Nierite is Not Radioactive |
||
Nierite Classification |
|||
| Dana Class: |
1.3.10.1 (1)Native Elements | ||
| (1.3)with semi-metallic and non-metallic elements | |||
| (1.3.10)Dana Group | |||
| Strunz Class: |
I/A.10-45 I - Elements | ||
| I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides | |||
| I/A.10 - Osbornite-Sinoite series | |||
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 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas Search for Nierite using: Visit our Advertisers for Nierite : Translate Nierite Mineral Data : Ask about Nierite here : Print or Cut-and-Paste your Nierite Specimen Label here :
|
||
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |