Natisite Mineral Data + 
|
[Mineral Specimens] [Mineral Locations] [About Us] [Search] [Register]
Greenside Minerals
Newest website on the Internet for top quality, affordable minerals from around the World
We specialize in minerals from the UK and Ireland
- 52.4.4.1 Natisite Na2(TiO)SiO4 P 4/nmm 4/m 2/m 2/m
- 52.4.4.2 Paranatisite Na2[TiO(SiO4)] P mc21 mm2
- 52.4.4.3 Yftisite-(Y)? (Y,Dy,Er)4(Ti,Sn)O(SiO4)2(F,OH)6 C mcm 2/m 2/m 2/m
- VIII/B.13-05 Paranatisite Na2[TiO(SiO4)] P mc21 mm2
- VIII/B.13-10 Natisite Na2(TiO)SiO4 P 4/nmm 4/m 2/m 2/m
General Natisite Information |
|||
 Chemical Formula: |
Na2(TiO)SiO4 | ||
| Composition: |
Molecular Weight = 201.94 gm | ||
| Sodium 22.77 % Na 30.69 % Na2O | |||
| Titanium 23.71 % Ti 39.56 % TiO2 | |||
| Silicon 13.91 % Si 29.75 % SiO2 | |||
| Oxygen 39.61 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Na2TiSiO5 | ||
| IMA Status: |
Approved IMA 1975 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 1533 | ||
| PDF 29-1279 | |||
Search for Natisite Images | |||
|
Images:
|
|
||
Natisite Crystallography |
|||
| Axial Ratios: |
a:c = 1:0.78 | ||
| Cell Dimensions: |
a = 6.5, c = 5.07, Z = 2; V = 214.21 Den(Calc)= 3.13 | ||
| Crystal System: |
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4/nmm | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.709(1), 5.05(0.8), 1.689(0.7), | ||
Physical Properties of Natisite |
|||
| Cleavage: |
[001] Perfect, [100] Good | ||
| Color: |
Greenish gray, Yellow green. | ||
| Density: |
3.15 | ||
| Hardness: |
3-4 - Calcite-Fluorite | ||
| Luster: |
Vitreous - Adamantine | ||
| Streak: |
white | ||
Optical Properties of Natisite |
|||
| Gladstone-Dale: |
CI meas= 0.173 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= 0.168 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2294,KPDmeas= 0.2279,KC= 0.2757 |
||
| Optical Data: |
Uniaxial (-), e=1.68, w=1.756, bire=0.0760. | ||
Calculated Properties of Natisite |
|||
| Electron Density: |
relectron=3.04 gm/cc |
||
| Fermion Index |
Fermion Index = 0.03734 Boson Index = 0.96266 |
||
| Photoelectric: |
PENatisite = 4.79 barns/electron |
||
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Natisite is Not Radioactive |
||
Natisite Classification |
|||
| Dana Class: |
52.4.4.1 (52)Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O | ||
| (52.4)with cations in [6] and/or > [6] coordination | |||
| (52.4.4)Natisite - Yftisite group | |||
| Strunz Class: |
VIII/B.13-10 VIII - Silicates | ||
| VIII/B - Nesosubsilicates, with anions unfamiliar to tetraheders, cationes with coordinationnumber between [8] and [12] | |||
| VIII/B.13 - Natisite series | |||
Other Natisite Information |
|||
| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Natisite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Natisite using: Visit our Advertisers for Natisite : Translate Natisite Mineral Data : Ask about Natisite here : Print or Cut-and-Paste your Natisite Specimen Label here :
|
||
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |