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Dozyite

Additional Functions

Collectors Summary

Color farblos, hellviolett, hellgrün
Streak color weiß
Lustre Perlmuttglanz
Hardness (Mohs) 2.5
Cleavages vollkommen {001}
Fracture nicht genannt
Crystal System monoklin, Cm

Chemism

Chem­ical formula

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

Chem­ical com­po­si­tion

Aluminium, Chrom, Eisen, Magnesium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 856.80478824 u; Number of atoms in the formula: 54

Info

Empirical formula:

Mg7(Al0.6Fe0.3Cr0.1)2[(OH)12Al2Si4O15]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.41

12

22.22

1.0079470

12.0953640

Oxygen

O

50.42

27

50.00

15.9994300

431.9846100

Magnesium

Mg

19.86

7

12.96

24.3050600

170.1354200

Aluminium

Al

10.08

3.2

5.93

26.9815382

86.3409222

Silicon

Si

13.11

4

7.41

28.0855300

112.3421200

Chromium

Cr

1.21

0.2

0.37

51.9961600

10.3992320

Iron

Fe

3.91

0.6

1.11

55.8452000

33.5071200

Anal­y­sis wt%

SiO2 : 29.69, Al2O3 : 20.29, MgO : 34.74, FeO : 1.63, H2O : 12.20 (Ref: American Mineralogist 95)

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.27-095

VIII: SILIKATE
H: Schichtsilikate
27: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Serpentin-Gruppe

Clas­sifica­tion by Hölzel

9.EH.110

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

Dana 8th edi­tion

71.04.02.01

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

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos, hellviolett, hellgrün

Streak color

weiß

Diaphane­ity (Trans­parency)

durchscheinend

Lus­tre

Perlmuttglanz

max. Birefrin­gence

0.006

Birefringence chart\! Dozyite title=Birefringence chart Dozyite

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

1.575

RI value β

1.575

RI value γ / ε

1.581

Ri mean

1.577

2V angle

Biaxial (+) 0°

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

m

Space Group number

8

Space Group

Cm

Cell param­e­ters a (Å)

5.323

Cell param­e­ters b (Å)

9.214

Cell param­e­ters c (Å)

21.45

Cell param­e­ters a/b or c/a

0.578

Cell param­e­ters c/b

2.328

Cell param­e­ters α

90°

Cell param­e­ters β

94.43

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

1048.896

X-Ray Pow­der Diffrac­tion

7.1(100),
4.61(60),
3.560(80),
2.608(20),
2.557(40),
2.427(60),
1.536(70),
1.501(20)

XRD chart Dozyite

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)

2.5

VHN (Hard­ness Vick­ers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.66

2.713 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen {001}

Frac­ture

nicht genannt

Tenac­ity

nicht erwähnt

Preface

Author (Name, Year)

Bailey & Banfield & Barker & Katchan, 1995

References

American Mineralogist 80 (1995), 65

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]

Antigorite

(Mg,Fe2+)3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-010

Lizardite

Mg3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-020

Chrysotile

Mg3Si2O5(OH)4

VIII/H.27-030

Caryopilite

Mn2+3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-055

Greenalite

(Fe2+,Fe3+)2-3Si2O5(OH)4

monoklin : m : Cm

VIII/H.27-060

Berthierine

(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4

monoklin : 2/m : C2/m

VIII/H.27-070

Fraipontite

(Zn,Al)3(Si,Al)2O5(OH)4

VIII/H.27-080

Dozyite

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

monoklin : m : Cm

VIII/H.27-095

Amesite

Mg2Al(SiAl)O5(OH)4

triklin : 1 : C1

VIII/H.27-100

Kellyite

(Mn2+,Mg,Al)3(Si,Al)2O5(OH)4

hexagonal : 6 : P63

VIII/H.27-110

Cronstedtite

Fe22+Fe3+(SiFe3+)O5(OH)4

trigonal : 3m : P31m

VIII/H.27-120

Guidottiite

Mn2Fe3+(SiFe3+)O5(OH)4

hexagonal : 6 : P63

VIII/H.27-130

'Karpinskite'

(Mg,Ni)2Si2O5(OH)2

VIII/H.27-140

Népouite

(Ni,Mg)3Si2O5(OH)4

orthorhombisch : mm2 : Ccm21

VIII/H.27-150

Pecoraite

Ni3Si2O5(OH)4

VIII/H.27-160

Brindleyite

(Ni,Mg,Fe2+)2Al(SiAl)O5(OH)4

VIII/H.27-170

Carlosturanite

(Mg,Fe2+,Ti)21(Si,Al)12O28(OH)34·H2O

monoklin : m : Cm

VIII/H.27-190

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

Other languages

German

Dozyit

French

Dozyite

English

Dozyite

Spanish

Dozyíta

Russian

Доциит

IMA Number

IMA 1993-042

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