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Isolueshite

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Isolueshit
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Isolueshit
Bildbreite: 1,3 mm; Fundort: Kirovskii-Apatit-Mine, Kukisvumchorr, Khibiny, Kola-Halbinsel, Murmansk, Russland
Copyright: Christian Rewitzer; Contribution: Hg
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Chibiny (Khibiny)/Kukisvumchorr/Kirovsky Mine (Kirovskii Apatit Mine, Kirov)
Mineral: Isolueshite
Image: 1401019042
Rating: 9.5 (votes: 2)
License: Usage for Mineralienatlas project only
Isolueshit

Bildbreite: 1,3 mm; Fundort: Kirovskii-Apatit-Mine, Kukisvumchorr, Khibiny, Kola-Halbinsel, Murmansk, Russland
Copyright: Christian Rewitzer
Contribution: Hg 2014-05-25
Locality: Kirovsky Mine (Kirovskii Apatit Mine, Kirov) / Kukisvumchorr / Chibiny (Khibiny) / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color bläulich mit rötlich-braun internen Reflektionen
Streak color blass gelb
Hardness (Mohs) 5.5
Cleavages keine
Fracture uneben
Solubility - HCl
Crystal System kubisch, Pm3m

Chemism

Chemical formula

Na(Nb,Ti)O3

Chemical composition

Natrium, Niob, Titan, Sauerstoff

Unit weight: 152.6346217 u; Number of atoms in the formula: 5

Info

Empirical formula:

Na(Nb0.75Ti0.25)O3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

31.45

3

60.00

15.9994300

47.9982900
Sodium

Na

15.06

1

20.00

22.9897702

22.9897702
Titanium

Ti

7.84

0.25

5.00

47.8671000

11.9667750
Niobium

Nb

45.65

0.75

15.00

92.9063820

69.6797865

Analysis wt%

Na2O : 12.82, CaO : 2.25, SrO : 2.02, La2O3 : 7.80, Ce2O3 : 5.07, ThO2 : 2.41, TiO2 : 21.08, Nb2O5 : 44.23, Ta2O5 : 0.79, Ln2O3 : 13.40 (Ref: European Journal of Mineralogy 97)

Strunz 9th edition incl. updates

4.CC.35

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
C: Metall: Sauerstoff = 2: 3,3: 5, und vergleichbare
C: Mit großen und mittelgroßen Kationen
35:Loparit-Macedonit-Gruppe

Lapis Classification

IV/C.10-055

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
10: Perowskit-Reihe

Classification by Hölzel

4.CF.210

4: OXIDES
C: R2O3 Sesquioxides
F: Perovskite-Group

Dana 8th edition

04.03.03.06

04: Oxide Minerals
03: Simple Oxides with a cation charge of 3+ (A+++2 O3)
03: Perovskite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Perovskite supergroup  ⇒ Stoichiometric perovskites  ⇒ Perovskite subgroup

Optical Properties

Color

bläulich mit rötlich-braun internen Reflektionen

Streak color

blass gelb

Diaphaneity (Transparency)

opak bis teilweise durchscheinend

RI value α / ω / n

2.20

Ri mean

2.20

2V angle

Isotropisch

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

221

Space Group

Pm3m

Cell parameters a (Å)

3.911

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

1

Volume (ų)

59.822

X-Ray Powder Diffraction

3.915(30),
2.765(100),
1.953(50),
1.747(10),
1.594(30),
1.380(20),
1.234(10),
1.042(10)
XRD chart Isolueshite

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)

5.5

VHN (Hardness Vickers)

580 (70g)

Density (g/cm³)

4.72

4.237 ( ρ calc. Mineralienatlas )

Cleavages

keine

Fracture

uneben

Tenacity

spröde

Instability

- HCl

(Co-)Type locality

(Co-)Type locality

Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Chibiny (Khibiny)/Kukisvumchorr/Kirovsky Mine (Kirovskii Apatit Mine, Kirov)

Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Chibiny (Khibiny)/Kukisvumchorr

Preface

Author (Name, Year)

Chakhmouradian & Yakovenchuk & Mitchell & Bogdanova, 1997

References

European Journal of Mineralogy 9 (1997), 483

IMA group assignments

Other languages

German

Isolueshit

Spanish

Isolueshita

French

Isolueshite

English

Isolueshite

Russian

Изолуешит

CNMNC (IMA)-Number

IMA 1995-024

CNMNC symbol

Symbol

Isl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 1J-VML6R00aVrSlXhPc90A
GUID (Global unique identifier) 30959FD4-91BE-46D3-95AD-295784F73DD0
Database ID 1746