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Srilankite

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Carmichaelit-Srilankit-Verwachsung in Pyrop
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Carmichaelit-Srilankit-Verwachsung in Pyrop

taflige Verwachsung von Carmichaelit und Srilankit in Pyrop, Garnet Ridge, Dinnehotso, Apache County, Arizona, USA; BB < 1 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2019-12-07
Locality: Garnet Ridge / Dinnehotso / Monument Valley / Indianerreservat Navajo-Nation / Apache Co. / Arizona / USA

Collectors Summary

Color grau-weiß
Hardness (Mohs) 6.5
Crystal System orthorhombisch, Pbcn

Chemism

Chem­ical formula

(Ti,Zr)O2

Chem­ical com­po­si­tion

Titan, Zirconium, Sauerstoff

Unit weight: 90.705235 u; Number of atoms in the formula: 3

Info

Empirical formula:

(Ti0.75Zr0.25)O2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

35.28

2

66.67

15.9994300

31.9988600

Titanium

Ti

39.58

0.75

25.00

47.8671000

35.9003250

Zirconium

Zr

25.14

0.25

8.33

91.2242000

22.8060500

Strunz 9th edi­tion incl. updates

4.DB.25

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
B: Mit mittelgroßen [Kationen]: Ketten kantenverknüpfter Oktaeder
25:Samarskit-Gruppe

Lapis Clas­sifica­tion

IV/D.15-020

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)

Clas­sifica­tion by Hölzel

4.DG.110

4: OXIDES
D: Dioxides
G: Brookite-Group

Dana 8th edi­tion

04.04.13.02

04: Oxide Minerals
04: Simple Oxides with a cation charge of 4+ (A++++ O2)

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

grau-weiß

max. Birefrin­gence

schwach

RI value α / ω / n

2.38

RI value γ / ε

GlD

Ri mean

2.380

2V angle

Biaxial (-) 16°

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

60

Space Group

Pbcn

Cell param­e­ters a (Å)

4.708

Cell param­e­ters b (Å)

5.553

Cell param­e­ters c (Å)

5.019

Cell param­e­ters a/b or c/a

0.848

Cell param­e­ters c/b

0.904

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

131.214

X-Ray Pow­der Diffrac­tion

3.61(20),
2.92(100),
2.51(10),
1.864(10),
1.793(10),
1.721(30),
1.692(20),
1.516(30)

XRD chart Srilankite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

6.5

VHN (Hard­ness Vick­ers)

950 (100g)

Density (g/cm³)

4.765

4.591 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Willgallis & Siegmann & Hettiaratchi, 1983

References

Neues Jahrbuch für Mineralogie, Monatshefte (1983), 151

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

Ixiolite

(Ta,Mn,Nb)O2

orthorhombisch : mmm : Pbcn

4.DB.25

Srilankite

(Ti,Zr)O2

orthorhombisch : mmm : Pbcn

4.DB.25

Ishikawaite

(U,Fe,Y)NbO4

4.DB.25

Rossovskyite

(Fe3+,Ta)(Nb,Ti)O4

monoklin : 2/m : P2/c

4.DB.25

Nioboheftetjernite

ScNbO4

monoklin : 2/m : P2/c

4.DB.25

'Písekite-(Y)'

(Y,As,Ca,Fe,U)(Nb,Ti,Ta)O4

monoklin : 2/m : P21/n

4.DB.25

Samarskite-(Y)

YFe3+Nb2O8

orthorhombisch : mmm : Pbcn

4.DB.25

Iwashiroite-(Y)

YTaO4

monoklin : 2/m : P2/a

4.DB.25

Samarskite-(Yb)

YbNbO4

monoklin : 2/m : P2/c

4.DB.25

Calciosamarskite

(Ca,Fe,Y)(Nb,Ta,Ti)O4

4.DB.25

'Yttrocolumbite-(Y)'

(Y,U,Fe2+)(Nb,Ta)O4

4.DB.25

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

Brookite

TiO2

orthorhombisch : mmm : Pbca

IV/D.15-010

Srilankite

(Ti,Zr)O2

orthorhombisch : mmm : Pbcn

IV/D.15-020

Carmichaelite

(Ti,Cr,Fe)(O,OH)2

monoklin : 2/m : P21/c

IV/D.15-025

Tellurite

TeO2

orthorhombisch : mmm : Pbca

IV/D.15-030

Scrutinyite

alpha-PbO2

orthorhombisch : mmm : Pbcn

IV/D.15-040

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

Brookite

TiO2

orthorhombisch : mmm : Pbca

4.DG.100

Srilankite

(Ti,Zr)O2

orthorhombisch : mmm : Pbcn

4.DG.110

Scrutinyite

alpha-PbO2

orthorhombisch : mmm : Pbcn

4.DG.140

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

Akhtenskite

Mn4+O2

hexagonal : 6/mmm : P63/mmc

04.04.10.01

Paramontroseite

VO2

orthorhombisch : mmm : Pbnm

04.04.11.01

Cerianite-(Ce)

CeO2

kubisch : m3m : Fm3m

04.04.12.01

Tazheranite

(Zr,Ti,Ca)O2

kubisch : m3m, 43m : Fm3m, P43m

04.04.13.01

Srilankite

(Ti,Zr)O2

orthorhombisch : mmm : Pbcn

04.04.13.02

Baddeleyite

ZrO2

monoklin : 2/m : P21/c

04.04.14.01

Tugarinovite

MoO2

monoklin : 2/m : P21/c

04.04.15.01

Cervantite

Sb3+Sb5+O4

orthorhombisch : mm2 : Pna21

04.04.16.01

Clinocervantite

Sb3+Sb5+O4

monoklin : 2/m : C2/c

04.04.16.02

Huanzalaite

MgWO4

monoklin : 2/m : P2/c

04.04.16.04

Lenoblite

V4+2O4·2H2O

orthorhombisch : 222 : P212121

04.04.17.01

CNMNC (IMA)-Number

IMA 1982-056

CNMNC symbol

Symbol

Sri

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

German pages

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

English pages

Mindat - search for: Srilankite
Webmineral - search for:Srilankite
Handbook-of-Mineralogy - search for: Srilankite
RRUFF - Raman, XRD and other mineral data - search for: Srilankite
RRUFF - References and PDF downloads - search for: Srilankite
American-Mineralogist-Crystal-Structure-Database - search for: Srilankite
Athena - search for: Srilankite

Russian pages

Webmineral.ru - search for: Шриланкит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Srilankit
Crystal-Treasure.com - search for: Srilankit
Bosse - search for: Srilankit

Locations with GPS information