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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

Preface

Author (Name, Year)

Veniale & Van der Marel, 1969

References

Canadian Mineralogist 19 (1981), 651

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Dozyite

Mg7(Al,Fe3+,Cr)2[(OH)12|Al2Si4O15]

monoklin : m : Cm

9.EC.60

Kulkeite

Na0.35Mg8Al(AlSi7)O20(OH)10

9.EC.60

Tosudite

Na0.5(Al,Mg)6(Si,Al)8O18(OH)12·5H2O

9.EC.60

Aliettite

Ca0.2Mg6(Si,Al)8O20(OH)4·4H2O

9.EC.60

Rectorite

(Na,Ca)Al4(Si,Al)8O20(OH)4·2H2O

9.EC.60

Saliotite

Na0.5Li0.5Al3[(OH)5|AlSi3O10]

monoklin : 2/m : C2/m

9.EC.60

Corrensite

(Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10·nH2O

9.EC.60

'Karpinskite'

(Mg,Ni)2Si2O5(OH)2

9.EC.60

Hydrobiotite

K(Mg,Fe2+)6(Si,Al)8O20(OH)4·nH2O

monoklin : 2/m : C2/m

9.EC.60

Cortesognoite

CaV2Si2O7(OH)2·H2O

orthorhombisch : mmm : Cmcm

9.EC.60

Lunijianlaite

Li0.7Al6.2(Si7AlO20)(OH,O)10

9.EC.60

Brinrobertsite

(Na,K,Ca)0.3(Al,Fe,Mg)4(Si,Al)8O20(OH)4·3.5H2O

9.EC.60

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Lunijianlaite

Li0.7Al6.2(Si7AlO20)(OH,O)10

VIII/H.18-005

Saliotite

Na0.5Li0.5Al3[(OH)5|AlSi3O10]

monoklin : 2/m : C2/m

VIII/H.18-007

Kulkeite

Na0.35Mg8Al(AlSi7)O20(OH)10

VIII/H.18-010

Aliettite

Ca0.2Mg6(Si,Al)8O20(OH)4·4H2O

VIII/H.18-020

Rectorite

(Na,Ca)Al4(Si,Al)8O20(OH)4·2H2O

VIII/H.18-030

'Tarasovite'

(Na,K,H3O,Ca)2Al4[(OH)2|(Si,Al)4O10]2·H2O

VIII/H.18-040

Tosudite

Na0.5(Al,Mg)6(Si,Al)8O18(OH)12·5H2O

VIII/H.18-050

Corrensite

(Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10·nH2O

VIII/H.18-060

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Lunijianlaite

Li0.7Al6.2(Si7AlO20)(OH,O)10

9.EH.100

Dozyite

Mg7(Al,Fe3+,Cr)2[(OH)12|Al2Si4O15]

monoklin : m : Cm

9.EH.110

Kulkeite

Na0.35Mg8Al(AlSi7)O20(OH)10

9.EH.130

Rectorite

(Na,Ca)Al4(Si,Al)8O20(OH)4·2H2O

9.EH.140

Saliotite

Na0.5Li0.5Al3[(OH)5|AlSi3O10]

monoklin : 2/m : C2/m

9.EH.150

Aliettite

Ca0.2Mg6(Si,Al)8O20(OH)4·4H2O

9.EH.170

Tosudite

Na0.5(Al,Mg)6(Si,Al)8O18(OH)12·5H2O

9.EH.180

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Cookeite

LiAl4(Si3Al)O10(OH)8

triklin : 1 : C1

71.04.01.02

'Chromian Clinochlore' (Var.v. Clinochlore)

Mg5(Al,Cr)2Si3O10(OH)8

71.04.01.04

Borocookeite

Li1-1.5Al4-3.5[(OH,F)8|(B,Al)Si3O10]

monoklin : 2/m : C2/m

71.04.01.10

Dozyite

Mg7(Al,Fe3+,Cr)2[(OH)12|Al2Si4O15]

monoklin : m : Cm

71.04.02.01

Lunijianlaite

Li0.7Al6.2(Si7AlO20)(OH,O)10

71.04.02.02

Corrensite

(Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10·nH2O

71.04.02.05

Aliettite

Ca0.2Mg6(Si,Al)8O20(OH)4·4H2O

71.04.02.08

Glagolevite

NaMg6[(OH,O)8|AlSi3O10]·H2O

triklin : 1 : C1

71.04.02.09

Franklinfurnaceite

Ca2(Fe3+,Al)Mn3+Mn32+Zn2Si2O10(OH)8

monoklin : 2 : C2

71.04.03.01

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