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Scheteligite (Scheteligit)

Collectors Summary

Color schwarz-met.
Streak color gelblichgrau
Hardness (Mohs) 5.5
Cleavages fehlt
Solubility +++ HF, - Säuren

Chemism

Chemical formula

(Ca,Y,Sb,Mn)2(Ti,Ta,Nb,W)2O6(O,OH)

Chemical composition

Antimon, Calcium, Mangan, Niob, Tantal, Titan, Yttrium, Sauerstoff, Wasserstoff, Wolfram

Unit weight: 437.71150534 u; Number of atoms in the formula: 11.25

Info

Empirical formula:

(Ca0.55Y0.3Sb0.1Mn0.05)2(Ti0.55Ta0.3Nb0.1W0.05)2O6(O0.75(OH)0.25)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.06

0.25

2.22

1.0079470

0.2519868
Oxygen

O

25.59

7

62.22

15.9994300

111.9960100
Calcium

Ca

10.07

1.1

9.78

40.0784000

44.0862400
Titanium

Ti

12.03

1.1

9.78

47.8671000

52.6538100
Manganese

Mn

1.26

0.1

0.89

54.9380499

5.4938050
Yttrium

Y

12.19

0.6

5.33

88.9058520

53.3435112
Niobium

Nb

4.25

0.2

1.78

92.9063820

18.5812764
Antimony

Sb

5.56

0.2

1.78

121.7601000

24.3520200
Tantalum

Ta

24.80

0.6

5.33

180.9479100

108.5687460
Tungsten

W

4.20

0.1

0.89

183.8410000

18.3841000

Lapis Classification

IV/C.15-020

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
15: Pyrochlor-Gruppe; MIKROLITH-Untergruppe [Ta ± Nb]

Classification by Hölzel

4.CJ.121

4: OXIDES
C: R2O3 Sesquioxides
J: Betafite-Group, Ti-dominant on the B-site

IMA status

Diskreditiert von der CNMNC

Optical Properties

Color

schwarz-met.

Streak color

gelblichgrau

2V angle

Isotropisch

Crystallography

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Physical Properties

Hardness (Mohs)

5.5

Density (g/cm³)

4.74 (gemessen)

Cleavages

fehlt

Instability

+++ HF, - Säuren

Preface

Author (Name, Year)

Bjørlykke, 1937

References

American Mineralogist 62 (1977), 403

Other languages

German

Scheteligit

English

Scheteligite

French

Scheteligite

Spanish

Schlegelita

Alternative Name

Spanish

Scheteligita

IDs

GUSID (Global unique identifier short form) EziyPpc1G0y1e44BoOu8rg
GUID (Global unique identifier) 3EB23813-3597-4C1B-B57B-8E01A0EBBCAE
Database ID 3422