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Oxykinoshitalite

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Oxykinoshitalith
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Oxykinoshitalith

Bildbreite: 2 mm, Fundort: Fernando de Noronha, Fernando de Noronha Archipel, Pernambuco, Nordosten (Região Nordeste), Brasilien

Copyright: Luigi Chiappino
Contribution: thdun5 2013-02-11
Locality: Fernando de Noronha, Insel / Fernando de Noronha Archipel / Pernambuco / Nordosten (Região Nordeste) / Brasilien

Collectors Summary

Color hellorange bis braun
Streak color braun
Lustre Glasglanz
Hardness (Mohs) 2.5
Cleavages vollkommen (001)
Fracture splittrig
Crystal System monoklin, C2/m

Chemism

Chem­ical formula

(Ba,K)(Mg,Fe2+,Ti4+)3(Si,Al)4O10O2

Addi­tional chem. informa­tion

Glimmer Gruppe

Chem­ical com­po­si­tion

Aluminium, Barium, Eisen, Magnesium, Silicium, Titan, Kalium, Sauerstoff

Unit weight: 524.3715587 u; Number of atoms in the formula: 20

Info

Empirical formula:

(Ba0.75K0.25)(Mg0.6Fe0.3Ti0.1)3(Si0.75Al0.25)4O10O2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

36.61

12

60.00

15.9994300

191.9931600

Magnesium

Mg

8.34

1.8

9.00

24.3050600

43.7491080

Aluminium

Al

5.15

1

5.00

26.9815382

26.9815382

Silicon

Si

16.07

3

15.00

28.0855300

84.2565900

Potassium

K

1.86

0.25

1.25

39.0983100

9.7745775

Titanium

Ti

2.74

0.3

1.50

47.8671000

14.3601300

Iron

Fe

9.58

0.9

4.50

55.8452000

50.2606800

Barium

Ba

19.64

0.75

3.75

137.3277000

102.9957750

Strunz 9th edi­tion incl. updates

9.EC.35

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

Lapis Clas­sifica­tion

VIII/H.12-025

VIII: SILIKATE
H: Schichtsilikate
12: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Glimmer-Gruppe; Sprödglimmer (Margarit-Reihe)

Clas­sifica­tion by Hölzel

9.EE.160

9: SILICATES
E: Phyllosilicates
E: ~[(OH)2|Al2Si2O10] Margarite-Group

Dana 8th edi­tion

71.02.02c.08

71: Phyllosilicate Minerals
02: Phyllosilicates Phyllosilicate Sheets of Six-Membered Rings with 2:1 Layers
02c: Mica Group (Margarite subgroup)

IMA sta­tus

anerkannt 2004

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Mica group  ⇒ Brittle micas

Optical Properties

Color

hellorange bis braun

Streak color

braun

Lus­tre

Glasglanz

max. Birefrin­gence

0.011

Birefringence chart\! Oxykinoshitalite title=Birefringence chart Oxykinoshitalite

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

1.708

RI value β

1.710

RI value γ / ε

1.719

Ri mean

1.712

2V angle

Biaxial (+) 56°

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

5.352

Cell param­e­ters b (Å)

9.282

Cell param­e­ters c (Å)

10.048

Cell param­e­ters a/b or c/a

0.577

Cell param­e­ters c/b

1.083

Cell param­e­ters α

90°

Cell param­e­ters β

100.33

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

491.066

X-Ray Pow­der Diffrac­tion

3.646(7), 3.383(6), 3.130(7), 2.902(5), 2.637(10), 2.435(5), 2.172(9), 1.988(5)

XRD chart Oxykinoshitalite

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)

3.3 (berechnet 3.45)

3.546 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen (001)

Frac­ture

splittrig

Tenac­ity

spröde

Preface

Author (Name, Year)

Kogarko & Uvarova & Sokolova & Hawthorne & Ottolini & Grice, 2005

References

Canadian Mineralogist 43 (2005), 1501

IMA group assignments

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

Bityite

CaLiAl2(AlBeSi2)O10(OH)2

monoklin : 2/m : C2/c

9.EC.35

Anandite

(Ba,K)(Fe2+,Mg)3(Si,Al,Fe)4O10(S,OH)2

monoklin : 2/m : C2/c

9.EC.35

Clintonite

Ca(Mg,Al)3(Al3Si)O10(OH)2

monoklin : 2/m, m : C2/m, ?

9.EC.35

Fluorokinoshitalite

BaMg3Al2Si2O10F2

monoklin : 2/m : C2/m

9.EC.35

Kinoshitalite

(Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2

monoklin : 2/m : C2/m

9.EC.35

Oxykinoshitalite

(Ba,K)(Mg,Fe2+,Ti4+)3(Si,Al)4O10O2

monoklin : 2/m : C2/m

9.EC.35

Ferrokinoshitalite

Ba(Fe2+,Mg)3[(OH,F)2|Al2Si2O10]

monoklin : 2/m : C2/m

9.EC.35

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

Anandite

(Ba,K)(Fe2+,Mg)3(Si,Al,Fe)4O10(S,OH)2

monoklin : 2/m : C2/c

VIII/H.12-010

Bityite

CaLiAl2(AlBeSi2)O10(OH)2

monoklin : 2/m : C2/c

VIII/H.12-020

Oxykinoshitalite

(Ba,K)(Mg,Fe2+,Ti4+)3(Si,Al)4O10O2

monoklin : 2/m : C2/m

VIII/H.12-025

Fluorokinoshitalite

BaMg3Al2Si2O10F2

monoklin : 2/m : C2/m

VIII/H.12-028

Kinoshitalite

(Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2

monoklin : 2/m : C2/m

VIII/H.12-030

Ferrokinoshitalite

Ba(Fe2+,Mg)3[(OH,F)2|Al2Si2O10]

monoklin : 2/m : C2/m

VIII/H.12-035

Margarite

CaAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

VIII/H.12-040

Chernykhite

BaV2(Si2Al2)O10(OH)2

monoklin : 2/m : C2/c

VIII/H.12-050

Hanjiangite

Ba2Ca(V3+Al)(AlSi3O10)(OH)2F(CO3)2

monoklin : m : Cc

VIII/H.12-055

Clintonite

Ca(Mg,Al)3(Al3Si)O10(OH)2

monoklin : 2/m, m : C2/m, ?

VIII/H.12-060

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

Siderophyllite

KFe22+Al(Al2Si2)O10(F,OH)2

monoklin : 2 : C2/m

9.EE.100

Preiswerkite

NaMg2Al3Si2O10(OH)2

monoklin : 2/m : C2/m

9.EE.120

Kinoshitalite

(Ba,K)(Mg,Mn,Al)3Si2Al2O10(OH)2

monoklin : 2/m : C2/m

9.EE.140

Fluorokinoshitalite

BaMg3Al2Si2O10F2

monoklin : 2/m : C2/m

9.EE.143

Ferrokinoshitalite

Ba(Fe2+,Mg)3[(OH,F)2|Al2Si2O10]

monoklin : 2/m : C2/m

9.EE.150

Oxykinoshitalite

(Ba,K)(Mg,Fe2+,Ti4+)3(Si,Al)4O10O2

monoklin : 2/m : C2/m

9.EE.160

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

Talc

Mg3Si4O10(OH)2

monoklin : 2/m : C2/c

71.02.01.03

Willemseite

(Ni,Mg)3Si4O10(OH)2

monoklin : m : Cc

71.02.01.04

'Glauconite'

(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2

monoklin : 2/m : C2/m

71.02.02a.05

Tobelite

(NH4,K)Al2(Si3Al)O10(OH)2

monoklin : 2/m : C2/m

71.02.02a.07

'Tetraferriannite'

KFe2+3(Si3Fe3+)O10(OH)2

monoklin : 2/m : C2/m

71.02.02b.04

Sokolovaite

CsLi2AlSi4O10F2

71.02.02b.08b

Zinkosite

ZnSO4

orthorhombisch : mmm : Pnma

71.02.02b.10

'Zinnwaldite'

KLiFe2+Al(AlSi3)O10(F,OH)2

monoklin : 2 : C2

71.02.02b.10

'Ephesite'

NaLiAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

71.02.02b.16

Clintonite

Ca(Mg,Al)3(Al3Si)O10(OH)2

monoklin : 2/m, m : C2/m, ?

71.02.02c.02

Anandite

(Ba,K)(Fe2+,Mg)3(Si,Al,Fe)4O10(S,OH)2

monoklin : 2/m : C2/c

71.02.02c.04

Oxykinoshitalite

(Ba,K)(Mg,Fe2+,Ti4+)3(Si,Al)4O10O2

monoklin : 2/m : C2/m

71.02.02c.08

Hydrobiotite

K(Mg,Fe2+)6(Si,Al)8O20(OH)4·nH2O

monoklin : 2/m : C2/m

71.02.02d.01

Cuprorivaite

CaCuSi4O10

tetragonal : 4/mmm : P4/ncc

71.02.03.01

Gillespite

BaFe2+Si4O10

tetragonal : 4/mmm : P4/ncc

71.02.03.02

Effenbergerite

BaCu[Si4O10]

tetragonal : 4/mmm : P4/ncc

71.02.03.03

Wesselsite

Sr0.9Ba0.1CuSi4O10

tetragonal : 4/mmm : P4/ncc

71.02.03.04

Ferrisurite

(Pb,Ca)2-3(Fe3+,Al)2[(OH,F)2.5-3|(CO3)1.5-2|Si4O10]·0.5 H2O

monoklin : 2, 2/m : P21, P21/m

71.02.04.01

Surite

Pb2Ca(Al,Mg)2(Si,Al)4O10(OH)2(CO3,OH)3·0.5 H2O

monoklin : 2 : P21

71.02.04.02

Niksergievite

(Ba, Ca)2Al3[(OH)6|CO3|(Si, Al)4O10]·0.2 H2O

monoklin : 2/m, 2, m : C2/m, C2, Cm

71.02.04.03

Macaulayite

(Fe3+,Al)24Si4O43(OH)2

71.02.05.01

Other languages

Spanish

Oxykinoshitalita

French

Oxykinoshitalite

English

Oxykinoshitalite

German

Oxykinoshitalith

Traditional Chinese

含氧鋇鎂脆雲母

Simplified Chinese

含氧钡镁脆云母

IMA Number

IMA 2004-013

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

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English pages

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