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Chayesite (Chayesit)

Pictures (15 Images total)

Chayesit
Views (File:
1288017086
): 3058, Rating: 9.4
Chayesit
Größe: 4 mm; Fundort: Pauliberg bei Landsee in Burgenland, Österreich
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: Österreich/Burgenland/Oberpullendorf, Bezirk/Markt St. Martin/Landsee/Pauliberg
Mineral: Chayesite
Image: 1288017086
Rating: 9.4 (votes: 5)
License: Usage for Mineralienatlas project only
Chayesit

Größe: 4 mm; Fundort: Pauliberg bei Landsee in Burgenland, Österreich
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-10-25
Locality: Pauliberg / Landsee / Markt St. Martin / Oberpullendorf, Bezirk / Burgenland / Österreich
Chayesit
Views (File:
1285407746
): 3443, Rating: 9.25
Chayesit
Kristallgröße: 2,17 mm, Fundort: Pauliberg bei Landsee in Burgenland, Österreich
Copyright: Matteo Chinellato; Contribution: thdun5
Collection: Domenico Preite
Location: Österreich/Burgenland/Oberpullendorf, Bezirk/Markt St. Martin/Landsee/Pauliberg
Mineral: Chayesite
Image: 1285407746
Rating: 9.25 (votes: 4)
License: Usage for Mineralienatlas project only
Chayesit

Kristallgröße: 2,17 mm, Fundort: Pauliberg bei Landsee in Burgenland, Österreich
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: thdun5 2010-09-25
Locality: Pauliberg / Landsee / Markt St. Martin / Oberpullendorf, Bezirk / Burgenland / Österreich
Chayesit
Views (File:
1319361788
): 1500
Chayesit
Größe: bis 0,5 mm; Fundort: Steinbruch Pauliberg, Landsee, Burgenland, Österreich
Copyright: Enrico Bonacina; Contribution: Hg
Location: Österreich/Burgenland/Oberpullendorf, Bezirk/Markt St. Martin/Landsee/Pauliberg
Mineral: Chayesite
Image: 1319361788
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Chayesit

Größe: bis 0,5 mm; Fundort: Steinbruch Pauliberg, Landsee, Burgenland, Österreich
Copyright: Enrico Bonacina
Contribution: Hg 2011-10-23
Locality: Pauliberg / Landsee / Markt St. Martin / Oberpullendorf, Bezirk / Burgenland / Österreich
Chayesit
Views (File:
1240733575
): 1270
Chayesit
FO: Pauliberg bei Landsee in Burgenland, Österreich; dicktafelige rotbraune Kristalle zusammen mit Tridymit; BB:4,2 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A014090, Donator: Manfred Seitz
Location: Österreich/Burgenland/Oberpullendorf, Bezirk/Markt St. Martin/Landsee/Pauliberg
Mineral: Chayesite
Image: 1240733575
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Chayesit (SNr: A014090)

FO: Pauliberg bei Landsee in Burgenland, Österreich; dicktafelige rotbraune Kristalle zusammen mit Tridymit; BB:4,2 mm
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2009-04-26
Locality: Pauliberg / Landsee / Markt St. Martin / Oberpullendorf, Bezirk / Burgenland / Österreich
Chayesit
Views (File:
1248953113
): 1238
Chayesit
Fundort: Pauliberg bei Landsee, Oberwart, Burgenland, Österreich. BB: 1mm, blaue, stengelige Chayesit Kristalle mit Pyroxen.
Copyright: Hannes Osterhammer; Contribution: Katschcalcit
Collection: Josef Metzger
Location: Österreich/Burgenland/Oberpullendorf, Bezirk/Markt St. Martin/Landsee/Pauliberg
Mineral: Chayesite
Image: 1248953113
Rating: 7.5 (votes: 2)
License: Usage for Mineralienatlas project only
Chayesit

Fundort: Pauliberg bei Landsee, Oberwart, Burgenland, Österreich. BB: 1mm, blaue, stengelige Chayesit Kristalle mit Pyroxen.
Collection: Josef Metzger
Copyright: Hannes Osterhammer
Contribution: Katschcalcit 2009-07-30
Locality: Pauliberg / Landsee / Markt St. Martin / Oberpullendorf, Bezirk / Burgenland / Österreich
Chayesit
Views (File:
1399132591
): 1103
Chayesit
Blockiger blauer Kristall mit Quarz und Pyroxen, BB = 3,2 mm; Fundort: Pauliberg bei Landsee, Oberwart, Burgenland, Österreich.
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A016343, Donator: Josef Metzger
Location: Österreich/Burgenland/Oberpullendorf, Bezirk/Markt St. Martin/Landsee/Pauliberg
Mineral: Chayesite
Image: 1399132591
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Chayesit (SNr: A016343)

Blockiger blauer Kristall mit Quarz und Pyroxen, BB = 3,2 mm; Fundort: Pauliberg bei Landsee, Oberwart, Burgenland, Österreich.
Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2014-05-03
Locality: Pauliberg / Landsee / Markt St. Martin / Oberpullendorf, Bezirk / Burgenland / Österreich

You find additional Chayesit specimen at the Geolitho Museum

Collectors Summary

Color blau
Streak color weiß
Hardness (Mohs) 5 - 6
Crystal System hexagonal, P6/mcc

Chemism

Chemical formula

KMg4Fe3+[Si12O30]

Chemical composition

Eisen, Magnesium, Silicium, Kalium, Sauerstoff

Unit weight: 1009.17301 u; Number of atoms in the formula: 48

Info

Empirical formula:

KMg4Fe[Si12O30]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

47.56

30

62.50

15.9994300

479.9829000
Magnesium

Mg

9.63

4

8.33

24.3050600

97.2202400
Silicon

Si

33.40

12

25.00

28.0855300

337.0263600
Potassium

K

3.87

1

2.08

39.0983100

39.0983100
Iron

Fe

5.53

1

2.08

55.8452000

55.8452000

Analysis wt%

Ø SiO2 : 69.19, Fe2O3 : 4.88, FeO : 6.60, MgO : 12.71, K2O : 5.17 (Ref: American Mineralogist 89)

Strunz 9th edition incl. updates

9.CM.05

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
M: ~[Si6O18]12- sechser-Doppelringe
05:Milarit-Gruppe

Lapis Classification

VIII/E.22-050

VIII: SILIKATE
E: Ringsilikate
22: Doppelte Sechserringe [Si12O30] 12-; Milarit/Osumilith-Gruppe

Classification by Hölzel

9.CF.415

9: SILICATES
C: Cyclosilicates
F: ~[Si12O30]12--Rings Milarite-Group

Dana 8th edition

63.02.01a.02

63: Cyclosilicates Cyclosilicate Condensed Rings
02: Cyclosilicates Cyclosilicate Condensed Rings 6-membered rings
01a: Milarite - Osumilite group (Milarite - Osumilite subgroup)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

blau

Streak color

weiß

max. Birefringence

0.003
Birefringence chart\! Chayesite title=Birefringence chart Chayesite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.575

RI value γ / ε

1.578

Ri mean

1.576

2V angle

Uniaxial (+)

Crystallography

Crystal System

hexagonal

Class (H-M)

6/mmm

Space Group number

192

Space Group

P6/mcc

Cell parameters a (Å)

10.153

Cell parameters b (Å)

-

Cell parameters c (Å)

14.388

Cell parameters a/b or c/a

1.417

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

2

Volumne (ų)

1284.458

X-Ray Powder Diffraction

7.194(70),
5.076(100),
4.184(50),
3.751(100),
3.329(50),
3.238(100),
2.935(50),
2.784(70)
XRD chart Chayesite

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 - 6

Density (g/cm³)

2.68

2.609 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

USA/Utah/Summit Co./Woodland/Moon Canyon

Type material

Mineralogische Sammlung, Ruhr-Universität Bochum

Preface

Name from

Dr. Felix Chayes, Carnegie Institution's Geophysical Laboratory, Washington D.C., USA

Author (Name, Year)

Velde & Medenbach & Wagner & Schreyer, 1989

References

American Mineralogist 74 (1989), 1368

CNMNC Newsletter No. 50; Mineralogical Magazine, 31 [Formel]

Other languages

German

Chayesit

Spanish

Chayesita

French

Chayesite

English

Chayesite

Russian

Чейесит

CNMNC (IMA)-Number

IMA 1987-059

CNMNC symbol

Symbol

Cys

Locations with GPS information