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Metahewettite

Pictures (8 Images total)

Metahewettit
Views (Image: 1221756379): 1359
Metahewettit

Bildbreite: 2 mm; Fundort: Absetzerhalde, Ronneburg, Thüringen, Deutschland
Copyright: Stephan Wolfsried
Contribution: Hg 2008-09-18
Locality: Absetzerhalde / Ronneburg / Greiz, Landkreis / Thüringen / Deutschland
Metahewettit
Views (Image: 1298825559): 568
Metahewettit

Größe: 2 x 0,5 x 0,5 cm, Fundort: Ambrosia Lake Area, Grants District, McKinley Co., New Mexico, USA
Copyright: Maggie Wilson
Contribution: thdun5 2011-02-27
Locality: Ambrosia Lake Area / Grants District / McKinley Co. / New Mexico / USA
Metahewettit
Views (Image: 1179684786): 1890
Metahewettit

kupferrot in Matrix, Fundort: Colorado, USA, Bildausschnitt: 11 x 6 mm
Collection: rtbstone
Copyright: rtbstone
Contribution: rtbstone 2007-05-20
Locality: Colorado / USA
Metahewettit
Views (Image: 1298825526): 806
Metahewettit

Größe: 1,2 x 1 x 0,8 cm, Fundort: Ambrosia Lake Area, Grants District, McKinley Co., New Mexico, USA
Copyright: Michael Roarke
Contribution: thdun5 2011-02-27
Locality: Ambrosia Lake Area / Grants District / McKinley Co. / New Mexico / USA
Meta-Hewettit -xx, Carnotit
Views (Image: 1357392425): 425
Meta-Hewettit -xx, Carnotit  D

Mineralien: Metahewettit -xx, Carnotit; Fundort: Uravan Mineral Belt, Colorado, USA; Bildbreite: 2,8 mm; Tauschtag Rosenheim 2012
Collection: Florian
Copyright: Florian
Contribution: Florian 2013-01-05
Locality: Jo Dandy (Hummer) Mine / Paradox Valley / Uravan District / Montrose Co. / Colorado / USA
Metahewettit
Views (Image: 1439982546): 276
Metahewettit

rotbraune, nadelige Metahewettit xx neben Gips und Sampleit; Absetzerhalde, Ronneburger Revier, Thüringen, BRD; Bildbreite: 2,5 mm
Collection: chribiedav
Copyright: chribiedav
Contribution: chribiedav 2015-08-19
Locality: Absetzerhalde / Ronneburg / Greiz, Landkreis / Thüringen / Deutschland

Collectors Summary

Color dunkelrot
Streak color bräunlichrot
Solubility +++ Säuren, + H2O
Crystal System monoklin, A2/m

Chemism

Chem­ical formula

CaV65+O16·3H2O

Chem­ical com­po­si­tion

Calcium, Sauerstoff, Vanadium, Wasserstoff

Unit weight: 655.764312 u; Number of atoms in the formula: 32

Info

Empirical formula:

CaV6O16·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.92

6

18.75

1.0079470

6.0476820
Oxygen

O

46.36

19

59.38

15.9994300

303.9891700
Calcium

Ca

6.11

1

3.13

40.0784000

40.0784000
Vanadium

V

46.61

6

18.75

50.9415100

305.6490600

Anal­y­sis wt%

CaO : 8.55, V2O5 : 83.21, H2O : 8.24 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

4.HE.15

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

Lapis Clas­sifica­tion

IV/G.12-050

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

Clas­sifica­tion by Hölzel

4.GA.700

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

Dana 8th edi­tion

47.03.01.02

47: Vanadium Oxysalts
03: Vanadium Oxysalts (Hydrated)
01: Hewettite Group

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

dunkelrot

Streak color

bräunlichrot

max. Birefrin­gence

0.53

RI value α / ω / n

1.70

RI value β

2.10 Li

RI value γ / ε

2.23

Ri mean

2.010

2V angle

Biaxial (-) 52°c

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

A2/m

Cell param­e­ters a (Å)

12.15

Cell param­e­ters b (Å)

3.607

Cell param­e­ters c (Å)

18.44

Cell param­e­ters a/b or c/a

3.368

Cell param­e­ters c/b

5.112

Cell param­e­ters α

90°

Cell param­e­ters β

118.3

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

711.544

X-Ray Pow­der Diffrac­tion

8.19(100),
5.36(10),
3.578(30),
3.062(20),
2.812(20),
2.295(20),
2.206(20),
2.033(10)
XRD chart Metahewettite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.94 (gemessen)

3.061 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ Säuren, + H2O

Preface

Author (Name, Year)

Hillebrand & Merwin & Wright, 1914

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 365

Other languages

German

Metahewettit

Spanish

Metahewettita

French

Metahewettite

English

Metahewettite

Russian

Метахьюэттит

CNMNC symbol

Symbol

Mhew

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

German pages

 DeWikiPedia - search for: Metahewettit
Google-Bilder-Suche - search for: Metahewettit
Mineralienatlas.de (Forum) - search for: Metahewettit

English pages

 Mindat - search for: Metahewettite
Webmineral - search for:Metahewettite
Handbook-of-Mineralogy - search for: Metahewettite
RRUFF - Raman, XRD and other mineral data - search for: Metahewettite
RRUFF - References and PDF downloads - search for: Metahewettite
American-Mineralogist-Crystal-Structure-Database - search for: Metahewettite
Strahlen.org - search for: Metahewettite

Russian pages

 Webmineral.ru - search for: Метахьюэттит

Mineral Dealer

German pages

 hausen - Mineralgroßhandel - search for: Metahewettit
Crystal-Treasure.com - search for: Metahewettit
Bosse - search for: Metahewettit
Edelsteine Neuburg - Gundolf Fischer - search for: Metahewettit

Locations with GPS information