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Srilankite

Pictures (1 Images total)

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

Other languages

German

Srilankit

Spanish

Srilankita

French

Srilankite

English

Srilankite

Russian

Шриланкит

Japanese

スリラムカイト

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
Mineralienatlas.de (Forum) - 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
Strahlen.org - 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
Edelsteine Neuburg - Gundolf Fischer - search for: Srilankit

Locations with GPS information