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Petarasite

Pictures (8 Images total)

Petarasit
Views (File:
1221555447
): 922
Petarasit
Bildbreite: 2 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Petarasite
Image: 1221555447
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Petarasit

Bildbreite: 2 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada

Copyright: Stephan Wolfsried
Contribution: Hg 2008-09-16
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada
Petarasit
Views (File:
1182808597
): 801
Petarasit
Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Petarasite
Image: 1182808597
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Petarasit

Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada

Copyright: Stephan Wolfsried
Contribution: Hg 2007-06-25
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada
Petarasit (rosa) mit Katapleit (bronzefarben)
Views (File:
1244953549
): 788
Petarasit (rosa) mit Katapleit (bronzefarben)
Bildbreite: 12 mm; Fundort: Tuliok, Kukisvumchorr, Khibiny, Kola, Murmansk, Russland
Copyright: Pavel M. Kartashov; Contribution: slugslayer
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Chibiny (Khibiny)/Kukisvumchorr/östlicher Hang/Tuliok-Fluss-Oberlauf
Mineral: Petarasite
Image: 1244953549
Rating: 6 (votes: 2)
License: Usage for Mineralienatlas project only
Petarasit (rosa) mit Katapleit (bronzefarben)

Bildbreite: 12 mm; Fundort: Tuliok, Kukisvumchorr, Khibiny, Kola, Murmansk, Russland

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-14
Locality: Tuliok-Fluss-Oberlauf / östlicher Hang / Kukisvumchorr / Chibiny (Khibiny) / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Petarasit
Views (File:
1221578923
): 725
Petarasit
Bildbreite: 2 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Petarasite
Image: 1221578923
Rating: 5 (votes: 2)
License: Usage for Mineralienatlas project only
Petarasit

Bildbreite: 2 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada

Copyright: Stephan Wolfsried
Contribution: Hg 2008-09-16
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada
Petarasit
Views (File:
1221578823
): 586
Petarasit
Bildbreite: 2,5 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Petarasite
Image: 1221578823
License: Usage for Mineralienatlas project only
Petarasit

Bildbreite: 2,5 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada

Copyright: Stephan Wolfsried
Contribution: Hg 2008-09-16
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada
Petarasit
Views (File:
1221578871
): 483
Petarasit
Bildbreite: 2,5 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Petarasite
Image: 1221578871
License: Usage for Mineralienatlas project only
Petarasit

Bildbreite: 2,5 mm; Fundort: Poudrette quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada

Copyright: Stephan Wolfsried
Contribution: Hg 2008-09-16
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada

You find additional specimen at the Geolitho Museum

Collectors Summary

Color bräunlichgelb, grünlichgelb
Streak color weiß
Hardness (Mohs) 5.25
Crystal System monoklin, P21/m

Chemism

Chemical formula

Na5Zr2Si6O18(Cl,OH)·2H2O

Chemical composition

Chlor, Natrium, Silicium, Zirconium, Sauerstoff, Wasserstoff

Unit weight: 820.77256325 u; Number of atoms in the formula: 38.25

Info

Empirical formula:

Na5Zr2Si6O18(Cl0.75(OH)0.25)·2H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.52

4.25

11.11

1.0079470

4.2837748

Oxygen

O

39.47

20.25

52.94

15.9994300

323.9884575

Sodium

Na

14.00

5

13.07

22.9897702

114.9488510

Silicon

Si

20.53

6

15.69

28.0855300

168.5131800

Chlorine

Cl

3.24

0.75

1.96

35.4532000

26.5899000

Zirconium

Zr

22.23

2

5.23

91.2242000

182.4484000

Analysis wt%

Ø SiO2 : 42.90, ZrO2 : 29.50, CaO : 0.88, Na2O : 17.30, H2O : 7.09, Cl : 2.04 (Ref: Canadian Mineralogist 80)

Strunz 9th edition incl. updates

9.CJ.40

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
J: ~[Si6O18]12- sechser-Einfachringe, ohne inselartig, komplexe [Anionen]
40:Petarasit-Gruppe

Lapis Classification

VIII/E.16-070

VIII: SILIKATE
E: Ringsilikate
16: Sechserringe [Si6O18] 12-; Lovozerit-Gruppe

Classification by Hölzel

9.CD.600

9: SILICATES
C: Cyclosilicates
D: ~[Si6O18]-rings, without borate
6: With other anions

Dana 8th edition

61.01.02b.03

61: Cyclosilicates Cyclosilicate Six-Membered Rings
01: Cyclosilicates Cyclosilicate Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
02b: Lovozerite group (Ortho and MON subgroup)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

bräunlichgelb, grünlichgelb

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.036

Birefringence chart\! Petarasite title=Birefringence chart Petarasite

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

1.596

RI value β

1.598

RI value γ / ε

1.632

Ri mean

1.609

2V angle

Biaxial (+) 29°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

11

Space Group

P21/m

Cell parameters a (Å)

10.796

Cell parameters b (Å)

14.493

Cell parameters c (Å)

6.623

Cell parameters a/b or c/a

0.745

Cell parameters c/b

0.457

Cell parameters α

90°

Cell parameters β

114.22

Cell parameters γ

90°

Z

2

Volume (ų)

945.061

X-Ray Powder Diffraction

7.25(70),
6.09(40),
4.96(10),
4.10(100),
3.220(30),
3.041(30),
2.924(100),
1.729(20)

XRD chart Petarasite

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)

5.25

VHN (Hardness Vickers)

470 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.88

2.884 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Chao & Chen & Baker, 1980

References

Canadian Mineralogist 18 (1980), 497

Other languages

German

Petarasit

Spanish

Petarasita

French

Petarasite

English

Petarasite

Russian

Петарасит

CNMNC (IMA)-Number

IMA 1979-063

CNMNC symbol

Symbol

Pra

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Ir5qPbwH4UWkxaOkEkRBZg
GUID (Global unique identifier) 3D6ABE22-07BC-45E1-A4C5-A3A412444166
Database ID 3007