https://weloveminerals.com/
https://www.mineral-bosse.de
https://www.edelsteine-neuburg.de
https://www.mineralbox.biz
https://www.mineraliengrosshandel.com
'._('einklappen').'
 

Mathiasite

Pictures (1 Images total)

Mathiasit
Views (File:
1636652427
): 237
Mathiasit
Mathiasit (mit +- Lindsleyit?), Jagersfontein Mine, Jagersfontein, Xhariep, Free State Provinz, Südafrika; BB ~ 5 mm
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Südafrika/Freistaat (Free State; Vrystaat), Provinz/Xhariep, Distrikt/Jagersfontein/Jagersfontein Mine
Mineral: Mathiasite
Image: 1636652427
License: Usage for Mineralienatlas project only
Mathiasit

Mathiasit (mit +- Lindsleyit?), Jagersfontein Mine, Jagersfontein, Xhariep, Free State Provinz, Südafrika; BB 5 mm
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2021-11-11
Locality: Jagersfontein Mine / Jagersfontein / Xhariep, Distrikt / Freistaat (Free State; Vrystaat), Provinz / Südafrika

Collectors Summary

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

Chemism

Chemical formula

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

Chemical composition

Calcium, Chrom, Eisen, Magnesium, Titan, Zirconium, Kalium, Sauerstoff

Unit weight: 1719.700034 u; Number of atoms in the formula: 60

Info

Empirical formula:

K(Zr0.75Ca0.25)(Fe0.75Mg0.25)2(Ti0.6Cr0.3Fe0.1)18O38

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

35.35

38

63.33

15.9994300

607.9783400
Magnesium

Mg

0.71

0.5

0.83

24.3050600

12.1525300
Potassium

K

2.27

1

1.67

39.0983100

39.0983100
Calcium

Ca

0.58

0.25

0.42

40.0784000

10.0196000
Titanium

Ti

30.06

10.8

18.00

47.8671000

516.9646800
Chromium

Cr

16.33

5.4

9.00

51.9961600

280.7792640
Iron

Fe

10.72

3.3

5.50

55.8452000

184.2891600
Zirconium

Zr

3.98

0.75

1.25

91.2242000

68.4181500

Analysis wt%

TiO2 : 59.23, ZrO2 : 4.62, Al2O3 : 0.63, Cr2O3 : 17.02, FeO : 8.24, MgO : 4.13, CaO : 1.03, SrO : 0.78, BaO : 0.81, K2O : 1.17, Ce2O3 : 0.53, Ln2O3 : 1.11 (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.09-020

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

Classification by Hölzel

4.CE.300

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

Dana 8th edition

08.05.01.07

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)

10.35

Cell parameters b (Å)

-

Cell parameters c (Å)

20.58

Cell parameters a/b or c/a

1.988

Cell parameters c/b

-

Z

3

Volume (ų)

1909.223

X-Ray Powder Diffraction

4.14(50),
3.39(60),
2.99(80),
2.88(80),
2.25(90),
2.14(100),
1.79(70),
1.44(100)
XRD chart Mathiasite

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)

4.60 (berechnet)

4.487 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Südafrika/Freistaat (Free State; Vrystaat), Provinz/Xhariep, Distrikt/Jagersfontein/Jagersfontein Mine

Südafrika/Nordkap (Northern Cape), Provinz/Frances Baard, Distrikt/Kimberley/KEM JV Mine/Bultfontein Mine

Preface

Author (Name, Year)

Haggerty & Smyth & Erlank & Rickard & Danchin, 1983

References

Minerals and Museums 5 (2004)

IMA group assignments

 
Crichtonite Group
 
 
 

 
 
Almeidaite
PbZn2(Mn,Y)(Ti,Fe3+)18O36(OH,O)2
trigonal
R3

 
 
Antipinite
KNa3Cu2(C2O4)4
triklin
P1

 
 
Botuobinskite
SrFe2+(Ti4+12Cr3+6)Mg2[O36(OH)2]
trigonal
R3

 
 
Cleusonite
(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38
trigonal
R3

 
 
Crichtonite
(Sr,Pb)(Mn,Fe)Fe3+2(Ti,Fe3+)18O38
trigonal
R3

 
 
Davidite-(Ce)
(Ce,La,U,Y)2Fe3+2(Ti,Fe3+)18O38
trigonal
R3

 
 
Davidite-(La)
La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
trigonal
R3

 
 
Dessauite-(Y)
(Sr,Pb)(Y,U)Fe3+2(Ti,Fe3+)18O38
trigonal
R3

 
 
Gramaccioliite-(Y)
(Pb,Sr)(Y,Mn)(Fe3+)2(Ti,Fe3+)18O38
trigonal
R3

 
 
Landauite
(Na,Pb)(Mn2+,Y)(Zn,Fe)2(Ti,Fe3+,Nb)18(O,OH,F)O38
trigonal
R3

 
 
Lindsleyite
(BaSr)Zr(Fe3+,Mg)2(Ti,Cr,Fe3+)18O38
trigonal
R3

 
 
Loveringite
(Ca,Ce)(Zr,Mg)(Ti,Fe3+)2(Ti,Cr,Fe3+)18O38
trigonal
R3

 
 
Mapiquiroite
(Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38
trigonal
R3

 
 
Mathiasite
K(Zr,Ca)(Fe3+,Mg)2(Ti,Cr,Fe3+)18O38
trigonal
R3

 
 
Mianningite
(☐,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2(Ti,Fe3+)18O38
trigonal
R3

 
 
Mirnyite
SrZr4+(Ti4+12Cr3+6)Mg2O38
trigonal
R3

 
 
Paseroite
PbMn2+(Mn2+,Fe2+)2(V5+,Ti,Fe3+,☐)18O38
triklin
R3

 
 
Romanite ?
(Fe2+,U,Pb)2(Ti,Fe3+)O4
 
 

 
 
Saranovskite
SrCaFe2+2(Cr4Ti2)Ti12O38
trigonal
R3

 
 
Senaite
Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
trigonal
R3

 
 
Unnamed (HBU UK-4)
NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38
trigonal
R3

Refresh list

Actuality: 29. Nov 2024 - 11:10:28

Other languages

German

Mathiasit

Spanish

Mathiasita

English

Mathiasite

French

Mathiasite

Russian

Матиасит

Simplified Chinese

蒙山矿

Japanese

ﾏｻﾞｲｱｻｲﾄ

CNMNC (IMA)-Number

IMA 1982-087

CNMNC symbol

Symbol

Mts

Locations with GPS information

IDs

GUSID (Global unique identifier short form) ovCy6ZkgrkeW2aIV-zgpXQ
GUID (Global unique identifier) E9B2F0A2-2099-47AE-96D9-A215FB38295D
Database ID 2408