'._('einklappen').'
 

Chaoite

Pictures (1 Images total)

Chaoit als schwarze eingesprengte Butzen
Views (Image: 1551523377): 1232
Chaoit als schwarze eingesprengte Butzen (SNr: A006295)

von Bopfingen, im Nördlinger-Ries, Bayern, Deutschland (BB = 14 mm)

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2019-03-02
Locality: Bopfingen / Nördlinger Ries / Ostalbkreis / Stuttgart, Bezirk / Baden-Württemberg / Deutschland

Collectors Summary

Color dunkelgrau-met.
Hardness (Mohs) 1 - 2
Solubility - Säuren
Crystal System hexagonal, P6/mmm

Chemism

Chem­ical formula

C

Chem­ical com­po­si­tion

Kohlenstoff

Unit weight: 12.01078 u; Number of atoms in the formula: 1

Info

Empirical formula:

C

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Carbon

C

100.00

1

100.00

12.0107800

12.0107800

Strunz 9th edi­tion incl. updates

1.CB.05

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
C: Halbmetalle (Metalloide) und Nichtmetalle
B: Kohlenstoff-Silizium-Familie
05:Graphit-Gruppe

Lapis Clas­sifica­tion

I/B.02-020

I: ELEMENTE
B: Halbmetalle und Nichtmetalle

Clas­sifica­tion by Hölzel

1.DA.130

1: ELEMENTS
D: Non Metals
A: Carbon-Silicon-Group

Dana 8th edi­tion

01.03.06.04

01: Native Elements and Alloys
03: Native Elements with semi-metallic and non-metallic elements
06: Carbon Polymorph group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

dunkelgrau-met.

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6/mmm

Space Group number

191

Space Group

P6/mmm

Cell param­e­ters a (Å)

8.948

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

14.078

Cell param­e­ters a/b or c/a

1.573

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

168

Volumne (ų)

976.166

X-Ray Pow­der Diffrac­tion

4.47(100),
4.26(100),
4.12(90),
3.71(50),
3.22(50),
3.03(80),
2.55(80),
2.28(80)

XRD chart Chaoite

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

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

1 - 2

VHN (Hard­ness Vick­ers)

14 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.43 (berechnet)

3.432 ( ρ calc. Mineralienatlas )

Insta­bil­ity

- Säuren

Preface

Occurrences

In stoßwellen-metamorphisiertem Graphit-Gneis und in Ureilit- Meteoriten. Ries-Krater, Bayern; Goalpur und Dyalpur-Meteoriten, Indien.

Author (Name, Year)

El Goresy, 1969

References

El Goresy, A. and Donnay, G. (1968): A new allotropic form of carbon from the Ries Crater. Science 161, 363-364.
El Goresy, A. (1969): Eine neue Kohlenstoff-Modifikation aus dem Nördlinger Ries. Naturwissenschaften 56, 493-494.
Smith, P.P.K. and Buseck, P.R. (1982): Carbyne forms of carbon: do they exist ? Science 216, 984-986.(die Existenz von Chaoit wird in Frage gestellt)
Li, S., Ji, G., Huang, Z., Zhang, F. and Du, Y. (2007): Synthesis of chaoite-like macrotubes at low temperature and ambient pressure. Carbon 45, 2946-2950.

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

Chaoite

C

hexagonal : 6/mmm : P6/mmm

1.CB.05

Graphite

C

hexagonal : 6/mmm : P63/mmc

1.CB.05

'Fullerite'

C60

1.CB.05

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

Graphite

C

hexagonal : 6/mmm : P63/mmc

I/B.02-010

Chaoite

C

hexagonal : 6/mmm : P6/mmm

I/B.02-020

Moissanite

SiC

hexagonal : 6mm : P63mc

I/B.02-030

Diamond

C

kubisch : m3m : Fd3m

I/B.02-040

Lonsdaleite

C

hexagonal : 6/mmm : P63/mmc

I/B.02-050

'Fullerite'

C60

I/B.02-060

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

Graphite

C

hexagonal : 6/mmm : P63/mmc

1.DA.100

Diamond

C

kubisch : m3m : Fd3m

1.DA.110

Chaoite

C

hexagonal : 6/mmm : P6/mmm

1.DA.130

Lonsdaleite

C

hexagonal : 6/mmm : P63/mmc

1.DA.140

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

Arsenic

As

trigonal : 3m : R3m

01.03.01.01

Antimony

Sb

trigonal : 3m : R3m

01.03.01.02

Stibarsen

SbAs

trigonal : 3m : R3m

01.03.01.03

Bismuth

Bi

trigonal : 3m : R3m

01.03.01.04

Stistaite

SnSb

01.03.01.05

Arsenolamprite

As

orthorhombisch : mmm : Bmab

01.03.02.01

Pararsenolamprite

As

orthorhombisch : mm2 : Pmn21, P21nm

01.03.02.02

Paradocrasite

Sb2(Sb,As)2

monoklin : 2 : C2

01.03.03.01

Selenium

Se

trigonal : 32 : P3121

01.03.04.01

Tellurium

Te

trigonal : 32, 32 : P3221, P3121

01.03.04.02

Rosickýite

S

monoklin : 2/m : P2/c

01.03.05.02

Diamond

C

kubisch : m3m : Fd3m

01.03.06.01

Lonsdaleite

C

hexagonal : 6/mmm : P63/mmc

01.03.06.03

Chaoite

C

hexagonal : 6/mmm : P6/mmm

01.03.06.04

Silicon

Si

kubisch : m3m : Fd3m

01.03.07.01

Sinoite

Si2N2O

orthorhombisch : mm2 : Cmc21

01.03.09.01

Other languages

German

Chaoit

French

Chaoite

English

Chaoite

Spanish

Chaoíta

Russian

Чаоит

Simplified Chinese

亮石墨

Simplified Chinese

赵石墨

Japanese

チャオアイト

IMA Number

IMA 1968-019

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Чаоит

Mineral Dealer

German pages

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

Locations with GPS information