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Yttrotungstite-(Y) (Yttrotungstit-(Y))

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Yttrotungstit-(Y) xx
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Yttrotungstit-(Y) xx

Kramat Pulai Mine,Pulai/Perak,Malaysia; Bildbreite 4,9 mm

Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2019-05-23
Locality: Kramat Pulai Mine / Pulai / Kinta Valley / Perak / Malaysia

Collectors Summary

Color blassgelb
Streak color gelblichweiß
Crystal System monoklin, P21/m

Chemism

Chemical formula

YW2O6(OH)3

Chemical composition

Yttrium, Sauerstoff, Wasserstoff, Wolfram

Unit weight: 603.606563 u; Number of atoms in the formula: 15

Info

Empirical formula:

YW2O6(OH)3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.50

3

20.00

1.0079470

3.0238410

Oxygen

O

23.86

9

60.00

15.9994300

143.9948700

Yttrium

Y

14.73

1

6.67

88.9058520

88.9058520

Tungsten

W

60.91

2

13.33

183.8410000

367.6820000

Analysis wt%

WO3 : 71.45, Al2O3 : 0.87, Ce2O3 : 2.06, Nd2O3 : 2.33, Sm2O3 : 0.76, Gd2O3 : 1.27, Dy2O3 : 1.38, Er2O3 : 1.15, Yb2O3 : 1.18, Y2O3 : 10.29, H2O : 5.03, Ln2O3 : 21.53 (Ref: Mineralogical Magazine 71)

Strunz 9th edition incl. updates

4.FD.20

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
F: Hydroxide (ohne V oder U)
D: Hydroxide mit OH, ohne H2O; Ketten aus kantenverknüpften Oktaeder
20:Yttrotungstit-Gruppe

Lapis Classification

IV/E.02-070

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

Classification by Hölzel

4.EC.270

4: OXIDES
E: R2O5 RO3 and others
C: Woxides

Dana 8th edition

49.03.03.02

49: Basic and Hydrated Molybdates and Tungstates
03: Basic and Hydrated Molybdates and Tungstates (Hydrated, containing Hydroxyl or Halogen)
03: Yttrotungstite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

blassgelb

Streak color

gelblichweiß

max. Birefringence

0.13

Birefringence chart\! Yttrotungstite-(Y) title=Birefringence chart Yttrotungstite-(Y)

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

1.89

RI value β

1.98

RI value γ / ε

2.02

Ri mean

1.963

2V angle

Biaxial (-) 68°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

11

Space Group

P21/m

Cell parameters a (Å)

6.95

Cell parameters b (Å)

8.64

Cell parameters c (Å)

5.77

Cell parameters a/b or c/a

0.804

Cell parameters c/b

0.668

Cell parameters α

90°

Cell parameters β

104.93

Cell parameters γ

90°

Z

2

Volumne (ų)

334.78

X-Ray Powder Diffraction

6.73(70),
4.98(80),
4.684(100),
3.36(70),
3.27(100),
2.869(70),
2.790(70),
2.028(90)

XRD chart Yttrotungstite-(Y)

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)

5.96 (gemessen)

5.988 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Beard, 1950

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 618

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

'Unnamed (Nd-analogue of Yttrotungstite-(Ce))'

(Nd,Ce,La)W2O6(OH)3

4.FD.20

Yttrotungstite-(Ce)

CeW2O6(OH)3

monoklin : 2, 2/m : P21, P21/m

4.FD.20

Yttrotungstite-(Y)

YW2O6(OH)3

monoklin : 2/m : P21/m

4.FD.20

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Tungstite

WO3·H2O

orthorhombisch : mmm : Pmnb

IV/E.02-010

Meymacite

WO3·2H2O

amorph

IV/E.02-020

Hydrotungstite

H2WO4·H2O

monoklin : 2, m, 2/m : P21, Pm, P2/m

IV/E.02-030

Anthoinite

AlWO3(OH)3

triklin : 1, 1

IV/E.02-050

Mpororoite

Al2O(WO4)2·6H2O

IV/E.02-060

Yttrotungstite-(Y)

YW2O6(OH)3

monoklin : 2/m : P21/m

IV/E.02-070

'Cerotungstite-(Ce)'

CeW2O6(OH)3

monoklin : 2/m : P21/m

IV/E.02-080

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Tungstite

WO3·H2O

orthorhombisch : mmm : Pmnb

4.EC.200

Anthoinite

AlWO3(OH)3

triklin : 1, 1

4.EC.235

Bamfordite

Fe3+Mo2O6(OH)3

triklin : 1 : P1

4.EC.240

'Cerotungstite-(Ce)'

CeW2O6(OH)3

monoklin : 2/m : P21/m

4.EC.260

Yttrotungstite-(Y)

YW2O6(OH)3

monoklin : 2/m : P21/m

4.EC.270

Yttrotungstite-(Ce)

CeW2O6(OH)3

monoklin : 2, 2/m : P21, P21/m

4.EC.280

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Tengchongite

CaU66+Mo26+O25·12H2O

orthorhombisch : 222 : A2122

49.03.01.02

Yttrotungstite-(Ce)

CeW2O6(OH)3

monoklin : 2, 2/m : P21, P21/m

49.03.03.01

Yttrotungstite-(Y)

YW2O6(OH)3

monoklin : 2/m : P21/m

49.03.03.02

Mpororoite

Al2O(WO4)2·6H2O

49.03.04.01

Uranotungstite

(Fe2+,Ba,Pb)(UO2)2WO4(OH)4·12H2O

49.03.05.01

Rankachite

CaFe2+V45+W86+O36·12H2O

monoklin : 2/m : P21/m

49.03.06.01

Bamfordite

Fe3+Mo2O6(OH)3

triklin : 1 : P1

49.03.07.01

Other languages

Spanish

Itrotungstita-(Y)

German

Yttrotungstit-(Y)

English

Yttrotungstite-(Y)

French

Yttrotungstite-(Y)

Russian

Иттротунгстит-(Y)

Alternative Name

Yttrotungstite

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

German pages

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Russian pages

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Notice: "Undefined variable: ub"