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Jeppeite

Pictures (1 Images total)

Jeppeit
Views (File:
1585472946
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Jeppeit
schwarzer, eingewachsener Jeppeit, Walgide Hills, Noonkanbah Station, Derby-West Kimberley Shire, Western Australia, Australien; BB ~ 2 mm
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Australien/Western Australia/Derby-West Kimberley Shire/Kimberley/Fitzroy Basin/Walgidee Hills
Mineral: Jeppeite
Image: 1585472946
License: Usage for Mineralienatlas project only
Jeppeit

schwarzer, eingewachsener Jeppeit, Walgide Hills, Noonkanbah Station, Derby-West Kimberley Shire, Western Australia, Australien; BB 2 mm
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-03-29
Locality: Walgidee Hills / Fitzroy Basin / Kimberley / Derby-West Kimberley Shire / Western Australia / Australien

Collectors Summary

Hardness (Mohs) 6
Crystal System monoklin, C2/m

Chemism

Chemical formula

(K,Ba)2(Ti,Fe3+)6O13

Chemical composition

Barium, Eisen, Titan, Kalium, Sauerstoff

Unit weight: 634.473655 u; Number of atoms in the formula: 21

Info

Empirical formula:

(K0.75Ba0.25)2(Ti0.75Fe0.25)6O13

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

32.78

13

61.90

15.9994300

207.9925900
Potassium

K

9.24

1.5

7.14

39.0983100

58.6474650
Titanium

Ti

33.95

4.5

21.43

47.8671000

215.4019500
Iron

Fe

13.20

1.5

7.14

55.8452000

83.7678000
Barium

Ba

10.82

0.5

2.38

137.3277000

68.6638500

Strunz 9th edition incl. updates

4.CC.50

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
50:Jeppeit-Gruppe

Lapis Classification

IV/D.07-010

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)

Classification by Hölzel

4.CE.610

4: OXIDES
C: R2O3 Sesquioxides
E: Other complex Oxides, mostly hextrig
6: Freudenbergite-Group

Dana 8th edition

08.07.09.01

08: Multiple Oxides with Nb, Ta, and Ti
07: Multiple Oxides with Nb, Ta, and Ti

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

max. Birefringence

0.22
Birefringence chart\! Jeppeite title=Birefringence chart Jeppeite

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

2.13

RI value β

2.21

RI value γ / ε

2.35

Ri mean

2.23

2V angle

Biaxial (+) 80°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

15.543

Cell parameters b (Å)

3.837

Cell parameters c (Å)

9.123

Cell parameters a/b or c/a

4.051

Cell parameters c/b

2.378

Cell parameters α

90°

Cell parameters β

99.25

Cell parameters γ

90°

Z

2

Volume (ų)

537.007

X-Ray Powder Diffraction

4.50(40),
3.07(100),
2.990(100),
2.812(100),
2.091(60),
2.074(60),
1.919(80),
1.412(50)
XRD chart Jeppeite

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)

6

VHN (Hardness Vickers)

719 (100g)

Density (g/cm³)

3.94 (gemessen)

3.924 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Australien/Western Australia/Derby-West Kimberley Shire/Kimberley/Fitzroy Basin/Walgidee Hills

Preface

Author (Name, Year)

Pryce & Hodge & Criddle, 1984

References

Mineralogical Magazine 48 (1984), 263

Other languages

German

Jeppeit

French

Jeppeite

English

Jeppeite

Spanish

Jeppeíta

Russian

Джеппеит

Japanese

ｼﾞｪｯﾍﾟ鉱

CNMNC (IMA)-Number

IMA 1980-080

CNMNC symbol

Symbol

Jep

Rock part of

 
Rocks

 
 
igneous rocks and sediments

 
 
 
crystalline igneous rocks

 
 
 
 
exotic crystalline rocks

 
 
 
 
 
lamproite  

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Hint

- Essential mineral - Important for the classification of the rock.
- Accessory or non-essential mineral - this minerals are common, sometimes major part of, but are not always present.

Actuality: 19. Jan 2025 - 01:25:37

Locations with GPS information

IDs

GUSID (Global unique identifier short form) sjK166p6FkOGMm_PSBoHoQ
GUID (Global unique identifier) EBB532B2-7AAA-4316-8632-6FCF481A07A1
Database ID 1787