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Redledgeite

Pictures (3 Images total)

Redledgeit
Views (File:
1353347764
): 1020
Redledgeit
Nadelige gelbgrüne Kristalle, BB = 1,5 mm, Fundort: Red Ledge Mine, Washington District, Nevada Co., Kalifornien, USA.
Copyright: Heribert Rotter; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A013172, Donator: Melanie Albert
Location: USA/Kalifornien (California)/Nevada County/Washington District/Red Ledge Mine
Mineral: Redledgeite
Image: 1353347764
License: Usage for Mineralienatlas project only
Redledgeit (SNr: A013172)

Nadelige gelbgrüne Kristalle, BB = 1,5 mm, Fundort: Red Ledge Mine, Washington District, Nevada Co., Kalifornien, USA.
Collection: Lithothek der Münchener Micromounter
Copyright: Heribert Rotter
Contribution: Münchener Micromounter 2012-11-19
Locality: Red Ledge Mine / Washington District / Nevada County / Kalifornien (California) / USA
Redledgeit
Views (File:
1613631404
): 484
Redledgeit
Bildbreite: 2 mm; Fundort: Saranovskii Mine, Permskaya Oblast', Ural, Russland
Copyright: Stephan Wolfsried; Contribution: Philip Blümner
Location: Russland/Wolga, Föderationskreis/Perm, Region (Пе́рмский край)/Gornozavodskiy-Gebiet (Горнозаво́дский райо́н)/Saranovskii Mine (Rudnaya, Sarany; Saranovskoe)
Mineral: Redledgeite
Image: 1613631404
License: Usage for Mineralienatlas project only
Redledgeit

Bildbreite: 2 mm; Fundort: Saranovskii Mine, Permskaya Oblast', Ural, Russland
Copyright: Stephan Wolfsried
Contribution: Philip Blümner 2021-02-18
Locality: Saranovskii Mine (Rudnaya, Sarany; Saranovskoe) / Gornozavodskiy-Gebiet (Горнозаво́дский райо́н) / Perm, Region (Пе́рмский край) / Wolga, Föderationskreis / Russland
Redledgeit
Views (File:
1613631438
): 503
Redledgeit
Bildbreite: 5 mm; Fundort: Saranovskii Mine, Permskaya Oblast', Ural, Russland
Copyright: Stephan Wolfsried; Contribution: Philip Blümner
Location: Russland/Wolga, Föderationskreis/Perm, Region (Пе́рмский край)/Gornozavodskiy-Gebiet (Горнозаво́дский райо́н)/Saranovskii Mine (Rudnaya, Sarany; Saranovskoe)
Mineral: Redledgeite
Image: 1613631438
License: Usage for Mineralienatlas project only
Redledgeit

Bildbreite: 5 mm; Fundort: Saranovskii Mine, Permskaya Oblast', Ural, Russland
Copyright: Stephan Wolfsried
Contribution: Philip Blümner 2021-02-18
Locality: Saranovskii Mine (Rudnaya, Sarany; Saranovskoe) / Gornozavodskiy-Gebiet (Горнозаво́дский райо́н) / Perm, Region (Пе́рмский край) / Wolga, Föderationskreis / Russland

You find additional specimen at the Geolitho Museum

Collectors Summary

Color schwarz, blassgrün, gelbrün
Streak color grauweiß
Lustre Diamantglanz
Hardness (Mohs) 6.5
Crystal System tetragonal, I4/m

Chemism

Chemical formula

Ba(Ti4+6Cr3+2)O16

Chemical composition

Barium, Chrom, Titan, Sauerstoff

Unit weight: 784.5135 u; Number of atoms in the formula: 25

Info

Empirical formula:

Ba(Ti6Cr2)O16

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

32.63

16

64.00

15.9994300

255.9908800
Titanium

Ti

36.61

6

24.00

47.8671000

287.2026000
Chromium

Cr

13.26

2

8.00

51.9961600

103.9923200
Barium

Ba

17.50

1

4.00

137.3277000

137.3277000

Analysis wt%

BaO : 20.92, TiO2 : 60.42, Cr2O3 : 8.27, V2O3 : 0.70, Fe2O3 : 7.90 (Ref: Canadian Mineralogist 97)

Strunz 9th edition incl. updates

4.DK.05b

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
K: Mit großen (± mittelgroßen) [Kationen]; Tunnelstrukturen
05b:Priderit-Gruppe

Lapis Classification

IV/D.08-050

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)
8: Kryptomelan-Gruppe

Classification by Hölzel

4.CE.650

4: OXIDES
C: R2O3 Sesquioxides
E: Other complex Oxides, mostly hextrig
6: Freudenbergite-Group

Dana 8th edition

07.09.05.02

07: Multiple Oxides
09: Multiple Oxides

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Variety / polytype of

Priderite group

IMA Classification

IMA Classification

 Hollandite supergroup  ⇒ Priderite group

Optical Properties

Color

schwarz, blassgrün, gelbrün

Streak color

grauweiß

Change in color

ohne Eisenanteil, in reflektiertem Licht lebhafte grüne interne Reflektionen

Diaphaneity (Transparency)

opak, transparent an dünnen Ecken oder als fasrige Kristalle.

Lustre

Diamantglanz

2V angle

Uniaxial oder Biaxial

Crystallography

Crystal System

tetragonal

Class (H-M)

4/m

Space Group number

87

Space Group

I4/m

Cell parameters a (Å)

10.150

Cell parameters b (Å)

-

Cell parameters c (Å)

2.952

Cell parameters a/b or c/a

0.291

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90.05°

Cell parameters γ

90°

Z

1

Volume (ų)

304.122

X-Ray Powder Diffraction

3.570(50),
3.195(100),
2.470(60),
2.217(40),
1.885(50),
1.685(40),
1.583(60),
1.393(50)
XRD chart Redledgeite

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)

6.5

VHN (Hardness Vickers)

960 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.34 (berechnet) 3.72 (gemessen)

4.283 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

USA/Kalifornien (California)/Nevada County/Washington District/Red Ledge Mine

Type material

National Museum of Natural History, Washington, D.C., USA.

Natural History Museum, London, England.

Collection number of type material

95846 (USA), 1928,336 (England)

Preface

Name from

der Typlokalität Red Ledge Mine

Author (Name, Year)

Strunz, 1961

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 470

Neues Jahrbuch für Mineralogie Monatshefte (1961), 107

Canadian Mineralogist 35 (1997), 1531

European Journal of Mineralogy Volume 25 Number 1 (2013), p. 85 - 90

IMA group assignments

Other languages

German

Redledgeit

English

Redledgeite

French

Redledgeite

Spanish

Redledgeíta

Russian

Редледжеит

Japanese

ﾚｯﾄﾞﾚｼﾞｬｰｱｲﾄ

Alternative Name

German

Chromrutil

Chromrutile

CNMNC symbol

Symbol

Red

Locations with GPS information

IDs

GUSID (Global unique identifier short form) aJUMeIrmnUm4TygKPlFR6Q
GUID (Global unique identifier) 780C9568-E68A-499D-B84F-280A3E5151E9
Database ID 3234