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Zirkelite

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Zirkelit mit Biotit
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Zirkelit mit Biotit

schwarzglänzende Massen von Zirkelit, verwachsen mit Biotit, Palabora Mine, Loolekop, Phalaborwa, Limpopoe, Südafrika; BB 6 cm

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-05-27
Locality: Palabora Mine / Loolekop / Phalaborwa / Mopani, Distrikt / Limpopo, Provinz / Südafrika

Collectors Summary

Color schwarz, rötlichbraun
Streak color bräunlich grau
Lustre Diamantglanz, Speckglanz, Harzglanz
Hardness (Mohs) 5.5
Fracture muschelig
Solubility ++ heiße konz. HF
Crystal System kubisch,

Chemism

Chem­ical formula

(Ti,Ca,Zr)O2-x

Chem­ical com­po­si­tion

Calcium, Titan, Zirconium, Sauerstoff

Anal­y­sis wt%

CaO : 8.55, ThO2 : 8.33, UO2 : 4.48, ZrO2 : 34.19, MgO : 1.33, FeO : 4.72, TiO2 : 36.26, H2O : 1.70 (Ref: American Mineralogist 83)

Strunz 9th edi­tion incl. updates

4.DL.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
L: Mit großen (± mittelgroßen) [Kationen]; [Fluorit] typische Strukturen
05:Uraninit-Gruppe

Lapis Clas­sifica­tion

IV/C.20-010

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und ver-wandte Verbindungen)
20: Pyrochlor-Gruppe

Clas­sifica­tion by Hölzel

4.CO.100

4: OXIDES
C: R2O3 Sesquioxides
O: Pseudopyrochlore-Group

Dana 8th edi­tion

10.06.05.01

10: Oxyhalides and Hydroxyhalides
06: Oxyhalides and Hydroxyhalides where Am Bn (O,OH)p Xq

IMA sta­tus

anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

schwarz, rötlichbraun

Streak color

bräunlich grau

Diaphane­ity (Trans­parency)

teilweise durchscheinend bis opak

Lus­tre

Diamantglanz, Speckglanz, Harzglanz

RI value α / ω / n

2.19

Ri mean

2.19

Anisotropism

isotropisch

Crystallography

Crystal Sys­tem

kubisch

Cell param­e­ters a (Å)

5.157

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

-

Cell param­e­ters a/b or c/a

1

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

4

Volumne (ų)

137.149

X-Ray Pow­der Diffrac­tion

3.15(20),
2.96(100),
2.57(20),
2.55(20),
2.52(10),
1.82(50),
1.560(40),
1.184(20)

XRD chart Zirkelite

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)

5.5

VHN (Hard­ness Vick­ers)

770 (g nicht angegeben)

Density (g/cm³)

4.27

Frac­ture

muschelig

Tenac­ity

spröde

Radioac­tiv­ity

radioaktiv wegen seines Zirconium- und möglichen Thorium-Anteils

Insta­bil­ity

++ heiße konz. HF

(Co-)Type locality

(Co-)Type locality

Brasilien/Südosten (Região Sudeste)/Sao Paulo/Cajati/Jacupiranga Mine

Type mate­r­ial

The Natural History Museum, London, England

Col­lec­tion number of type mate­r­ial

80142

Preface

Name from

Zu Ehren von Ferdinand Zirkel (1838-1912), deutscher Petrograph, Professor für Mineralogie der Universität Leipzig, Leipzig, Deutschland.

Author (Name, Year)

Hussak & Prior, 1895

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: Ionizing radiation: Radioaktiv

References

Hussak and Prior (1895), Mineralogical Magazine (1895): 11: 80-88.

American Mineralogist, Volune 60, pages 341 , 1975.

Mineralogical Magazine (1989): 53: 565.

Mineralogical Magazine: 62: 837-846.

Strunz Mineralogical Tables 9. Edition (2001), 225

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

Uraninite

UO2

kubisch : m3m : Fm3m

4.DL.05

Zirkelite

(Ti,Ca,Zr)O2-x

4.DL.05

Thorianite

ThO2

kubisch : m3m : Fm3m

4.DL.05

Vorlanite

(CaU6+)O4

kubisch : m3m : Fm3m

4.DL.05

Cerianite-(Ce)

CeO2

kubisch : m3m : Fm3m

4.DL.05

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

Zirkelite

(Ti,Ca,Zr)O2-x

IV/C.20-010

Zirconolite-2M

(Ca,Y)Zr(Ti,Mg,Al)2O7

monoklin : 2/m : C2/c

IV/C.20-020

'Zirconolite-3T' (Pol.v. Zirconolite-2M)

CaZrTi2O7

trigonal : 32 : P3121

IV/C.20-020

'Zirconolite-3O' (Pol.v. Zirconolite-2M)

(Ca,Fe,Y,Th)2Fe(Ti,Nb)3Zr2O14

orthorhombisch : mmm : Acam

IV/C.20-030

Nöggerathite-(Ce)

(Ce,Ca)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14

orthorhombisch : mmm : Cmca

IV/C.20-060

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

Zirkelite

(Ti,Ca,Zr)O2-x

4.CO.100

Kassite

CaTi2O4(OH)2

monoklin : 2/m : P21/a

4.CO.110

Cafetite

CaTi2O5 ·H2O

monoklin : 2/m : P21/n

4.CO.120

'Uhligite'

Ca3(Ti,Al,Zr)9O20

4.CO.130

'Zirconolite'

CaZrTi2O7

4.CO.140

Zirconolite-2M

(Ca,Y)Zr(Ti,Mg,Al)2O7

monoklin : 2/m : C2/c

4.CO.142

'Zirconolite-3O' (Pol.v. Zirconolite-2M)

(Ca,Fe,Y,Th)2Fe(Ti,Nb)3Zr2O14

orthorhombisch : mmm : Acam

4.CO.144

'Zirconolite-3T' (Pol.v. Zirconolite-2M)

CaZrTi2O7

trigonal : 32 : P3121

4.CO.146

Tazheranite

(Zr,Ti,Ca)O2

kubisch : m3m, 43m : Fm3m, P43m

4.CO.160

Calzirtite

Ca2Zr5Ti2O16

orthorhombisch : mmm : Pbca

4.CO.180

Hiärneite

Ca2(Zr,Ti)5(Sb5+,Mn3+)2O16

tetragonal : 4/mmm : I41/acd

4.CO.185

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

Diaboleite

Pb2CuCl2(OH)4

tetragonal : 4mm : P4mm

10.06.01.01

Koenenite

Na4Mg9Al4Cl12(OH)22

trigonal : 3 : R3

10.06.02.01

Yedlinite

Pb6CrCl6(O,OH)8

trigonal : 3 : R3

10.06.03.01

Chloroxiphite

Pb3CuCl2(OH)2O2

monoklin : 2/m : P21/m

10.06.04.01

Zirkelite

(Ti,Ca,Zr)O2-x

10.06.05.01

'Zirklerite'

(Fe2+,Mg)9Al4Cl18(OH)12 ·14H2O

10.06.05.01

Boleite

KPb26Ag9Cu24(OH)48Cl62

kubisch : m3m : Pm3m

10.06.06.01

Cumengeite

Pb21Cu20Cl42(OH)40·6H2O

tetragonal : 4/mmm : I4/mmm

10.06.07.01

Pseudoboleite

Pb31Cu24Cl62(OH)48

tetragonal : 4/mmm : I4/mmm

10.06.08.01

Bideauxite

Pb2Ag[(F,OH)2|Cl3]

kubisch : m3m : Fd3m

10.06.09.01

CNMNC symbol

Symbol

Zke

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

German pages

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

English pages

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RRUFF - Raman, XRD and other mineral data - search for: Zirkelite
RRUFF - References and PDF downloads - search for: Zirkelite
American-Mineralogist-Crystal-Structure-Database - search for: Zirkelite
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Russian pages

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