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Lindsleyite

Collectors Summary

Color schwarz-met.
Streak color grau
Hardness (Mohs) 8
Crystal System trigonal, R3

Chemism

Chemical formula

(BaSr)Zr(Fe3+,Mg)2(Ti,Cr,Fe3+)18O38

Chemical composition

Barium, Chrom, Eisen, Magnesium, Strontium, Titan, Zirconium, Sauerstoff

Unit weight: 1918.336874 u; Number of atoms in the formula: 61

Info

Empirical formula:

(BaSr)Zr(Fe0.75Mg0.25)2(Ti0.6Cr0.3Fe0.1)18O38

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

31.69

38

62.30

15.9994300

607.9783400

Magnesium

Mg

0.63

0.5

0.82

24.3050600

12.1525300

Titanium

Ti

26.95

10.8

17.70

47.8671000

516.9646800

Chromium

Cr

14.64

5.4

8.85

51.9961600

280.7792640

Iron

Fe

9.61

3.3

5.41

55.8452000

184.2891600

Strontium

Sr

4.57

1

1.64

87.6210000

87.6210000

Zirconium

Zr

4.76

1

1.64

91.2242000

91.2242000

Barium

Ba

7.16

1

1.64

137.3277000

137.3277000

Analysis wt%

Ø TiO2 : 59.64, ZrO2 : 3.41, Al2O3 : 0.59, Cr2O3 : 15.10, FeO : 11.22, MgO : 3.32, CaO : 0.80, SrO : 1.18, BaO : 2.56, K2O : 0.55 (Ref: American Mineralogist 83)

Strunz 9th edition incl. updates

4.CC.40

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
40:Crichtonit-Gruppe

Lapis Classification

IV/C.09-050

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
9: Crichtonit-Gruppe

Classification by Hölzel

4.CE.350

4: OXIDES
C: R2O3 Sesquioxides
E: Other complex Oxides, mostly hextrig
3: Crichtonite-Group

Dana 8th edition

08.05.01.08

08: Multiple Oxides with Nb, Ta, and Ti
05: Multiple Oxides with Nb, Ta, and Ti
01: Crichtonite group (ABC18 T2 O38)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Crichtonite Group

Optical Properties

Color

schwarz-met.

Streak color

grau

Crystallography

Crystal System

trigonal

Class (H-M)

3

Space Group number

148

Space Group

R3

Cell parameters a (Å)

10.37

Cell parameters b (Å)

-

Cell parameters c (Å)

20.52

Cell parameters a/b or c/a

1.979

Cell parameters c/b

-

Z

3

Volume (ų)

1911.021

X-Ray Powder Diffraction

2.87(70),
2.83(70),
2.13(100),
1.80(100),
1.59(100),
1.50(50),
1.44(100)

XRD chart Lindsleyite

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)

8

VHN (Hardness Vickers)

1505 (100g)

Density (g/cm³)

4.63 (berechnet)

5 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Haggerty & Smyth & Erlank & Rickard & Danchin, 1983

References

Minerals and Museums 5 (2004)

IMA group assignments

Other languages

German

Lindsleyit

Spanish

Lindsleyita

French

Lindsleyite

English

Lindsleyite

Russian

Линдслейит

Simplified Chinese

钡蒙山矿

Japanese

リンドスレィ鉱

Alternative Name

Simplified Chinese

林斯利矿

CNMNC (IMA)-Number

IMA 1982-086

CNMNC symbol

Symbol

Ldy

Locations with GPS information

IDs

GUSID (Global unique identifier short form) dn7VfiKfQkGgSfBNZYcd0Q
GUID (Global unique identifier) 7ED57E76-9F22-4142-A049-F04D65871DD1
Database ID 2216