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Chromphyllite

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Chromphyllit
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Chromphyllit

grüne Kristalle mit Spaltflächen von Chromphyllit, Sljudjanka, Baikalsee, Irkutsk, Russland; BB < 1 mm

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-03-19
Locality: Sljudjanka (Sludyanka; Slyudyanka) / Baikalsee / Irkutsk (Irkutskaja), Oblast / Sibirien, Föderationskreis / Russland

Collectors Summary

Color smaragdgrün
Streak color weißlich grün
Hardness (Mohs) 3.5
Cleavages vollkommen {001}
Solubility - HCl, HNO3
Crystal System monoklin, C2/c

Chemism

Chem­ical formula

K(Cr,Al)2[(OH,F)2|AlSi3O10]

Chem­ical com­po­si­tion

Aluminium, Chrom, Silicium, Fluor, Kalium, Sauerstoff, Wasserstoff

Unit weight: 436.826014425 u; Number of atoms in the formula: 20.5

Info

Empirical formula:

K(Cr0.75Al0.25)2[((OH)0.75F0.25)2AlSi3O10]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.35

1.5

7.32

1.0079470

1.5119205

Oxygen

O

42.12

11.5

56.10

15.9994300

183.9934450

Fluorine

F

2.17

0.5

2.44

18.9984033

9.4992016

Aluminium

Al

9.27

1.5

7.32

26.9815382

40.4723073

Silicon

Si

19.29

3

14.63

28.0855300

84.2565900

Potassium

K

8.95

1

4.88

39.0983100

39.0983100

Chromium

Cr

17.85

1.5

7.32

51.9961600

77.9942400

Anal­y­sis wt%

Ø SiO2 : 40.24, Al2O3 : 14.11, Cr2O3 : 23.99, V2O3 : 2.08, MgO : 1.60, BaO : 4.83, K2O : 8.54, H2O : 3.32, F : 1.28 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 97)

Strunz 9th edi­tion incl. updates

9.EC.15

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

Lapis Clas­sifica­tion

VIII/H.10-080

VIII: SILIKATE
H: Schichtsilikate
10: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Glimmer-Gruppe; Seladonit/Muskovit-Reihe (Phengite)

Clas­sifica­tion by Hölzel

9.EC.242

9: SILICATES
E: Phyllosilicates
C: Micas-Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Mica group  ⇒ True micas

Optical Properties

Color

smaragdgrün

Streak color

weißlich grün

Diaphane­ity (Trans­parency)

transparent

max. Birefrin­gence

0.054

Birefringence chart\! Chromphyllite title=Birefringence chart Chromphyllite

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

1.619

RI value β

1.669

RI value γ / ε

1.673

Ri mean

1.654

2V angle

Biaxial (-) 31°

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell param­e­ters a (Å)

5.32

Cell param­e­ters b (Å)

9.07

Cell param­e­ters c (Å)

20.50

Cell param­e­ters a/b or c/a

0.587

Cell param­e­ters c/b

2.260

Cell param­e­ters α

90°

Cell param­e­ters β

95.60

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

984.453

X-Ray Pow­der Diffrac­tion

9.94(60),
4.52(80),
2.86(50),
2.60(100),
2.40(60),
2.15(60),
1.648(50),
1.519(100)

XRD chart Chromphyllite

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)

3.5

VHN (Hard­ness Vick­ers)

129 (25g)

Density (g/cm³)

2.88

2.947 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen {001}

Tenac­ity

schneidbar

Insta­bil­ity

- HCl, HNO3

Preface

Author (Name, Year)

Reznitskiy & Sklyarov & Ushchapovskaya & Nartova & Evsyunin & Kashaev

References

Zapiski Vserossiskogo Mineralogicheskogo Obshchetstva 126 (1997) (2), 110

IMA group assignments

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

'Sericite' (Var.v. Muscovite)

9.EC.15

Ganterite

(Ba,Na,K)(Al,Mg)2[(OH,F)2|(Al,Si)Si2O10]

monoklin : 2/m : C2/c

9.EC.15

Muscovite

KAl2(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/c

9.EC.15

Tobelite

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

monoklin : 2/m : C2/m

9.EC.15

'Glauconite'

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

monoklin : 2/m : C2/m

9.EC.15

Montdorite

KMn0.52+Fe1.52+Mg0.5[F2|Si4O10]

monoklin : 2/m : C2/m

9.EC.15

Nanpingite

CsAl2(Si,Al)4O10(OH,F)2

monoklin : 2/m : C2/c

9.EC.15

Paragonite

NaAl2(Si3Al)O10(OH)2

monoklin : 2/m : C2/c

9.EC.15

Celadonite

K(Mg,Fe2+)(Fe3+,Al)Si4O10(OH)2

monoklin : 2 : C2

9.EC.15

Chernykhite

BaV2(Si2Al2)O10(OH)2

monoklin : 2/m : C2/c

9.EC.15

Roscoelite

K(V,Al,Mg)2AlSi3O10(OH)2

monoklin : 2/m : C2/m

9.EC.15

Tainiolite

KLiMg2Si4O10F2

monoklin : 2/m : C/2m

9.EC.15

Voloshinite

Rb(LiAl1.50.5)(Al0.5Si3.5)O10F2

monoklin : C2/c

9.EC.15

Cossaite

(Mg0.5,◻)Al6(SO4)6(HSO4)F6·36H2O

trigonal : 3 : R3

9.EC.15

'Muscovite-1M' (Pol.v. Muscovite)

KAl2(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/m

9.EC.15

'Muscovite-2A' (Pol.v. Muscovite)

KAl2(Si3Al)O10(OH,F)2

triklin : 1 : C1

9.EC.15

'Boromuscovite'

KAl2(Si3B)O10(OH,F)2

monoklin : 2/m : C2/m

9.EC.15

Chromphyllite

K(Cr,Al)2[(OH,F)2|AlSi3O10]

monoklin : 2/m : C2/c

9.EC.15

'Muscovite-3T' (Pol.v. Muscovite)

KAl2(Si3Al)O10(OH,F)2

trigonal : 32 : P3112

9.EC.15

'Muscovite-2M2' (Pol.v. Muscovite)

KAl2(Si3Al)O10(OH,F)2

monoklin : 2/m

9.EC.15

Chromceladonite

KMgCr[(OH)2|Si4O10]

monoklin : 2 : C2

9.EC.15

Ferroceladonite

K(Fe2+,Mg)(Fe3+,Al)[(OH)2|Si4O10]

monoklin : 2/m : C2/m

9.EC.15

Aluminoceladonite

K(Mg,Fe2+)Al[(OH)2|Si4O10]

9.EC.15

Manganiceladonite

KMgMn3+Si4O10(OH)2

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

9.EC.15

'Zweiaxiger glimmer'

KAl2(Si,Al)4O10(OH)2

9.EC.15

Ferroaluminoceladonite

K(Fe2+,Mg)(Al,Fe3+)[(OH)2|Si4O10]

monoklin : 2/m : C2/m

9.EC.15

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

Aluminoceladonite

K(Mg,Fe2+)Al[(OH)2|Si4O10]

VIII/H.10-010

Ferroaluminoceladonite

K(Fe2+,Mg)(Al,Fe3+)[(OH)2|Si4O10]

monoklin : 2/m : C2/m

VIII/H.10-020

Celadonite

K(Mg,Fe2+)(Fe3+,Al)Si4O10(OH)2

monoklin : 2 : C2

VIII/H.10-030

Chromceladonite

KMgCr[(OH)2|Si4O10]

monoklin : 2 : C2

VIII/H.10-035

Ferroceladonite

K(Fe2+,Mg)(Fe3+,Al)[(OH)2|Si4O10]

monoklin : 2/m : C2/m

VIII/H.10-040

Paragonite

NaAl2(Si3Al)O10(OH)2

monoklin : 2/m : C2/c

VIII/H.10-050

'Boromuscovite'

KAl2(Si3B)O10(OH,F)2

monoklin : 2/m : C2/m

VIII/H.10-060

Muscovite

KAl2(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/c

VIII/H.10-070

Chromphyllite

K(Cr,Al)2[(OH,F)2|AlSi3O10]

monoklin : 2/m : C2/c

VIII/H.10-080

Roscoelite

K(V,Al,Mg)2AlSi3O10(OH)2

monoklin : 2/m : C2/m

VIII/H.10-090

Ganterite

(Ba,Na,K)(Al,Mg)2[(OH,F)2|(Al,Si)Si2O10]

monoklin : 2/m : C2/c

VIII/H.10-095

Tobelite

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

monoklin : 2/m : C2/m

VIII/H.10-100

Nanpingite

CsAl2(Si,Al)4O10(OH,F)2

monoklin : 2/m : C2/c

VIII/H.10-110

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

Paragonite

NaAl2(Si3Al)O10(OH)2

monoklin : 2/m : C2/c

9.EC.200

Luanshiweiite-2M1

KLiAl1.5(Si3.5Al0.5)O10(OH)2

monoklin : 2/m : C2/c

9.EC.205

Muscovite

KAl2(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/c

9.EC.240

'Fuchsite' (Var.v. Muscovite)

K(Al,Cr)3Si3O10(OH)2

9.EC.241

Chromphyllite

K(Cr,Al)2[(OH,F)2|AlSi3O10]

monoklin : 2/m : C2/c

9.EC.242

'Boromuscovite'

KAl2(Si3B)O10(OH,F)2

monoklin : 2/m : C2/m

9.EC.245

Nanpingite

CsAl2(Si,Al)4O10(OH,F)2

monoklin : 2/m : C2/c

9.EC.250

Voloshinite

Rb(LiAl1.50.5)(Al0.5Si3.5)O10F2

monoklin : C2/c

9.EC.255

Chernykhite

BaV2(Si2Al2)O10(OH)2

monoklin : 2/m : C2/c

9.EC.260

Ganterite

(Ba,Na,K)(Al,Mg)2[(OH,F)2|(Al,Si)Si2O10]

monoklin : 2/m : C2/c

9.EC.270

Other languages

German

Chromphyllit

French

Chromphyllite

English

Chromphyllite

Spanish

Cromfilita

Russian

Хромфиллит

Alternative Name

Spanish

Chromphyllita

IMA Number

IMA 1995-052

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

German pages

DeWikiPedia - search for: Chromphyllit
Google-Bilder-Suche - search for: Chromphyllit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Chromphyllit

English pages

Mindat - search for: Chromphyllite
Webmineral - search for:Chromphyllite
Handbook-of-Mineralogy - search for: Chromphyllite
RRUFF - Raman, XRD and other mineral data - search for: Chromphyllite
RRUFF - References and PDF downloads - search for: Chromphyllite
American-Mineralogist-Crystal-Structure-Database - search for: Chromphyllite
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Russian pages

Webmineral.ru - search for: Хромфиллит

Mineral Dealer

German pages

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