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Lakargiite

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Lakargiit
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Lakargiit (SNr: A034455)

winzige, farblos glänzende Kristallfragmente in Matrix vom Emmelberg; BB = 1 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Matthias Reinhardt
Contribution: Münchener Micromounter 2014-11-13

Collectors Summary

Color rotbraun (hohe Ti-Gehalte) über gelblich bis fast farblos
Streak color hellbraun bis cremeweiß
Lustre Glasglanz bis Diamantglanz (dunkle Varietäten Halbmetallglanz)
Hardness (Mohs) 8 - 9
Cleavages (110) und (001) sind gut definiert (orthorhombische Orientierung)
Fracture uneben
Crystal System orthorhombisch, Pnma
Morphology Das Mineral bildet pseudokubische Kristalle bis zu 35 µm Größe sowie bis 200 µm große Aggregate.

Chemism

Chemical formula

CaZrO3

Chemical composition

Calcium, Zirconium, Sauerstoff

Unit weight: 179.30089 u; Number of atoms in the formula: 5

Info

Empirical formula:

CaZrO3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

26.77

3

60.00

15.9994300

47.9982900

Calcium

Ca

22.35

1

20.00

40.0784000

40.0784000

Zirconium

Zr

50.88

1

20.00

91.2242000

91.2242000

Analysis wt%

UO3 : 2.24, Nb2O5 : 0.56, ZrO2 : 40.34, TiO2 : 7.89, HfO2 : 0.90, SnO2 : 11.14, Fe2O3 : 2.46, ThO2 : 0.84, Ce2O3 : 0.53, La2O3 : 0.58, CaO : 31.08, Ln2O3 : 1.25 (Ref: American Mineralogist 2008)

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.10-020

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

Classification by Hölzel

4.CF.130

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

IMA status

anerkannt - IMA Mineralveröffentlichungen Juli 2007

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Perowskite group
Perovskite supergroup  ⇒ Stoichiometric perovskites  ⇒ Perovskite subgroup

Optical Properties

Color

rotbraun (hohe Ti-Gehalte) über gelblich bis fast farblos

Streak color

hellbraun bis cremeweiß

Diaphaneity (Transparency)

durchscheinend bis transparent

Lustre

Glasglanz bis Diamantglanz (dunkle Varietäten Halbmetallglanz)

max. Birefringence

0.004

Birefringence chart\! Lakargiite title=Birefringence chart Lakargiite

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

2.1

RI value β

2.1

RI value γ / ε

2.1

Ri mean

2.1

2V angle

Biaxial (+)- 0°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

53

Space Group

Pnma

Cell parameters a (Å)

5.556

Cell parameters b (Å)

5.715

Cell parameters c (Å)

7.960

Cell parameters a/b or c/a

0.972

Cell parameters c/b

1.393

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

252.75

X-Ray Powder Diffraction

4.013(35), 4.009(16), 2.881(25), 2.836(100), 2.796(22), 2.006(29), 1.654(17), 1.622(24)

XRD chart Lakargiite

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

Morphology

Das Mineral bildet pseudokubische Kristalle bis zu 35 µm Größe sowie bis 200 µm große Aggregate.

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

8 - 9

VHN (Hardness Vickers)

1545 (100g)

Density (g/cm³)

4.59 ber.

4.712 ( ρ calc. Mineralienatlas )

Cleavages

(110) und (001) sind gut definiert (orthorhombische Orientierung)

Fracture

uneben

Preface

Name from

dem Berg Lakargi

Author (Name, Year)

Evgeny V. Galuskin, 2007

References

IMA Mineralveröffentlichungen Juli 2007.

Galuskin, E.V., Gazeev, V.M., Armbruster, Th., Zadov, A., Galuskina, I.O., Pertsev, N.N., Dziercanowski, P., Kadiyski, M., Gurbanov, A., Wrzalik, R., Winiarski, A. - Lakargiite CaZrO3 – a new mineral of the perovskite group from the North Caucasus, Kabardino-Balkaria, Russia. American Mineralogist (2008), 93, (im Druck).
Mineralien Welt 03/09, Steffen Jahn, Neue Mineralien

IMA group assignments

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Barioperovskite

BaTiO3

orthorhombisch : mm2 : Amm2

4.CC.30

Lakargiite

CaZrO3

orthorhombisch : mmm : Pnma

4.CC.30

Latrappite

(Ca,Na)(Nb,Ti,Fe)O3

orthorhombisch : mmm : Pbnm

4.CC.30

Lueshite

NaNbO3

orthorhombisch : mmm : Pmmn

4.CC.30

Megawite

CaSnO3

orthorhombisch : mmm : Pbnm

4.CC.30

'Natroniobite'

NaNbO3

4.CC.30

Perovskite

CaTiO3

orthorhombisch : mmm : Pbnm

4.CC.30

'Uhligite'

Ca3(Ti,Al,Zr)9O20

4.CC.30

Vapnikite

Ca3UO6

monoklin : 2/m : P21/n

4.CC.30

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Perovskite

CaTiO3

orthorhombisch : mmm : Pbnm

IV/C.10-010

Megawite

CaSnO3

orthorhombisch : mmm : Pbnm

IV/C.10-015

Lakargiite

CaZrO3

orthorhombisch : mmm : Pnma

IV/C.10-020

Latrappite

(Ca,Na)(Nb,Ti,Fe)O3

orthorhombisch : mmm : Pbnm

IV/C.10-030

Barioperovskite

BaTiO3

orthorhombisch : mm2 : Amm2

IV/C.10-035

Tausonite

SrTiO3

kubisch : m3m : Pm3m

IV/C.10-040

Loparite-(Ce)

(Na,Ce,Sr)(Ce,Th)(Ti,Nb)2O6

IV/C.10-050

Isolueshite

Na(Nb,Ti)O3

kubisch : m3m : Pm3m

IV/C.10-055

Lueshite

NaNbO3

orthorhombisch : mmm : Pmmn

IV/C.10-060

'Natroniobite'

NaNbO3

IV/C.10-070

Macedonite

PbTiO3

tetragonal : 4mm : P4mm

IV/C.10-080

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Perovskite

CaTiO3

orthorhombisch : mmm : Pbnm

4.CF.100

Latrappite

(Ca,Na)(Nb,Ti,Fe)O3

orthorhombisch : mmm : Pbnm

4.CF.110

Loparite-(Ce)

(Na,Ce,Sr)(Ce,Th)(Ti,Nb)2O6

4.CF.120

Lakargiite

CaZrO3

orthorhombisch : mmm : Pnma

4.CF.130

Lueshite

NaNbO3

orthorhombisch : mmm : Pmmn

4.CF.160

'Natroniobite'

NaNbO3

4.CF.165

Megawite

CaSnO3

orthorhombisch : mmm : Pbnm

4.CF.170

Other languages

German

Lakargiit

Spanish

Lakargiita

English

Lakargiite

Russian

Лакаргиит

IMA Number

IMA 2007-014

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

German pages

DeWikiPedia - search for: Lakargiit
Google-Bilder-Suche - search for: Lakargiit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Lakargiit

English pages

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

Russian pages

Webmineral.ru - search for: Лакаргиит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Lakargiit
Crystal-Treasure.com - search for: Lakargiit
Bosse - search for: Lakargiit



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