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Borocookeite

Additional Functions

Collectors Summary

Color hellrosa, gelblichgrau
Streak color weiß
Hardness (Mohs) 3
Cleavages vollkommen {001}
Fracture keiner
Crystal System monoklin, C2/m

Chemism

Chem­ical formula

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

Chem­ical com­po­si­tion

Aluminium, Lithium, Silicium, Bor, Fluor, Sauerstoff, Wasserstoff

Unit weight: 510.69952321 u; Number of atoms in the formula: 33.1

Info

Empirical formula:

Li1.3Al3.8[((OH)0.75F0.25)8(B0.75Al0.25)Si3O10]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.18

6

18.13

1.0079470

6.0476820

Lithium

Li

1.77

1.3

3.93

6.9412000

9.0235600

Boron

B

1.59

0.75

2.27

10.8117000

8.1087750

Oxygen

O

50.13

16

48.34

15.9994300

255.9908800

Fluorine

F

7.44

2

6.04

18.9984033

37.9968065

Aluminium

Al

21.40

4.05

12.24

26.9815382

109.2752297

Silicon

Si

16.50

3

9.06

28.0855300

84.2565900

Anal­y­sis wt%

SiO2 : 34.19, B2O3 : 4.06, Al2O3 : 41.77, Li2O : 4.65, F : 1.22, H2O : 14.28 (Ref: American Mineralogist 2003)

Strunz 9th edi­tion incl. updates

9.EC.55

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

Lapis Clas­sifica­tion

VIII/H.23-095

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

Clas­sifica­tion by Hölzel

9.EJ.160

9: SILICATES
E: Phyllosilicates
J: SudoiteChlorite-Group

Dana 8th edi­tion

71.04.01.10

71: Phyllosilicate Minerals
04: Phyllosilicates Phyllosilicate Sheets of Six-Membered Rings interlayered 1:1, 2:1, and octahedra
01: Chlorite group (Tri-Dioctahedral)

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Chlorite group

Optical Properties

Color

hellrosa, gelblichgrau

Streak color

weiß

max. Birefrin­gence

0.017

Birefringence chart\! Borocookeite title=Birefringence chart Borocookeite

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

1.574

RI value β

1.580

RI value γ / ε

1.591

Ri mean

1.582

2V angle

Biaxial (+) 72°

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

5.110

Cell param­e­ters b (Å)

8.856

Cell param­e­ters c (Å)

14.080

Cell param­e­ters a/b or c/a

0.577

Cell param­e­ters c/b

1.590

Cell param­e­ters α

90°

Cell param­e­ters β

96.93

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

632.524

X-Ray Pow­der Diffrac­tion

14.1(10),
7.05(50),
4.71(70),
3.512(100),
2.807(20),
2.332(10),
2.304(20),
1.946(20)

XRD chart Borocookeite

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

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

3

VHN (Hard­ness Vick­ers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.62 (gemessen)

2.681 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen {001}

Frac­ture

keiner

Tenac­ity

keine

Preface

Author (Name, Year)

Zakorsky & Peretyazhko & Sapozhnikov & Zhukhlistov & Zvyagin, 2003

References

American Mineralogist 88 (2003), 830

IMA group assignments

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

Nimite

(Ni,Mg,Fe2+)5Al(Si3Al)O10(OH)8

monoklin : 2/m : C2/m

9.EC.55

Odinite

(Fe3+,Mg,Al,Fe2+,Ti,Mn)2.4(Si1.8Al0.2)O5(OH)4

9.EC.55

Sudoite

Mg2Al3(Si3Al)O10(OH)8

monoklin : 2/m : C2/m

9.EC.55

'Chlorite group'

(Fe,Mg,Al)6(Si,Al)4O10(OH)8

9.EC.55

Cookeite

LiAl4(Si3Al)O10(OH)8

triklin : 1 : C1

9.EC.55

Chamosite

(Fe2+,Mg,Fe3+)5Al(Si3Al)O10(OH,O)8

monoklin : 2/m : C2/m

9.EC.55

'Delessite' (Var.v. Chamosite)

(Mg,Fe,Fe,Al)(Si,Al)4O10(O,OH)8

9.EC.55

Gonyerite

Mn2+5Fe3+(Si3Fe3+O10)(OH)8

9.EC.55

Donbassite

Al2.3[(OH)8|AlSi3O10]

monoklin : 2 : C2

9.EC.55

'Odinite-1T' (Pol.v. Odinite)

(Fe,Mg,Al)2.5(Si,Al)2O5(OH)4

9.EC.55

Pennantite

Mn2+5Al(Si3Al)O10(OH)8

monoklin : 2/m : C2/m

9.EC.55

Glagolevite

NaMg6[(OH,O)8|AlSi3O10]·H2O

triklin : 1 : C1

9.EC.55

Clinochlore

(Mg,Fe2+)5Al(Si3Al)O10(OH)8

monoklin : 2/m : C2/m

9.EC.55

Baileychlore

(Zn,Fe2+,Al,Mg)6(Si,Al)4O10(OH)8

triklin : 1, 1 : C1, C1

9.EC.55

Borocookeite

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

monoklin : 2/m : C2/m

9.EC.55

'Chromian Clinochlore' (Var.v. Clinochlore)

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

9.EC.55

'Orthochamosite' (Pol.v. Chamosite)

(Fe2+,Mg,Fe3+)5Al(Si3Al)O10(OH,O)8

9.EC.55

Franklinfurnaceite

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

monoklin : 2 : C2

9.EC.55

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

Donbassite

Al2.3[(OH)8|AlSi3O10]

monoklin : 2 : C2

VIII/H.23-005

Sudoite

Mg2Al3(Si3Al)O10(OH)8

monoklin : 2/m : C2/m

VIII/H.23-010

Clinochlore

(Mg,Fe2+)5Al(Si3Al)O10(OH)8

monoklin : 2/m : C2/m

VIII/H.23-020

Chamosite

(Fe2+,Mg,Fe3+)5Al(Si3Al)O10(OH,O)8

monoklin : 2/m : C2/m

VIII/H.23-030

'Orthochamosite' (Pol.v. Chamosite)

(Fe2+,Mg,Fe3+)5Al(Si3Al)O10(OH,O)8

VIII/H.23-040

Baileychlore

(Zn,Fe2+,Al,Mg)6(Si,Al)4O10(OH)8

triklin : 1, 1 : C1, C1

VIII/H.23-050

Pennantite

Mn2+5Al(Si3Al)O10(OH)8

monoklin : 2/m : C2/m

VIII/H.23-060

Nimite

(Ni,Mg,Fe2+)5Al(Si3Al)O10(OH)8

monoklin : 2/m : C2/m

VIII/H.23-070

Gonyerite

Mn2+5Fe3+(Si3Fe3+O10)(OH)8

VIII/H.23-080

Cookeite

LiAl4(Si3Al)O10(OH)8

triklin : 1 : C1

VIII/H.23-090

Borocookeite

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

monoklin : 2/m : C2/m

VIII/H.23-095

Manandonite

Li2Al4[(Si2AlB)O10](OH)8

triklin : 1 : C1

VIII/H.23-100

Jadarite

LiNaB3SiO7(OH)

VIII/H.23-105

Franklinfurnaceite

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

monoklin : 2 : C2

VIII/H.23-110

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

Sudoite

Mg2Al3(Si3Al)O10(OH)8

monoklin : 2/m : C2/m

9.EJ.100

Cookeite

LiAl4(Si3Al)O10(OH)8

triklin : 1 : C1

9.EJ.150

Borocookeite

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

monoklin : 2/m : C2/m

9.EJ.160

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

Borocookeit

French

Borocookeite

English

Borocookeite

Spanish

Borocookeíta

Russian

Борокукеит

IMA Number

IMA 2000-013

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

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