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Zirkelite

Pictures (1 Images total)

Zirkelit mit Biotit
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1590591154
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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
Location: Südafrika/Limpopo, Provinz/Mopani, Distrikt/Phalaborwa/Loolekop/Palabora Mine
Mineral: Zirkelite
Image: 1590591154
License: Usage for Mineralienatlas project only
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 verwandte 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

Other languages

German

Zirkelit

Spanish

Zirkelita

English

Zirkelite

French

Zirkelite

Russian

Циркелит

Simplified Chinese

钛锆钍矿

Japanese

ゼケライト

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
Mineralienatlas.de (Forum) - search for: Zirkelit

English pages

Mindat - search for: Zirkelite
Webmineral - search for:Zirkelite
Handbook-of-Mineralogy - search for: Zirkelite
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
Strahlen.org - search for: Zirkelite

Russian pages

Webmineral.ru - search for: Циркелит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Zirkelit
Crystal-Treasure.com - search for: Zirkelit
Bosse - search for: Zirkelit
Edelsteine Neuburg - Gundolf Fischer - search for: Zirkelit
Geolitho marketplace, by and for collectors - search for: Zirkelit

Locations with GPS information