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Nordite-(La) (Nordit-(La))

Pictures (1 Images total)

tafeliger Nordit-(La)-Kristall
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tafeliger Nordit-(La)-Kristall
mit Magnesioarfvedsonit und Natrolith; Bildbreite: 12 mm; Fundort: Kirovskii, Kukisvumchorr, Khibiny, Kola, Russland
Copyright: Pavel M. Kartashov; Contribution: slugslayer
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Chibiny (Khibiny)/Kukisvumchorr/Kirovsky Mine (Kirovskii Apatit Mine, Kirov)
Mineral: Nordite-(La)
Image: 1244877248
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
tafeliger Nordit-(La)-Kristall

mit Magnesioarfvedsonit und Natrolith; Bildbreite: 12 mm; Fundort: Kirovskii, Kukisvumchorr, Khibiny, Kola, Russland

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-13
Locality: Kirovsky Mine (Kirovskii Apatit Mine, Kirov) / Kukisvumchorr / Chibiny (Khibiny) / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color hellbraun, dunkelbraun, schwärzlich braun
Streak color hellbraun
Lustre Glasglanz, Fettglanz
Hardness (Mohs) 5
Cleavages gut {100}
Fracture uneben, muschelig
Solubility +++ Säuren
Crystal System orthorhombisch, Pcca

Chemism

Chemical formula

Na3SrLaZnSi6O17

Chemical composition

Lanthanum, Natrium, Silicium, Strontium, Zink, Sauerstoff

Unit weight: 801.4087206 u; Number of atoms in the formula: 29

Info

Empirical formula:

Na3SrLaZnSi6O17

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

33.94

17

58.62

15.9994300

271.9903100

Sodium

Na

8.61

3

10.34

22.9897702

68.9693106

Silicon

Si

21.03

6

20.69

28.0855300

168.5131800

Zinc

Zn

8.16

1

3.45

65.4094000

65.4094000

Strontium

Sr

10.93

1

3.45

87.6210000

87.6210000

Lanthanum

La

17.33

1

3.45

138.9055200

138.9055200

Analysis wt%

SiO2 : 45.07, Ce2O3 : 9.38, La2O3 : 11.53, Fe2O3 : 1.15, FeO : 2.12, MnO : 3.29, MgO : 1.66, ZnO : 3.90, CaO : 3.74, SrO : 7.11, Na2O : 11.20, Ln2O3 : 20.91 (Ref: Tr.Min.61,AM70)

Strunz 9th edition incl. updates

9.DO.15

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
O: Ketten- und Bandsilikate mit 7-,8-,10-,12-und 14-periodischen Ketten
15:Nordit-Gruppe

Lapis Classification

VIII/G.03-020

VIII: SILIKATE
G: Übergangsstrukturen zwischen Ketten- und Schichtsilikaten

Classification by Hölzel

9.DN.160

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
N: ~[Si6O17]10--...~[Si6O15]6--...3-Band Xonotlite-Group

Dana 8th edition

72.05.02.03

72: Phyllosilicates Phyllosilicate Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
05: Phyllosilicates Phyllosilicate Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with corrugated and complex layers
02: Leucospenite and related species

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Nordite supergroup  ⇒ Nordite group

Optical Properties

Color

hellbraun, dunkelbraun, schwärzlich braun

Streak color

hellbraun

Diaphaneity (Transparency)

durchscheinend

Lustre

Glasglanz, Fettglanz

max. Birefringence

0.023

Birefringence chart\! Nordite-(La) title=Birefringence chart Nordite-(La)

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.619 - 1.620

RI value β

1.630 - 1.640

RI value γ / ε

1.642 - 1.644

Ri mean

1.633

2V angle

Biaxial (-) 31° - 32° (gemessen)

Orientation

X = a; Y = b; Z = c

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

54

Space Group

Pcca

Cell parameters a (Å)

14.27

Cell parameters b (Å)

5.16

Cell parameters c (Å)

19.45

Cell parameters a/b or c/a

2.766

Cell parameters c/b

3.769

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

1432.166

X-Ray Powder Diffraction

7.25(40),
4.22(90),
3.48(40),
3.33(100),
2.96(90),
2.876(90),
2.596(70),
2.443(40)

XRD chart Nordite-(La)

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5

VHN (Hardness Vickers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.43 (gemessen) 3.51 (berechnet)

3.717 ( ρ calc. Mineralienatlas )

Cleavages

gut {100}

Fracture

uneben, muschelig

Tenacity

spröde

Instability

+++ Säuren

Preface

Author (Name, Year)

Gerasimovskiy, 1941

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 588

IMA group assignments


 
 
 
 
 

 
 
 
Na3(Sr,Ca)(Fe2+,Mn2+)(Ce,La)[Si6O17]
orthorhombisch
Pcca

 
 
 
Na3Sr(La,Ce)Fe[Si6O17]
orthorhombisch
Pcca

 
 
 
Na2NaBaCeZnSi6O17
orthorhombisch
Pcca

 
 
 
Na3(Sr,Ca)(Mn2+,Fe2+)(Ce,La)[Si6O17]
orthorhombisch
Pcca

 
 
 
(Ce,La)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17
orthorhombisch
Pcca

 
 
 
Na3SrLaZnSi6O17
orthorhombisch
Pcca

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Actuality: 18. Apr 2024 - 10:43:58

Other languages

German

Nordit-(La)

Spanish

Nordita-(La)

French

Nordite-(La)

English

Nordite-(La)

Russian

Нордит-(La)

Traditional Chinese

矽鈉鍶鑭石

Simplified Chinese

硅钠锶镧石

Japanese

ランタンノルダイト

CNMNC symbol

Symbol

Nor-La

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Mpnc4zv_UkyGx6k9UtIKwg
GUID (Global unique identifier) E3DC9932-FF3B-4C52-86C7-A93D52D20AC2
Database ID 2779