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Lasalite (Lasalit)

Pictures (6 Images total)

Lasalit; BB 6,4 mm
Views (File:
1241361763
): 1231, Rating: 7
Lasalit; BB 6,4 mm
Vanadium Queen Mine, Paradox Valley, Sa, Juan Co., Utah, Typlokalität
Copyright: Hannes Osterhammer; Contribution: eschuhbauer
Collection: Lithothek der Münchener Micromounter, Collection number: B004055, Donator: eschuhbauer
Location: USA/Utah/San Juan Co./La Sal/La Sal Creek/Vanadium Queen Mine
Mineral: Lasalite
Image: 1241361763
Rating: 7 (votes: 5)
License: Usage for Mineralienatlas project only
Lasalit; BB 6,4 mm (SNr: B004055)

Vanadium Queen Mine, Paradox Valley, Sa, Juan Co., Utah, Typlokalität
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: eschuhbauer 2009-05-03
Locality: Vanadium Queen Mine / La Sal Creek / La Sal / San Juan Co. / Utah / USA
Lasalit
Views (File:
1353354539
): 758
Lasalit
Blockige orange Kristalle, BB = 11 mm, Fundort: Vanadium Queen Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Copyright: Heribert Rotter; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A013724, Donator: eschuhbauer
Location: USA/Utah/San Juan Co./La Sal/La Sal Creek/Vanadium Queen Mine
Mineral: Lasalite
Image: 1353354539
Rating: 7 (votes: 2)
License: Usage for Mineralienatlas project only
Lasalit (SNr: A013724)

Blockige orange Kristalle, BB = 11 mm, Fundort: Vanadium Queen Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Collection: Lithothek der Münchener Micromounter
Copyright: Heribert Rotter
Contribution: Münchener Micromounter 2012-11-19
Locality: Vanadium Queen Mine / La Sal Creek / La Sal / San Juan Co. / Utah / USA
Lasalit
Views (File:
1217872795
): 968
Lasalit
Bildbreite: 9 mm; Fundort: Vanadium Queen Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Copyright: Leonardus; Contribution: slugslayer
Location: USA/Utah/San Juan Co./La Sal/La Sal Creek/Vanadium Queen Mine
Mineral: Lasalite
Image: 1217872795
Rating: 6 (votes: 2)
License: Usage for Mineralienatlas project only
Lasalit

Bildbreite: 9 mm; Fundort: Vanadium Queen Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Copyright: Leonardus
Contribution: slugslayer 2008-08-04
Locality: Vanadium Queen Mine / La Sal Creek / La Sal / San Juan Co. / Utah / USA
Lasalit xx, als orangefarbenes kugeliges Aggregat
Views (File:
1195479359
): 1085
Lasalit xx, als orangefarbenes kugeliges Aggregat
Fundort: Blue Cap Mine, Paradox Mining District, San Juan Co., Utah, USA; Bildbreite: 3 mm
Copyright: anatasi; Contribution: anatasi
Collection: anatasi
Location: USA/Utah/San Juan Co./La Sal/La Sal Creek/Blue Cap Mine
Mineral: Lasalite
Image: 1195479359
License: Usage for Mineralienatlas project only
Lasalit xx, als orangefarbenes kugeliges Aggregat

Fundort: Blue Cap Mine, Paradox Mining District, San Juan Co., Utah, USA; Bildbreite: 3 mm
Collection: anatasi
Copyright: anatasi
Contribution: anatasi 2007-11-19
Locality: Blue Cap Mine / La Sal Creek / La Sal / San Juan Co. / Utah / USA
Lasalit (gelb) und Hewettit
Views (File:
1281241336
): 946
Lasalit (gelb) und Hewettit
Bildbreite: 3,9 mm; Fundort: Vanadium Queen Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Copyright: Joachim Esche; Contribution: slugslayer
Location: USA/Utah/San Juan Co./La Sal/La Sal Creek/Vanadium Queen Mine
Mineral: Hewettite, Lasalite
Image: 1281241336
License: Usage for Mineralienatlas project only
Lasalit (gelb) und Hewettit

Bildbreite: 3,9 mm; Fundort: Vanadium Queen Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Copyright: Joachim Esche
Contribution: slugslayer 2010-08-08
Locality: Vanadium Queen Mine / La Sal Creek / La Sal / San Juan Co. / Utah / USA
Lasalit
Views (File:
1538123925
): 162
Lasalit
feinkristallin-tafeliger orangefarbener Lasalit von der Blue Cap Mine in Colorado
Copyright: husi; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A028426, Donator: eschuhbauer
Location: USA/Utah/San Juan Co./La Sal/La Sal Creek/Blue Cap Mine
Mineral: Lasalite
Image: 1538123925
License: Usage for Mineralienatlas project only
Lasalit (SNr: A028426)

feinkristallin-tafeliger orangefarbener Lasalit von der Blue Cap Mine in Colorado
Collection: Lithothek der Münchener Micromounter
Copyright: husi
Contribution: Münchener Micromounter 2018-09-28
Locality: Blue Cap Mine / La Sal Creek / La Sal / San Juan Co. / Utah / USA

You find additional Lasalit specimen at the Geolitho Museum

Collectors Summary

Color orange
Streak color gelb
Lustre Diamantglanz
Hardness (Mohs) 1
Cleavages keine
Solubility bei längerer Lagerung an trockener Luft dehydriert es zu einemgelben Pulver
Crystal System monoklin,
Morphology Das Mineral kristallisiert in blockig-isometrischen, parallel [010] gestreckten Kristallen und bildet ferner massive Krusten aus verrundeten, 1-2 mm großen Kristallen. Idiomorphe Kristalle zeigen die Flächenformen {100}, {010}, {001}, {111} und {111}.

Chemism

Chemical formula

Na2Mg2[V5+10O28]·20H2O

Additional chem. information

Pascoit-Sherwoodit-Gruppe

Chemical composition

Magnesium, Natrium, Sauerstoff, Vanadium, Wasserstoff

Unit weight: 1412.2952804 u; Number of atoms in the formula: 102

Info

Empirical formula:

Na2Mg2[V10O28]·20H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

2.85

40

39.22

1.0079470

40.3178800
Oxygen

O

54.38

48

47.06

15.9994300

767.9726400
Sodium

Na

3.26

2

1.96

22.9897702

45.9795404
Magnesium

Mg

3.44

2

1.96

24.3050600

48.6101200
Vanadium

V

36.07

10

9.80

50.9415100

509.4151000

Analysis wt%

SO3 : 2.55, V2O5 : 61.85, MgO : 5.42, CaO : 1.75, Na2O : 4.06, K2O : 0.47, H2O : 23.88 (Ref: Canadian Mineralogist 2008)

Strunz 9th edition incl. updates

4.HC.

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
H: V[5,6] Vanadate
C: [6]-Gruppenvanadate (Sorovanadate)

Lapis Classification

IV/G.01-005

IV: OXIDE
G: Vanadiumoxide (Polyvanadate mit V4+/5+)
1: Gruppenvanadate

Classification by Hölzel

4.GA.605

4: OXIDES
G: Vanadin, Uranyl Oxides and Hydroxides
A: Vanadin Oxides and Hydroxides, VBronzes
6: Valency for V: 5 Hummerite-Group

IMA status

anerkannt 04/2007

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Pascoite supergroup  ⇒ Hummerite group  ⇒ Lasalite subgroup
Decavanadate family

Optical Properties

Color

orange

Streak color

gelb

Diaphaneity (Transparency)

transparent

Lustre

Diamantglanz

max. Birefringence

0.037
Birefringence chart\! Lasalite title=Birefringence chart Lasalite

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

1.743

RI value β

1.773

RI value γ / ε

1.780

Ri mean

1.765

2V angle

Biaxial (-) 43° on 589nm

Pleochroism

Im Durchlicht deutlicher Pleochroismus von X = hellgrünlichgelb über Y = hellgelb nach Z = hellbraun sowie starke Dispersion.

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

monoklin

Cell parameters a (Å)

23.902

Cell parameters b (Å)

10.999

Cell parameters c (Å)

17.050

Cell parameters a/b or c/a

2.173

Cell parameters c/b

1.550

Cell parameters α

90°

Cell parameters β

118.28°

Cell parameters γ

90°

Z

4

Volumne (ų)

3947.404

X-Ray Powder Diffraction

9.72(100), 9.09(60), 8.19(60), 7.42(70), 6.67(80), 2.882(50), 2.706(50), 1.861(50)
XRD chart Lasalite

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

Morphology

Das Mineral kristallisiert in blockig-isometrischen, parallel [010] gestreckten Kristallen und bildet ferner massive Krusten aus verrundeten, 1-2 mm großen Kristallen. Idiomorphe Kristalle zeigen die Flächenformen {100}, {010}, {001}, {111} und {111}.

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

1

Density (g/cm³)

2.38 gem.

2.376 ( ρ calc. Mineralienatlas )

Cleavages

keine

Tenacity

spröde

Instability

bei längerer Lagerung an trockener Luft dehydriert es zu einemgelben Pulver

Chemical Properties and Tests

Gut und schnell löslich in Wasser. Unter dem Elektronenstrahl schnelle Dehydration. Auch bei geringer Luftfeuchtigkeit Dehydration der Kristalle zu einem gelben Pulver.

(Co-)Type locality

(Co-)Type locality

USA/Utah/San Juan Co./La Sal/La Sal Creek/Vanadium Queen Mine

Paragenesis of type material

Rossit (Metarossit), Dickthomssenit

Preface

Name from

Der Name begründet sich auf den Ort "La Sal" (San Juan County, SO Utah), der Typfundort Vanadium Queen Mine liegt im La Sal District.

Author (Name, Year)

John M. Hughes et al., 2008

Additional Information

Entdeckt wurde das Mineral vom Sammler Joe Marty aus Salt Lake City.

References

J.M. Hughes et al., Canad. Mineral. 46 (2008) S. 1365-1372.

Neue Mineralien April 2007 von der CNMNC (minerals07-04.pdf)

S. Weiß: Neue Mineralien. Lapis Jhrg. 34, Nr. 2 (2009) S. 44.

Mineralien Welt 03/09, Steffen Jahn, Neue Mineralien

IMA group assignments

Other languages

German

Lasalit

English

Lasalite

Russian

Ласалит

Alternative Name

Lsasalite

CNMNC (IMA)-Number

IMA 2007-005

CNMNC symbol

Symbol

Las

Locations with GPS information