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Lueshite

Pictures (6 Images total)

Lueshit
Views (File:
1258156988
): 1708
Lueshit
Größe: 06x06x06 mm; Fundort: Lueshe Mine, Nord-Kivu, DR Kongo
Copyright: Rob Lavinsky; Contribution: slugslayer
Location: Demokratische Republik Kongo/Nord-Kivu, Provinz/Lueshe
Mineral: Lueshite
Image: 1258156988
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Lueshit

Größe: 06x06x06 mm; Fundort: Lueshe Mine, Nord-Kivu, DR Kongo

Copyright: Rob Lavinsky
Contribution: slugslayer 2009-11-14
Locality: Lueshe / Nord-Kivu, Provinz / Demokratische Republik Kongo
Lueshit x
Views (File:
1103455121
): 1690
Lueshit x
ca. 6 mm Kantenlänge; Fundort: Lueshe Mine, Nord-Kivu, Zaire (Typlokalität)
Copyright: berthold; Contribution: Mineralienatlas
Collection: berthold
Location: Demokratische Republik Kongo/Nord-Kivu, Provinz/Lueshe
Mineral: Lueshite
Image: 1103455121
License: Usage for Mineralienatlas project only
Lueshit x

ca. 6 mm Kantenlänge; Fundort: Lueshe Mine, Nord-Kivu, Zaire (Typlokalität)

Collection: berthold
Copyright: berthold
Contribution: Mineralienatlas 2004-12-19
Locality: Lueshe / Nord-Kivu, Provinz / Demokratische Republik Kongo
Lueshit
Views (File:
1360801252
): 815
Lueshit
Bildbreite: ca. 5 mm, Fundort: Kovdor, Kola-Halbinsel, Murmansk, Russland
Copyright: Dan Weinrich; Contribution: thdun5
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Kovdor
Mineral: Lueshite
Image: 1360801252
License: Usage for Mineralienatlas project only
Lueshit

Bildbreite: ca. 5 mm, Fundort: Kovdor, Kola-Halbinsel, Murmansk, Russland

Copyright: Dan Weinrich
Contribution: thdun5 2013-02-14
Locality: Kovdor / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Lueshit von Alcala, Teneriffa
Views (File:
1555432997
): 347
Lueshit von Alcala, Teneriffa
Deformierter Würfel in Nephelin-Syenit. Begleiter sind Aegirin und Vermiculit. Bildbreite 1,5 mm
Copyright: Kurt Rüsenberg; Contribution: humboldt
Collection: humboldt
Location: Spanien/Kanarische Inseln/Teneriffa/Alcala
Mineral: Lueshite
Image: 1555432997
License: Usage for Mineralienatlas project only
Lueshit von Alcala, Teneriffa

Deformierter Würfel in Nephelin-Syenit. Begleiter sind Aegirin und Vermiculit. Bildbreite 1,5 mm

Collection: humboldt
Copyright: Kurt Rüsenberg
Contribution: humboldt 2019-04-16
Locality: Alcala / Teneriffa / Kanarische Inseln / Spanien
Lueshit von Alcala, Teneriffa
Views (File:
1563540166
): 416
Lueshit von Alcala, Teneriffa
Schwarzes Kristallkumulat in Nephelin-Syenit. Bildbreite 1 mm
Copyright: humboldt; Contribution: humboldt
Collection: humboldt
Location: Spanien/Kanarische Inseln/Teneriffa/Alcala
Mineral: Lueshite
Rock: nepheline-syenite
Image: 1563540166
License: Usage for Mineralienatlas project only
Lueshit von Alcala, Teneriffa

Schwarzes Kristallkumulat in Nephelin-Syenit. Bildbreite 1 mm

Collection: humboldt
Copyright: humboldt
Contribution: humboldt 2019-07-19
Locality: Alcala / Teneriffa / Kanarische Inseln / Spanien
Fluorapophyllit-Na mit Lueschit von Playa de la Enramada
Views (File:
1595676261
): 557
Fluorapophyllit-Na mit Lueschit von Playa de la Enramada
Kristalle eigewachsen in der Matrix eines Subvulkanits mit granitischer Zusammensetzung. Bildbreite 4 mm
Copyright: Kurt Rüsenberg; Contribution: humboldt
Collection: humboldt
Location: Spanien/Kanarische Inseln/Teneriffa/Playa de la Enramada
Mineral: Fluorapophyllite-(Na), Lueshite
Rock: subvolcanic rock with granitic composition
Image: 1595676261
License: Usage for Mineralienatlas project only
Fluorapophyllit-Na mit Lueschit von Playa de la Enramada

Kristalle eigewachsen in der Matrix eines Subvulkanits mit granitischer Zusammensetzung. Bildbreite 4 mm

Collection: humboldt
Copyright: Kurt Rüsenberg
Contribution: humboldt 2020-07-25
Locality: Playa de la Enramada / Teneriffa / Kanarische Inseln / Spanien

Collectors Summary

Color schwarz, braun
Streak color grau
Hardness (Mohs) 5.5
Crystal System orthorhombisch, Pbma

Chemism

Chem­ical formula

NaNbO3

Chem­ical com­po­si­tion

Natrium, Niob, Sauerstoff

Unit weight: 163.8944422 u; Number of atoms in the formula: 5

Info

Empirical formula:

NaNbO3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

29.29

3

60.00

15.9994300

47.9982900

Sodium

Na

14.03

1

20.00

22.9897702

22.9897702

Niobium

Nb

56.69

1

20.00

92.9063820

92.9063820

Strunz 9th edi­tion incl. updates

4.CC.30

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
30:Perowskit-Gruppe

Lapis Clas­sifica­tion

IV/C.10-060

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

Clas­sifica­tion by Hölzel

4.CF.160

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

Dana 8th edi­tion

04.03.03.04

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

schwarz, braun

Streak color

grau

Diaphane­ity (Trans­parency)

durchscheinend bis opak

RI value α / ω / n

2.3

2V angle

Biaxial (+) 45°~

Optical Data Luminescence

Color LW-UV (365nm)

 

orange

Most Common Acti­vator

Eu3+

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

57

Space Group

Pbma

Cell param­e­ters a (Å)

7.797(1)

Cell param­e­ters b (Å)

7.797(1)

Cell param­e­ters c (Å)

7.797(1)

Cell param­e­ters a/b or c/a

1

Cell param­e­ters c/b

1

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

474.005

Kristall struc­ture

Mitchell, R.H., Kennedy, B.J., Knight, K.S.: The crystal structure of lueshite at 298 K resolved by high-resolution time-of-flight neutron powder diffraction: Physics and Chemistry of Minerals Vol. 45, Issue 1 (2018) S. 77–83.

a=7.8032(4) Å;b=7.8193(4) Å;c= 15.6156(9) Å, Raumgruppe: Pmmn

X-Ray Pow­der Diffrac­tion

3.91(100),
2.77(70),
1.96(70),
1.748(20),
1.60(30),
1.382(10),
1.302(10),
1.234(10)

XRD chart Lueshite

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)

690 (100g)

Density (g/cm³)

4.44

4.593 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Demokratische Republik Kongo/Nord-Kivu, Provinz/Lueshe

Preface

Author (Name, Year)

Safiannikoff, 1959

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 327

Mitchell, R.H., Kennedy, B.J., Knight, K.S.: The crystal structure of lueshite at 298 K resolved by high-resolution time-of-flight neutron powder diffraction: Physics and Chemistry of Minerals Vol. 45, Issue 1 (2018) S. 77–83 https://rruff.info/uploads/MM81_411.pdf

IMA group assignments

Other languages

German

Lueshit

Spanish

Lueshita

French

Lueshite

English

Lueshite

Russian

Луешит

Traditional Chinese

鈉鈮礦

Simplified Chinese

钠铌矿

Japanese

リューシャイト

Alternative Name

English

Igdloite

CNMNC symbol

Symbol

Lue

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Lueshit
Google-Bilder-Suche - search for: Lueshit
Mineralienatlas.de (Forum) - search for: Lueshit

English pages

Mindat - search for: Lueshite
Webmineral - search for:Lueshite
Handbook-of-Mineralogy - search for: Lueshite
RRUFF - Raman, XRD and other mineral data - search for: Lueshite
RRUFF - References and PDF downloads - search for: Lueshite
American-Mineralogist-Crystal-Structure-Database - search for: Lueshite
Strahlen.org - search for: Lueshite

Russian pages

Webmineral.ru - search for: Луешит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Lueshit
Crystal-Treasure.com - search for: Lueshit
Bosse - search for: Lueshit
Edelsteine Neuburg - Gundolf Fischer - search for: Lueshit
Geolitho marketplace, by and for collectors - search for: Lueshit

Locations with GPS information