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Molybdite

Pictures (17 Images total)

Molybdit
Views (Image: 1385455571): 1209
Molybdit

Bildbreite: 1 mm; Fundort: Absetzerhalde, Tagebau Lichtenberg b. Ronneburg, Thüringen, Deutschland

Copyright: Stephan Wolfsried
Contribution: Hg 2013-11-26
Locality: Absetzerhalde / Ronneburg / Greiz, Landkreis / Thüringen / Deutschland
Molybdit
Views (Image: 1249279244): 1810
Molybdit

Bildbreite: 4 mm; Fundort: Terril St. Charles, Ransart, Charleroi, Provinz Hennegau, Belgien

Copyright: Joachim Esche
Contribution: slugslayer 2009-08-03
Locality: Terril St. Charles / Ransart / Charleroi / Charleroi, Bezirk / Hennegau (Hainaut; Henegouwen), Provinz / Belgien
Molybdit
Views (Image: 1453496677): 803
Molybdit (SNr: B001363)

Spitztafelige gelbe Kristalle, Bb = 1,7 mm; Fundort: Ransart, Charleroi, Provinz Hennegau, Belgien.

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2016-01-22
Locality: Ransart / Charleroi / Charleroi, Bezirk / Hennegau (Hainaut; Henegouwen), Provinz / Belgien
Molybdit xx
Views (Image: 1191522541): 1588
Molybdit xx

Bildbreite: 3 mm; Fundort: Kohlenmine Katharina, Radvanice, Böhmen, Tschechien

Collection: Stephan Wolfsried
Copyright: Stephan Wolfsried
Contribution: slugslayer 2007-10-04
Locality: Kateřina Kohle Mine / Radowenz (Radvanice) / Trutnov (Trautenau), Bezirk / Königgrätz (Kralovehradecky kraj) / Tschechien
Molybdit
Views (Image: 1321798832): 1407
Molybdit

Bildbreite: 5,1 mm, Fundort: Terril St. Charles, Ransart, Charleroi, Provinz Hennegau, Belgien

Copyright: Enrico Bonacina
Contribution: Hg 2011-11-20
Locality: Terril St. Charles / Ransart / Charleroi / Charleroi, Bezirk / Hennegau (Hainaut; Henegouwen), Provinz / Belgien
Molybdit
Views (Image: 1385455611): 356
Molybdit

Bildbreite: 2 mm; Fundort: Absetzerhalde, Tagebau Lichtenberg b. Ronneburg, Thüringen, Deutschland

Copyright: Stephan Wolfsried
Contribution: Hg 2013-11-26
Locality: Absetzerhalde / Ronneburg / Greiz, Landkreis / Thüringen / Deutschland

Collectors Summary

Color farblos, grünlichgelb, hellgrünlichgelb
Streak color weiß
Hardness (Mohs) 3.5
Solubility +++ Alkalien, + Säuren
Crystal System orthorhombisch, Pbnm

Chemism

Chem­ical formula

MoO3

Chem­ical com­po­si­tion

Molybdän, Sauerstoff

Unit weight: 143.94029 u; Number of atoms in the formula: 4

Info

Empirical formula:

MoO3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

33.35

3

75.00

15.9994300

47.9982900

Molybdenum

Mo

66.65

1

25.00

95.9420000

95.9420000

Anal­y­sis wt%

MoO3 : 99.30 (Ref: Act.Uni.Carol.63)

Strunz 9th edi­tion incl. updates

4.EA.10

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
E: Metall: Sauerstoff = < 1 :2
A:
10:Molybdit-Gruppe

Lapis Clas­sifica­tion

IV/E.03-010

IV: OXIDE
E: Oxide mit Verhältnis Metall : Sauerstoff < 1:2 (M2O5, MO3 u.a.)

Clas­sifica­tion by Hölzel

4.EB.100

4: OXIDES
E: R2O5 RO3 and others
B: Mooxides

Dana 8th edi­tion

04.05.01.01

04: Oxide Minerals
05: Simple Oxides with a cation charge of 6+ (A++++++ O3)

IMA sta­tus

Neudefinition von der CNMNC anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

farblos, grünlichgelb, hellgrünlichgelb

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent

RI value β

2.0>

RI value γ / ε

2.0>

Ri mean

2.12 Gl

2V angle

Biaxial (+) v.lg

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pbnm

Cell param­e­ters a (Å)

3.954

Cell param­e­ters b (Å)

13.808

Cell param­e­ters c (Å)

3.690

Cell param­e­ters a/b or c/a

0.286

Cell param­e­ters c/b

0.267

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

201.462

X-Ray Pow­der Diffrac­tion

6.921(40),
3.808(80),
3.464(40),
3.440(30),
3.259(100),
2.703(10),
2.653(30),
2.309(20)

XRD chart Molybdite

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)

3.5

VHN (Hard­ness Vick­ers)

130 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.72

4.745 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ Alkalien, + Säuren

Preface

Author (Name, Year)

Cech & Povondra, 1963

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 377

Other languages

Spanish

Molibdita

German

Molybdit

French

Molybdite

English

Molybdite

Russian

Молибдит

Simplified Chinese

钼华

Alternative Name

French

Acide molybdique

Acidemolybdique

Molybdita

CNMNC symbol

Symbol

Myb

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Молибдит

Mineral Dealer

German pages

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

Locations with GPS information