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Macaulayite

Additional Functions

Collectors Summary

Color Blood rot
Streak color hellrot
Crystal System monoklin,

Chemism

Chem­ical formula

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

Chem­ical com­po­si­tion

Aluminium, Eisen, Silicium, Sauerstoff, Wasserstoff

Unit weight: 2001.4351932 u; Number of atoms in the formula: 75

Info

Empirical formula:

(Fe0.75Al0.25)24Si4O43(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.10

2

2.67

1.0079470

2.0158940

Oxygen

O

35.97

45

60.00

15.9994300

719.9743500

Aluminium

Al

8.09

6

8.00

26.9815382

161.8892292

Silicon

Si

5.61

4

5.33

28.0855300

112.3421200

Iron

Fe

50.22

18

24.00

55.8452000

1,005.2136000

Strunz 9th edi­tion incl. updates

9.EC.65

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

Lapis Clas­sifica­tion

VIII/H.09-030

VIII: SILIKATE
H: Schichtsilikate
9: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen

Clas­sifica­tion by Hölzel

9.AH.200

9: SILICATES
A: Nesosilicates
H: Nesosilicates with O + (OH, OH,X, X)
2: Unclassified

Dana 8th edi­tion

71.02.05.01

71: Phyllosilicate Minerals
02: Phyllosilicates Phyllosilicate Sheets of Six-Membered Rings with 2:1 Layers

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

Blood rot

Streak color

hellrot

RI value α / ω / n

1.734>

RI value β

1.734>

RI value γ / ε

1.734>

2V angle

Biaxial

Crystallography

Crystal Sys­tem

monoklin

Cell param­e­ters a (Å)

5.038

Cell param­e­ters b (Å)

8.726

Cell param­e­ters c (Å)

36.342

Cell param­e­ters a/b or c/a

0.577

Cell param­e­ters c/b

4.165

Cell param­e­ters α

90°

Cell param­e­ters β

92°..

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

1596.679

X-Ray Pow­der Diffrac­tion

36.6(100),
18.16(100),
4.377(10),
3.700(20),
2.720(30),
2.533(100),
2.214(20),
1.462(30)

XRD chart Macaulayite

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

Physical Properties

Density (g/cm³)

4.41

4.163 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

UK/Schottland/Aberdeenshire/Inverurie/Bennachie

Preface

Author (Name, Year)

Wilson & Russell & Tait & Clark & Frazer, 1984

References

Mineralogical Magazine 48 (1984), 127

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

Macaulayite

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

9.EC.65

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

Pyrophyllite

Al2Si4O10(OH)2

monoklin : 2/m : C2/c

VIII/H.09-010

Ferripyrophyllite

Fe3+Si2O5(OH)

monoklin : 2/m : C2/c

VIII/H.09-020

Macaulayite

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

VIII/H.09-030

Talc

Mg3Si4O10(OH)2

monoklin : 2/m : C2/c

VIII/H.09-040

Minnesotaite

Fe2+3Si4O10(OH)2

triklin : 1 : P1

VIII/H.09-050

Willemseite

(Ni,Mg)3Si4O10(OH)2

monoklin : m : Cc

VIII/H.09-060

Kegelite

Pb4Al2Si4O10(SO4)(CO3)2(OH)4

monoklin : 2/m, 2, m : A2/m, A2, Am

VIII/H.09-070

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

Macaulayite

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

9.AH.200

Yoderite

(Mg,Al,Fe3+)8Si4(O,OH)20

monoklin : 2/m : P21/m

9.AH.220

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

German

Macaulayit

Spanish

Macaulayita

French

Macaulayite

English

Macaulayite

Japanese

マカウライ石

IMA Number

IMA 1981-062

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

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