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Mathiasite (Mathiasit)

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 ver-wandte 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

Volumne (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 )

Preface

Author (Name, Year)

Haggerty & Smyth & Erlank & Rickard & Danchin, 1983

References

Minerals and Museums 5 (2004)

IMA group assignments

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

Almeidaite

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

trigonal : 3 : R3

4.CC.40

Cleusonite

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

trigonal : 3 : R3

4.CC.40

Crichtonite

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

trigonal : 3 : R3

4.CC.40

Davidite-(Ce)

(Ce,La,U,Y)2Fe3+2(Ti,Fe3+)18O38

trigonal : 3 : R3

4.CC.40

Davidite-(La)

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

trigonal : 3 : R3

4.CC.40

Dessauite-(Y)

(Sr,Pb)(Y,U)Fe3+2(Ti,Fe3+)18O38

trigonal : 3 : R3

4.CC.40

Gramaccioliite-(Y)

(Pb,Sr)(Y,Mn)(Fe3+)2(Ti,Fe3+)18O38

trigonal : 3 : R3

4.CC.40

Landauite

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

trigonal : 3 : R3

4.CC.40

Lindsleyite

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

trigonal : 3 : R3

4.CC.40

Loveringite

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

trigonal : 3 : R3

4.CC.40

Mapiquiroite

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

trigonal : 3 : R3

4.CC.40

Mathiasite

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

trigonal : 3 : R3

4.CC.40

Mianningite

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

trigonal : 3 : R3

4.CC.40

Senaite

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

trigonal : 3 : R3

4.CC.40

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

Landauite

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

trigonal : 3 : R3

IV/C.09-010

Mathiasite

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

trigonal : 3 : R3

IV/C.09-020

Loveringite

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

trigonal : 3 : R3

IV/C.09-030

Crichtonite

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

trigonal : 3 : R3

IV/C.09-040

Dessauite-(Y)

(Sr,Pb)(Y,U)Fe3+2(Ti,Fe3+)18O38

trigonal : 3 : R3

IV/C.09-045

Mapiquiroite

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

trigonal : 3 : R3

IV/C.09-047

Lindsleyite

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

trigonal : 3 : R3

IV/C.09-050

Almeidaite

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

trigonal : 3 : R3

IV/C.09-055

Paseroite

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

triklin : 3 : R3

IV/C.09-058

Senaite

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

trigonal : 3 : R3

IV/C.09-060

Cleusonite

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

trigonal : 3 : R3

IV/C.09-065

Gramaccioliite-(Y)

(Pb,Sr)(Y,Mn)(Fe3+)2(Ti,Fe3+)18O38

trigonal : 3 : R3

IV/C.09-070

Davidite-(La)

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

trigonal : 3 : R3

IV/C.09-080

Davidite-(Ce)

(Ce,La,U,Y)2Fe3+2(Ti,Fe3+)18O38

trigonal : 3 : R3

IV/C.09-090

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

Mathiasite

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

trigonal : 3 : R3

4.CE.300

Loveringite

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

trigonal : 3 : R3

4.CE.320

Crichtonite

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

trigonal : 3 : R3

4.CE.330

Dessauite-(Y)

(Sr,Pb)(Y,U)Fe3+2(Ti,Fe3+)18O38

trigonal : 3 : R3

4.CE.340

Lindsleyite

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

trigonal : 3 : R3

4.CE.350

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Landauite

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

trigonal : 3 : R3

08.05.01.01

Loveringite

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

trigonal : 3 : R3

08.05.01.02

Crichtonite

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

trigonal : 3 : R3

08.05.01.03

Senaite

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

trigonal : 3 : R3

08.05.01.04

Davidite-(La)

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

trigonal : 3 : R3

08.05.01.05

Davidite-(Ce)

(Ce,La,U,Y)2Fe3+2(Ti,Fe3+)18O38

trigonal : 3 : R3

08.05.01.06

Mathiasite

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

trigonal : 3 : R3

08.05.01.07

Lindsleyite

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

trigonal : 3 : R3

08.05.01.08

Dessauite-(Y)

(Sr,Pb)(Y,U)Fe3+2(Ti,Fe3+)18O38

trigonal : 3 : R3

08.05.01.09

Cleusonite

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

trigonal : 3 : R3

08.05.01.10

Gramaccioliite-(Y)

(Pb,Sr)(Y,Mn)(Fe3+)2(Ti,Fe3+)18O38

trigonal : 3 : R3

08.05.01.11

Other languages

German

Mathiasit

Spanish

Mathiasita

English

Mathiasite

French

Mathiasite

Russian

Матиасит

Simplified Chinese

蒙山矿

Japanese

マザイアサイト

IMA Number

IMA 1982-087

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

German pages

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

English pages

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Handbook-of-Mineralogy - search for: Mathiasite
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RRUFF - References and PDF downloads - search for: Mathiasite
American-Mineralogist-Crystal-Structure-Database - search for: Mathiasite
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Russian pages

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German pages

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Locations with GPS information




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