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Roscoelite

Pictures (6 Images total)

Roscoelith
Views (File:
1271608606
): 2335
Roscoelith
Bildbreite: 2 mm, Fundort: Miniera Valgraveglia (Miniera Gambatesa), Reppia, Val Graveglia, Ne, Genova, Ligurien (Liguria), Italien.
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Italien/Ligurien (Liguria), Region/Genua (Genova), Metropolitanstadt/Ne/Val Graveglia/Reppia/Miniera Gambatesa
Mineral: Roscoelite
Image: 1271608606
Rating: 4 (votes: 2)
License: Usage for Mineralienatlas project only
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 Gambatesa / Reppia / Val Graveglia / Ne / Genua (Genova), Metropolitanstadt / Ligurien (Liguria), Region / Italien
Roscoelit mit warzigem Davidit
Views (File:
1568712824
): 768
Roscoelit mit warzigem Davidit
Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet/4  km NW der Radium Hill mine. Bildbreite 9 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet/4  km NW der Radium Hill mine
Mineral: Roscoelite
Image: 1568712824
License: Usage for Mineralienatlas project only
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 (File:
1568713037
): 722
Roscoelit
Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet/4  km NW der Radium Hill mine. Bildbreite 4 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Australien/South Australia/Olary Province/Mingary/Radium Hill Gebiet/4  km NW der Radium Hill mine
Mineral: Roscoelite
Image: 1568713037
License: Usage for Mineralienatlas project only
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 (File:
1609864070
): 478
Roscoelith von der Stuckslager Mine, Kalifornien (TL)
Kleine, dunkelbraune bis olivgrüne Schuppen. Belegstück; BB ca. 2 mm.
Copyright: prospector56; Contribution: prospector56
Collection: prospector56, Collection number: J5K7
Location: USA/Kalifornien (California)/El Dorado Co./Coloma/Stuckslager Mine
Mineral: Roscoelite
Image: 1609864070
License: Usage for Mineralienatlas project only
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-Arsenkies-Zinkblende-Grube Roter Bär-St.Andreasberg
Views (File:
1707046795
): 43
Roscoelith-Arsenkies-Zinkblende-Grube Roter Bär-St.Andreasberg
Erzanschliff: Roscoelith ein neues Vanadiumhaltiges Mineral für St. Andreasberg(tief schwarz), in Calcit (gering heller), Zinkblende (grau, unterer Bildrand) und Arsenkies-Kristalle (weiß, rautenförmig, rechts). Bildbreite: 500 µm, Öl. St. Andreasberg/Harz, Grube Roter Bär am Fuße des Beerberges. Eigenfund M. Groß 1993.
Copyright: haldenhannes; Contribution: argentopyrit
Collection: Johannes Heider ex M. Groß
Location: Deutschland/Niedersachsen/Goslar, Landkreis/Braunlage/St. Andreasberg, Revier/Beerberg/Grube Roter Bär
Mineral: Roscoelite
Image: 1707046795
License: Usage for Mineralienatlas project only
Roscoelith-Arsenkies-Zinkblende-Grube Roter Bär-St.Andreasberg

Erzanschliff: Roscoelith ein neues Vanadiumhaltiges Mineral für St. Andreasberg(tief schwarz), in Calcit (gering heller), Zinkblende (grau, unterer Bildrand) und Arsenkies-Kristalle (weiß, rautenfö...
Collection: Johannes Heider ex M. Groß
Copyright: haldenhannes
Contribution: argentopyrit 2024-02-04
Locality: Grube Roter Bär / Beerberg / St. Andreasberg, Revier / Braunlage / Goslar, Landkreis / Niedersachsen / Deutschland

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

Volume (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

(Co-)Type locality

(Co-)Type locality

USA/Kalifornien (California)/El Dorado Co./Coloma/Stuckslager Mine

Preface

Name from

Henry Enfield Roscoe (1833–1915) und lithos (griechisches Wort für 'Stein')

Author (Name, Year)

James Blake, 1876

References

Canadian Mineralogist 36 (1998), 905

IMA group assignments

 
Mica group
 
 
 

 
 
True micas
 
 
 

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

 
 
 
Annite
KFe2+3(Si3Al)O10(OH,F)2
monoklin
C2/m

 
 
 
Aspidolite
NaMg3(AlSi3)O10(OH)2
monoklin
C2/m

 
 
 
Boromuscovite
KAl2(Si3B)O10(OH,F)2
monoklin
C2/m

 
 
 
Celadonite
K(Mg,Fe2+)(Fe3+,Al)Si4O10(OH)2
monoklin
C2

 
 
 
Chromphyllite
K(Cr,Al)2[(OH,F)2|AlSi3O10]
monoklin
C2/c

 
 
 
Eastonite
KMg2Al[(OH)2|Al2Si2O10]
monoklin
C2

 
 
 
Ephesite
NaLiAl2(Al2Si2)O10(OH)2
monoklin
Cc

 
 
 
Ferroaluminoceladonite
K(Fe2+,Mg)(Al,Fe3+)[(OH)2|Si4O10]
monoklin
C2/m

 
 
 
Ferroceladonite
K(Fe2+,Mg)(Fe3+,Al)[(OH)2|Si4O10]
monoklin
C2/m

 
 
 
Fluorannite
KFe32+[(F,OH)2|AlSi3O10]
monoklin
C2/m

 
 
 
Ganterite
(Ba,Na,K)(Al,Mg)2[(OH,F)2|(Al,Si)Si2O10]
monoklin
C2/c

 
 
 
Hendricksite
K(Zn,Mn)3Si3AlO10(OH)2
monoklin
C2/m

 
 
 
Masutomilite
K(Li,Al,Mn2+)3(Si,Al)4O10(F,OH)2
monoklin
C2

 
 
 
Montdorite
KMn0.52+Fe1.52+Mg0.5[F2|Si4O10]
monoklin
C2/m

 
 
 
Muscovite
KAl2(Si3Al)O10(OH,F)2
monoklin
C2/c

 
 
 
Nanpingite
CsAl2(Si,Al)4O10(OH,F)2
monoklin
C2/c

 
 
 
Norrishite
KLiMn3+2Si4O12
monoklin
C2/m

 
 
 
Paragonite
NaAl2(Si3Al)O10(OH)2
monoklin
C2/c

 
 
 
Phlogopite
KMg3(Si3Al)O10(F,OH)2
monoklin
C2/m

 
 
 
Polylithionite
KLi2AlSi4O10(F,OH)2
monoklin
C2/m

 
 
 
Preiswerkite
NaMg2Al3Si2O10(OH)2
monoklin
C2/m

 
 
 
Roscoelite
K(V,Al,Mg)2AlSi3O10(OH)2
monoklin
C2/m

 
 
 
Shirozulite
K(Mn2+,Mg)3[(OH)2|AlSi3O10]
 
 

 
 
 
Siderophyllite
KFe22+Al(Al2Si2)O10(F,OH)2
monoklin
C2/m

 
 
 
Sokolovaite
CsLi2AlSi4O10F2
monoklin
 

 
 
 
Tainiolite
KLiMg2Si4O10F2
monoklin
C/2m

 
 
 
Tetraferriannite
KFe2+3(Si3Fe3+)O10(OH)2
monoklin
C2/m

 
 
 
Tetraferriphlogopite
KMg3[(F,OH)2|(Al,Fe3+)Si3O10]
monoklin
C2/m

 
 
 
Tobelite
(NH4,K)Al2(Si3Al)O10(OH)2
monoklin
C2/m

 
 
 
Trilithionite
KLi1.5Al1.5[F2|AlSi3O10]
monoklin
C2/m

 
 
 
Yangzhumingite
KMg2.5Si4O10F2
monoklin
C2/m

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Actuality: 09. Sep 2024 - 05:36:22

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

CNMNC symbol

Symbol

Rcl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 05HJtiYCAkSMwaYLdnZWGA
GUID (Global unique identifier) B6C991D3-0226-4402-8CC1-A60B76765618
Database ID 3308