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Aliettite (Aliettit)

Pictures (1 Images total)

Aliettit xx
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Aliettit xx
Bildbreite: 7 mm; Fundort: Ingichka, Zirabulak-Gebirge, Provinz Samarkand, Usbekistan
Copyright: Leonardus; Contribution: slugslayer
Location: Usbekistan/Samarqand (Samarkand), Provinz/Paxtachi (Pakhtachi), Distrikt/Zirbulak-Gebirge/Grube Ingichka
Mineral: Aliettite
Image: 1217195972
License: Usage for Mineralienatlas project only
Aliettit xx

Bildbreite: 7 mm; Fundort: Ingichka, Zirabulak-Gebirge, Provinz Samarkand, Usbekistan
Copyright: Leonardus
Contribution: slugslayer 2008-07-27
Locality: Grube Ingichka / Zirbulak-Gebirge / Paxtachi (Pakhtachi), Distrikt / Samarqand (Samarkand), Provinz / Usbekistan

Collectors Summary

Color gelbbraun, grau, grün
Streak color weiß
Hardness (Mohs) 1.00 - 2.00
Solubility +++ Säuren
Crystal System hexagonal,

Chemism

Chemical formula

Ca0.2Mg6(Si,Al)8O20(OH)4·4H2O

Chemical composition

Aluminium, Calcium, Magnesium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 836.4017004 u; Number of atoms in the formula: 54.2

Info

Empirical formula:

Ca0.2Mg6(Si0.75Al0.25)8O20(OH)4·4H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.45

12

22.14

1.0079470

12.0953640
Oxygen

O

53.56

28

51.66

15.9994300

447.9840400
Magnesium

Mg

17.44

6

11.07

24.3050600

145.8303600
Aluminium

Al

6.45

2

3.69

26.9815382

53.9630764
Silicon

Si

20.15

6

11.07

28.0855300

168.5131800
Calcium

Ca

0.96

0.2

0.37

40.0784000

8.0156800

Analysis wt%

SiO2 : 57.30, MgO : 27.47, CaO : 0.97, H2O : 13.86 (Ref: American Mineralogist 53)

Strunz 9th edition incl. updates

9.EC.60

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
C: Schichtsilikate (Phyllosilikate) mit Glimmer Tafeln, zusammengesetzt aus tetrahedralen oder octahedralen Netzen
60:Corrensit-Gruppe

Lapis Classification

VIII/H.18-020

VIII: SILIKATE
H: Schichtsilikate
18: Tonminerale, regulär geschichtet; Montmorillonit-Gruppe

Classification by Hölzel

9.EH.170

9: SILICATES
E: Phyllosilicates
H: Interstratificated Micas
1: Monoclinic Rectorite-Group

Dana 8th edition

71.04.02.08

71: Phyllosilicate Minerals
04: Phyllosilicates Phyllosilicate Sheets of Six-Membered Rings interlayered 1:1, 2:1, and octahedra
02: Interstratified Chlorite-Smectite group

IMA status

Neudefinition von der CNMNC anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelbbraun, grau, grün

Streak color

weiß

max. Birefringence

0.011
Birefringence chart\! Aliettite title=Birefringence chart Aliettite

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

1.556

RI value γ / ε

1.567

Ri mean

1.562

2V angle

Uniaxial (-)

Crystallography

Crystal System

hexagonal

Cell parameters a (Å)

5.216

Cell parameters b (Å)

-

Cell parameters c (Å)

24.6

Cell parameters a/b or c/a

4.716

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

1

Volumne (ų)

579.617

X-Ray Powder Diffraction

24.0(20),
11.6(100),
4.54(100),
3.2(50),
2.62(90),
1.725(40),
1.520(90),
1.314(70)
XRD chart Aliettite

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

Physical Properties

Hardness (Mohs)

1.00 - 2.00

VHN (Hardness Vickers)

18 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.15 (gemessen) 2.396 (berechnet)

2.396 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Italien/Emilia-Romagna, Region/Parma, Provinz/Albareto/Monte Chiaro

Preface

Author (Name, Year)

Veniale & Van der Marel, 1969

References

Canadian Mineralogist 19 (1981), 651

Other languages

German

Aliettit

Spanish

Aliettita

English

Aliettite

French

Aliettite

Russian

Алиэттит

CNMNC symbol

Symbol

Ali

Locations with GPS information