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Roscoelite

Pictures (5 Images total)

Roscoelith
Views (Image: 1271608606): 1886
Roscoelith

Bildbreite: 2 mm, Fundort: Miniera Valgraveglia (Miniera Gambatesa), Reppia, Val Graveglia, Ne, Genova, Ligurien (Liguria), Italien.

Copyright: Luigi Chiappino
Contribution: thdun5 2010-04-18
Locality: Miniera Valgraveglia (Gambatesa) / Reppia / Val Graveglia / Ne / Genua (Genova), Metropolitanstadt / Ligurien (Liguria), Region / Italien
Roscoelit mit warzigem Davidit
Views (Image: 1568712824): 378
Roscoelit mit warzigem Davidit

Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet/4  km NW der Radium Hill mine. Bildbreite 9 mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2019-09-17
Locality: 4  km NW der Radium Hill mine / Radium Hill Gebiet / Mingary / Olary Province / South Australia / Australien
Roscoelit
Views (Image: 1568713037): 358
Roscoelit

Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet/4  km NW der Radium Hill mine. Bildbreite 4 mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2019-09-17
Locality: 4  km NW der Radium Hill mine / Radium Hill Gebiet / Mingary / Olary Province / South Australia / Australien
Roscoelith von der Stuckslager Mine, Kalifornien (TL)
Views (Image: 1609864070): 130
Roscoelith von der Stuckslager Mine, Kalifornien (TL) (SNr: J5K7)

Kleine, dunkelbraune bis olivgrüne Schuppen. Belegstück; BB ca. 2 mm.

Collection: prospector56
Copyright: prospector56
Contribution: prospector56 2021-01-05
Locality: Stuckslager Mine / Coloma / El Dorado Co. / Kalifornien (California) / USA
Roscoelith auf Baryt-Tafeln
Views (Image: 1244999182): 2120
Roscoelith auf Baryt-Tafeln

Bildbreite: 10 mm; Fundort: Balasauskandyk, Kara-Tau, Almaty Oblast, Kasachstan

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-14
Locality: Balasauskandyk / Kara-Tau / Almaty oblysy / Kasachstan

Collectors Summary

Color braun grün, grünlich braun, gelbgrün, dunkelbraun, dunkelgrün
Streak color grünlichweiß
Hardness (Mohs) 2.5
Solubility ++ HF, + heiße konz. Säuren
Crystal System monoklin, C2/m

Chemism

Chem­ical formula

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

Chem­ical com­po­si­tion

Aluminium, Magnesium, Silicium, Kalium, Sauerstoff, Vanadium, Wasserstoff

Unit weight: 426.52523912 u; Number of atoms in the formula: 21

Info

Empirical formula:

K(V0.6Al0.3Mg0.1)2AlSi3O10(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.47

2

9.52

1.0079470

2.0158940

Oxygen

O

45.01

12

57.14

15.9994300

191.9931600

Magnesium

Mg

1.14

0.2

0.95

24.3050600

4.8610120

Aluminium

Al

10.12

1.6

7.62

26.9815382

43.1704611

Silicon

Si

19.75

3

14.29

28.0855300

84.2565900

Potassium

K

9.17

1

4.76

39.0983100

39.0983100

Vanadium

V

14.33

1.2

5.71

50.9415100

61.1298120

Anal­y­sis wt%

SiO2 : 47.69, V2O3 : 20.56, Al2O3 : 14.10, FeO : 1.67, MgO : 2.00, K2O : 7.59, H2O : 4.96 (Ref: Hintze, Handbuch der Mineralogie, 1904-1974)

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.10-090

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.120

9: SILICATES
E: Phyllosilicates
C: Micas-Group
1: ~[(OH)2|AlSi3O10] Muscovite-Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Mica group  ⇒ True micas

Optical Properties

Color

braun grün, grünlich braun, gelbgrün, dunkelbraun, dunkelgrün

Streak color

grünlichweiß

Diaphane­ity (Trans­parency)

durchscheinend

max. Birefrin­gence

0.094

Birefringence chart\! Roscoelite title=Birefringence chart Roscoelite

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

1.610

RI value β

1.685

RI value γ / ε

1.704

Ri mean

1.666

2V angle

Biaxial (-) 32°!

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

5.282

Cell param­e­ters b (Å)

9.109

Cell param­e­ters c (Å)

10.172

Cell param­e­ters a/b or c/a

0.580

Cell param­e­ters c/b

1.117

Cell param­e­ters α

90°

Cell param­e­ters β

100.67

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

480.951

X-Ray Pow­der Diffrac­tion

10.0(80),
4.546(80),
3.660(80),
3.326(80),
3.103(70),
2.597(100),
2.415(60),
1.523(80)

XRD chart Roscoelite

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

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

2.5

VHN (Hard­ness Vick­ers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.97

2.945 ( ρ calc. Mineralienatlas )

Insta­bil­ity

++ HF, + heiße konz. Säuren

Preface

Author (Name, Year)

Blake, 1876

References

Canadian Mineralogist 36 (1998), 905

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]

Tobelite

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

monoklin : 2/m : C2/m

9.EC.100

Roscoelite

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

monoklin : 2/m : C2/m

9.EC.120

Other languages

Spanish

Roscoelita

French

Roscoelite

English

Roscoelite

German

Roscoelith

Russian

Роскоэлит

Traditional Chinese

釩雲母

Simplified Chinese

钒云母

Japanese

ロスコー雲母

Alternative Name

German

Colomit

Spanish

Colomita

Colomite

German

Roscoelit

German

Roskoelith

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

German pages

DeWikiPedia - search for: Roscoelith
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Mineralogisch-Petrographisches-Institut Hamburg - search for: Roscoelith

English pages

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RRUFF - References and PDF downloads - search for: Roscoelite
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Russian pages

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Locations with GPS information