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Corvusite (Corvusit)

Pictures (1 Images total)

Corvusit
Views (File:
1156750858
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Corvusit
Größe: 19x13 mm; Fundort: Uravan District, Mesa Co., Colorado, USA
Copyright: slugslayer; Contribution: slugslayer
Location: USA/Colorado/Mesa Co./Uravan District
Mineral: Corvusite
Image: 1156750858
Rating: 7.5 (votes: 2)
License: Usage for Mineralienatlas project only
Corvusit  D

Größe: 19x13 mm; Fundort: Uravan District, Mesa Co., Colorado, USA
Copyright: slugslayer
Contribution: slugslayer 2006-08-28
Locality: Uravan District / Mesa Co. / Colorado / USA

Collectors Summary

Color bläulichschwarz
Streak color bräunlichschwarz
Hardness (Mohs) 2.50 - 3.00
Solubility +++ Säuren, + H2O
Crystal System monoklin, C2/m

Chemism

Chemical formula

(Na,Ca)(V5+,V4+,Fe2+)8O20·4H2O

Chemical composition

Calcium, Eisen, Natrium, Sauerstoff, Vanadium, Wasserstoff

Unit weight: 830.76685565 u; Number of atoms in the formula: 41

Info

Empirical formula:

(Na0.75Ca0.25)(V0.6V0.3Fe0.1)8O20·4H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.97

8

19.51

1.0079470

8.0635760
Oxygen

O

46.22

24

58.54

15.9994300

383.9863200
Sodium

Na

2.08

0.75

1.83

22.9897702

17.2423277
Calcium

Ca

1.21

0.25

0.61

40.0784000

10.0196000
Vanadium

V

44.15

7.2

17.56

50.9415100

366.7788720
Iron

Fe

5.38

0.8

1.95

55.8452000

44.6761600

Analysis wt%

Na2O : 1.44, K2O : 1.06, CaO : 1.98, Fe2O3 : 5.82, V2O4 : 9.67, V2O5 : 64.89, UO3 : 1.71, H2O : 11.68 (Ref: American Mineralogist 33)

Strunz 9th edition incl. updates

4.HE.20

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
H: V[5,6] Vanadate
E: Schichtvanadate (Phyllovanadate)
20:Straczekit-Gruppe

Lapis Classification

IV/G.11-040

IV: OXIDE
G: Vanadiumoxide (Polyvanadate mit V4+/5+)
11: Schichtvanadate, als typische Vanadiumbronzen

Classification by Hölzel

4.GA.820

4: OXIDES
G: Vanadin, Uranyl Oxides and Hydroxides
A: Vanadin Oxides and Hydroxides, VBronzes
8: Fibrous Bronzes Straczekite-Group

Dana 8th edition

47.03.02.02

47: Vanadium Oxysalts
03: Vanadium Oxysalts (Hydrated)
02: Straczekite Group

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

bläulichschwarz

Streak color

bräunlichschwarz

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

11.706

Cell parameters b (Å)

3.644

Cell parameters c (Å)

11.10

Cell parameters a/b or c/a

3.212

Cell parameters c/b

3.046

Cell parameters α

90°

Cell parameters β

103.47

Cell parameters γ

90°

Z

1

Volumne (ų)

460.464

X-Ray Powder Diffraction

10.82(100),
3.590(10),
3.464(20),
3.256(10),
2.900(10),
2.595(10),
1.934(10),
1.819(10)
XRD chart Corvusite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.50 - 3.00

VHN (Hardness Vickers)

68 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.11 (berechnet)

2.996 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren, + H2O

(Co-)Type locality

(Co-)Type locality

USA/Utah/Grand Co./La Sal Mountains/Jack Claim

Preface

Author (Name, Year)

Schaller, 1925

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 140

Other languages

German

Corvusit

Spanish

Corvusita

English

Corvusite

French

Corvusite

Russian

Корвусит

Simplified Chinese

水复钒矿

Traditional Chinese

水復釩礦

Japanese

ｺﾙﾌﾞｻｲﾄ

Alternative Name

Blue-black Ore

CNMNC symbol

Symbol

Cvu

Locations with GPS information