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Giuseppettite

Pictures (3 Images total)

Giuseppettit
Views (File:
1276882565
): 1615
Giuseppettit
Bildbreite: 10 mm, Fundort: Biachella-Tal, Sacrofano, Latium, Italien
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Italien/Latium (Lazio), Region/Rom, Metropolitanstadt/Sacrofano/Sacrofano-Caldera/Biachella-Tal
Mineral: Giuseppettite
Image: 1276882565
Rating: 4 (votes: 2)
License: Usage for Mineralienatlas project only
Giuseppettit

Bildbreite: 10 mm, Fundort: Biachella-Tal, Sacrofano, Latium, Italien
Copyright: Luigi Chiappino
Contribution: thdun5 2010-06-18
Locality: Biachella-Tal / Sacrofano-Caldera / Sacrofano / Rom, Metropolitanstadt / Latium (Lazio), Region / Italien
Giuseppettit
Views (File:
1393262320
): 802
Giuseppettit
Dicktafeliger farbloser Kristall mit Pyroxen, BB = 3,8 mm, Fundort: Biachella-Tal, Sacrofano, Latium, Italien.
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A013272, Donator: Melanie Albert
Location: Italien/Latium (Lazio), Region/Rom, Metropolitanstadt/Sacrofano/Sacrofano-Caldera/Biachella-Tal
Mineral: Giuseppettite
Image: 1393262320
License: Usage for Mineralienatlas project only
Giuseppettit (SNr: A013272)

Dicktafeliger farbloser Kristall mit Pyroxen, BB = 3,8 mm, Fundort: Biachella-Tal, Sacrofano, Latium, Italien.
Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2014-02-24
Locality: Biachella-Tal / Sacrofano-Caldera / Sacrofano / Rom, Metropolitanstadt / Latium (Lazio), Region / Italien
Giuseppettit
Views (File:
1703336164
): 44
Giuseppettit
Lila-blauer Giuseppettit (ohne Maßstab) von der Typlokalität Biachella-Tal, Sacrofano, Rom, Latium, IT.
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: Italien/Latium (Lazio), Region/Rom, Metropolitanstadt/Sacrofano/Sacrofano-Caldera/Biachella-Tal
Mineral: Giuseppettite
Image: 1703336164
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Giuseppettit

Lila-blauer Giuseppettit (ohne Maßstab) von der Typlokalität Biachella-Tal, Sacrofano, Rom, Latium, IT.
Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-23
Locality: Biachella-Tal / Sacrofano-Caldera / Sacrofano / Rom, Metropolitanstadt / Latium (Lazio), Region / Italien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color blauviolett
Streak color weiß
Hardness (Mohs) 6.00 - 7.00
Solubility +++ Säuren
Crystal System trigonal, P31c

Chemism

Chemical formula

Na42K16Ca6Si48Al48O192(SO4)10Cl2·5H2O

Chemical composition

Aluminium, Calcium, Chlor, Natrium, Silicium, Kalium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 8668.338762 u; Number of atoms in the formula: 419

Info

Empirical formula:

Na42K16Ca6Si48Al48O192(SO4)10Cl2·5H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.12

10

2.39

1.0079470

10.0794700
Oxygen

O

43.74

237

56.56

15.9994300

3,791.8649100
Sodium

Na

11.14

42

10.02

22.9897702

965.5703484
Aluminium

Al

14.94

48

11.46

26.9815382

1,295.1138336
Silicon

Si

15.55

48

11.46

28.0855300

1,348.1054400
Sulfur

S

3.70

10

2.39

32.0655000

320.6550000
Chlorine

Cl

0.82

2

0.48

35.4532000

70.9064000
Potassium

K

7.22

16

3.82

39.0983100

625.5729600
Calcium

Ca

2.77

6

1.43

40.0784000

240.4704000

Analysis wt%

SiO2 : 33.25, Al2O3 : 28.56, CaO : 4.85, Na2O : 14.37, K2O : 8.00, SO3 : 9.92, Cl : 0.78 (Ref: Neues Jahrbuch für Mineralogie, (Monatshefte) 81)

Strunz 9th edition incl. updates

9.FB.05

9: Silikate (Germanate)
F: Gerüstsilikate (Tektosilikate) ohne zeolithisches H2O
B: Gerüstsilikate (Tektosilicates) mit weiteren [Anionen]
05:Cancrinit-Gruppe

Lapis Classification

VIII/J.09-043

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
9: Mit tetraederfremden Anionen; Cancrinit-Gruppe

Classification by Hölzel

9.FE.730

9: SILICATES
F: Tektosilicates
E: Hexagonal or trigonal with other Anions
7: Giuseppettite-Group - trigonal, axis a~~12A and c=n*~~5A, n>5

Dana 8th edition

76.02.05.07

76: Tektosilicates Tectosilicate Al-Si Framework
02: Tektosilicates Tectosilicate Al-Si Framework Feldspathoids and related species
05: Cancrinite group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Zeolite group  ⇒ GIU zeolite structure group

Optical Properties

Color

blauviolett

Streak color

weiß

max. Birefringence

0.016
Birefringence chart\! Giuseppettite title=Birefringence chart Giuseppettite

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

1.491

RI value γ / ε

1.507

Ri mean

1.496

2V angle

Uniaxial (+)

Crystallography

Crystal System

trigonal

Class (H-M)

3m

Space Group number

159

Space Group

P31c

Cell parameters a (Å)

12.856

Cell parameters b (Å)

-

Cell parameters c (Å)

42.256

Cell parameters a/b or c/a

3.287

Cell parameters c/b

-

Z

1

Volume (ų)

6048.264

X-Ray Powder Diffraction

6.42(60),
4.318(50),
3.712(100),
3.446(80),
3.285(50),
3.126(70),
2.640(60),
2.141(60)
XRD chart Giuseppettite

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)

6.00 - 7.00

VHN (Hardness Vickers)

960 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.35 (gemessen)

2.38 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Italien/Latium (Lazio), Region/Rom, Metropolitanstadt/Sacrofano/Sacrofano-Caldera/Biachella-Tal

Preface

Author (Name, Year)

Mazzi & Tadini, 1981

References

Microporous and Mesoporous Materials 73 (2004), 129

IMA group assignments

Other languages

German

Giuseppettit

Spanish

Giuseppettita

English

Giuseppettite

French

Giuseppettite

Russian

Джузеппеттит

Traditional Chinese

久矽鋁鈉石

Simplified Chinese

久硅铝钠石

CNMNC (IMA)-Number

IMA 1979-064

CNMNC symbol

Symbol

Giu

IDs

GUSID (Global unique identifier short form) x8I5Oe46oUWUBcRyNSZucg
GUID (Global unique identifier) 3939C2C7-3AEE-45A1-9405-C47235266E72
Database ID 1392