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Pumpellyite-(Al) (Pumpellyit-(Al))

Pictures (7 Images total)

Pumpellyit (Al)
Views (File:
1179062415
): 2105
Pumpellyit (Al)
Lavrion, Vrissaki;
Copyright: Fritz Schreiber; Contribution: Erik
Location: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Velatouri/Siri Minen/Cap Vrissaki
Mineral: Pumpellyite-(Al)
Image: 1179062415
Rating: 4 (votes: 2)
License: Usage for Mineralienatlas project only
Pumpellyit (Al)

Lavrion, Vrissaki;
Copyright: Fritz Schreiber
Contribution: Erik 2007-05-13
Locality: Cap Vrissaki / Siri Minen / Velatouri / Lavrion (Laurion), Bergbaudistrikt / Lavreotiki / East Attica / Attika (Attikí, Attica) / Griechenland
Pumpellyit-(Al)
Views (File:
1407707826
): 1040
Pumpellyit-(Al)
Bildbreite: 6 mm, Fundort: La Flèche, Bertrix, Neufchâteau, Luxembourg Provinz, Belgien
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Belgien/Wallonie/Luxemburg (Luxembourg), Provinz/Neufchâteau, Bezirk/Bertrix/La Flèche
Mineral: Pumpellyite-(Al)
Image: 1407707826
Rating: 4 (votes: 1)
License: Usage for Mineralienatlas project only
Pumpellyit-(Al)

Bildbreite: 6 mm, Fundort: La Flèche, Bertrix, Neufchâteau, Luxembourg Provinz, Belgien
Copyright: Luigi Chiappino
Contribution: thdun5 2014-08-10
Locality: La Flèche / Bertrix / Neufchâteau, Bezirk / Luxemburg (Luxembourg), Provinz / Wallonie / Belgien
Pumpellyit
Views (File:
1398453746
): 1122
Pumpellyit
Nadelige grüne Kristalle, BB = 4,2 mm; Fundort: Creag Brimishgan, Loch Na Keal, Isle of Mull, Strathclyde (Argyllshire), Scotland, UK.
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A014613, Donator: Manfred Seitz
Location: UK/Schottland/Highland/Isle of Mull/Creag Brimishgan
Mineral: Pumpellyite-(Al)
Image: 1398453746
License: Usage for Mineralienatlas project only
Pumpellyit (SNr: A014613)

Nadelige grüne Kristalle, BB = 4,2 mm; Fundort: Creag Brimishgan, Loch Na Keal, Isle of Mull, Strathclyde (Argyllshire), Scotland, UK.
Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2014-04-25
Locality: Creag Brimishgan / Isle of Mull / Highland / Schottland / UK
Pumpellyit-(Al)
Views (File:
1408982672
): 683
Pumpellyit-(Al)
Bildbreite: 4 mm, Fundort: La Flèche, Bertrix, Neufchâteau, Luxembourg Provinz, Belgien
Copyright: Richard De Nul; Contribution: thdun5
Location: Belgien/Wallonie/Luxemburg (Luxembourg), Provinz/Neufchâteau, Bezirk/Bertrix/La Flèche
Mineral: Pumpellyite-(Al)
Image: 1408982672
License: Usage for Mineralienatlas project only
Pumpellyit-(Al)

Bildbreite: 4 mm, Fundort: La Flèche, Bertrix, Neufchâteau, Luxembourg Provinz, Belgien
Copyright: Richard De Nul
Contribution: thdun5 2014-08-25
Locality: La Flèche / Bertrix / Neufchâteau, Bezirk / Luxemburg (Luxembourg), Provinz / Wallonie / Belgien
Pumpellyit-(Al)
Views (File:
1408982705
): 984
Pumpellyit-(Al)
Bildbreite: 4 mm, Fundort: La Flèche, Bertrix, Neufchâteau, Luxembourg Provinz, Belgien
Copyright: Richard De Nul; Contribution: thdun5
Location: Belgien/Wallonie/Luxemburg (Luxembourg), Provinz/Neufchâteau, Bezirk/Bertrix/La Flèche
Mineral: Pumpellyite-(Al)
Image: 1408982705
License: Usage for Mineralienatlas project only
Pumpellyit-(Al)

Bildbreite: 4 mm, Fundort: La Flèche, Bertrix, Neufchâteau, Luxembourg Provinz, Belgien
Copyright: Richard De Nul
Contribution: thdun5 2014-08-25
Locality: La Flèche / Bertrix / Neufchâteau, Bezirk / Luxemburg (Luxembourg), Provinz / Wallonie / Belgien

Collectors Summary

Color smaragdgrün - weiß, z.T. mit bläulichem Stich
Streak color farblos
Lustre Glasglanz
Hardness (Mohs) 5.5
Cleavages vollkommen (100)
Crystal System monoklin, A2/m
Morphology Bildet nadelige Kristalle, die sich zu radialfaserigen Aggregaten bis 5mm Durchmesser vereinigen.

Chemism

Chemical formula

Ca2(Al,Fe2+,Mg)Al2(SiO4)(Si2O7)(OH,O)2·H2O

Chemical composition

Aluminium, Calcium, Eisen, Magnesium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 481.26928982 u; Number of atoms in the formula: 25.5

Info

Empirical formula:

Ca2(Al0.6Fe0.3Mg0.1)Al2(SiO4)(Si2O7)((OH)0.75O0.25)2·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.73

3.5

13.73

1.0079470

3.5278145
Oxygen

O

46.54

14

54.90

15.9994300

223.9920200
Magnesium

Mg

0.51

0.1

0.39

24.3050600

2.4305060
Aluminium

Al

14.58

2.6

10.20

26.9815382

70.1519993
Silicon

Si

17.51

3

11.76

28.0855300

84.2565900
Calcium

Ca

16.66

2

7.84

40.0784000

80.1568000
Iron

Fe

3.48

0.3

1.18

55.8452000

16.7535600

Analysis wt%

SiO2 : 37.52, Al2O3 : 25.63, FeO : 4.97, MgO : 1.99, CaO : 23.21, H2O : 6.71 (Ref: European Journal of Mineralogy 2007)

Strunz 9th edition incl. updates

9.BG.20

9: Silikate (Germanate)
B: Gruppensilikate (Sorosilikate)
G: Gruppen(Soro)-Silikate mit gemischten SiO4 und Si2O7 Gruppen; Kationen in oktahedraler [6] und größerer Koordination
20:

Lapis Classification

VIII/C.24-053

VIII: SILIKATE
C: Gruppensilikate
24: Mischstrukturen mit [SiO4] 4--Inseln und [Si2O7] 6--Gruppen; Pumpellyit-Gruppe

Classification by Hölzel

9.BN.506

9: SILICATES
B: Sorosilicates
N: With SiO4 + Si2O7
5: Pumpellyite-Group

IMA status

anerkannt 2005

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Pumpellyite group

Optical Properties

Color

smaragdgrün - weiß, z.T. mit bläulichem Stich

Streak color

farblos

Diaphaneity (Transparency)

durchscheinend - transparent

Lustre

Glasglanz

max. Birefringence

0.013
Birefringence chart\! Pumpellyite-(Al) title=Birefringence chart Pumpellyite-(Al)

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

1.678

RI value β

1.680

RI value γ / ε

1.691

Ri mean

1.683

2V angle

Biaxial (+) 46°

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

A2/m

Cell parameters a (Å)

8.818

Cell parameters b (Å)

5.898

Cell parameters c (Å)

19.126

Cell parameters a/b or c/a

1.495

Cell parameters c/b

3.243

Cell parameters α

90°

Cell parameters β

97.27

Cell parameters γ

90°

Z

4

Volume (ų)

986.719

X-Ray Powder Diffraction

8.735(35), 4.371(65), 3.787(80), 3.040(70), 2.912(95), 2.895(100), 2.731(40), 2.191(45)
XRD chart Pumpellyite-(Al)

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

Morphology

Bildet nadelige Kristalle, die sich zu radialfaserigen Aggregaten bis 5mm Durchmesser vereinigen.

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5.5

VHN (Hardness Vickers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.24 berechnet

3.239 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen (100)

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

Belgien/Wallonie/Luxemburg (Luxembourg), Provinz/Neufchâteau, Bezirk/Bertrix/La Flèche

Preface

Associations

Calcit, Chlorit, K-Feldspat

Name from

der chemischen Zusammensetzung mit Aluminium und der kristallschemischen Verwandschaft mit den Mineralien der Pumpellyit-Gruppe benannt

Author (Name, Year)

Hatert et al., 2007

References

Canadian Mineralogist 12 (1973), 219
Hatert, F, et al., Eur. J. Mineral. 19 S.247-253
Mineralien Welt 06/08, Steffen Jahn, Die neuen Mineralien 2007 - 2008

IMA group assignments

 
Pumpellyite group
 
 
 

 
 
Julgoldite-(Fe2+)
Ca2Fe2+(Fe3+,Al)2(SiO4)(Si2O7)(OH)2·H2O
monoklin
A2/m

 
 
Julgoldite-(Fe3+)
Ca2Fe3+Fe3+2(Si2O7)(SiO4)O(OH)·H2O
monoklin
A2/m

 
 
Julgoldite-(Mg)
Ca2MgFe3+2(Si2O7)(SiO4)(OH)2·H2O
 
 

 
 
Okhotskite
Ca2Mn2+Mn3+2(Si2O7)(SiO4)(OH)2·H2O
monoklin
A2/m

 
 
Poppiite
Ca2V3+V3+2(Si2O7)(SiO4)(OH,O)2·H2O
monoklin
C2/m

 
 
Pumpellyite-(Al)
Ca2(Al,Fe2+,Mg)Al2(SiO4)(Si2O7)(OH,O)2·H2O
monoklin
A2/m

 
 
Pumpellyite-(Fe2+)
Ca2Fe2+Al2[(OH)2|SiO4|Si2O7]·H2O
monoklin
A2/m

 
 
Pumpellyite-(Fe3+)
Ca2Fe3+Al2(Si2O7)(SiO4)(OH,O)2·H2O
monoklin
A2/m

 
 
Pumpellyite-(Mg)
Ca2MgAl2[(OH)2|SiO4|Si2O7]·H2O
monoklin
A2/m

 
 
Pumpellyite-(Mn2+)
Ca2(Mn2+,Mg)(Al,Mn3+,Fe3+)2[(OH)2|SiO4|Si2O7]·H2O
monoklin
A2/m

 
 
Shuiskite-(Cr)
Ca2CrCr2[SiO4][Si2O6(OH)](OH)2O
monoklin
C2/m

 
 
Shuiskite-(Mg)
Ca2(Mg,Al)(Cr,Al)2[(OH)2|SiO4|Si2O7]·H2O
monoklin
A2/m

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Actuality: 03. Oct 2024 - 16:37:57

Other languages

German

Pumpellyit-(Al)

French

Pumpellyite-(Al)

English

Pumpellyite-(Al)

Spanish

Pumpellyíta-(Al)

Russian

Пумпеллиит-(Al)

Russian

Пумпеллиит-Al

Simplified Chinese

铝绿纤石

CNMNC (IMA)-Number

IMA 2005-016

CNMNC symbol

Symbol

Pmp-Al

Locations with GPS information

IDs

GUSID (Global unique identifier short form) KWl8mnnDqUa4ZqjROGotNw
GUID (Global unique identifier) 9A7C6929-C379-46A9-B866-A8D1386A2D37
Database ID 4417