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Alwilkinsite-(Y)

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Alwilkinsit-(Y)
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Alwilkinsit-(Y)

gelbe Kristallkrusten von Alwilkinsit-(Y), Limes, Val di Daone, Trentino, Italien; BB < 1 mm

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2019-12-21
Locality: Limes / Val di Daone / Judikarien (Val Giudicarie) / Trentino (Trient), Provinz / Trentino-Südtirol (Trentino-Alto Adige), Region / Italien

Collectors Summary

Color gelblich grün
Hardness (Mohs) 2 - 2.5
Fracture splittrig
Crystal System orthorhombisch, P212121

Chemism

Chem­ical formula

Y(UO2)3(SO4)2O(OH)3(H2O)7·7H2O

Empir­ical formula (anal­y­sis)

(Y0.66Dy0.08Gd0.06Er0.05Nd0.03Yb0.03Sm0.02Ce0.01)Σ0.94 (H2O)7[(UO2)3(S1.01O4)2O(OH)3]·7H2O

Addi­tional chem. informa­tion

Sekundäre Alterungsphase

Chem­ical com­po­si­tion

Yttrium, Sauerstoff, Schwefel, Uran, Wasserstoff

Unit weight: 1425.49018232 u; Number of atoms in the formula: 68.96

Info

Empirical formula:

(Y0.66Dy0.08Gd0.06Er0.05Nd0.03Yb0.03Sm0.02Ce0.01)(H2O)7[(UO2)3(S1.01O4)2O(OH)3]·7H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.19

31

44.95

1.0079470

31.2463570

Oxygen

O

35.92

32

46.40

15.9994300

511.9817600

Sulfur

S

4.54

2.02

2.93

32.0655000

64.7723100

Yttrium

Y

4.12

0.66

0.96

88.9058520

58.6778623

Cerium

Ce

0.10

0.01

0.01

140.1161000

1.4011610

Neodymium

Nd

0.30

0.03

0.04

144.2430000

4.3272900

Samarium

Sm

0.21

0.02

0.03

150.3630000

3.0072600

Gadolinium

Gd

0.66

0.06

0.09

157.2530000

9.4351800

Dysprosium

Dy

0.91

0.08

0.12

162.5001000

13.0000080

Erbium

Er

0.59

0.05

0.07

167.2593000

8.3629650

Ytterbium

Yb

0.36

0.03

0.04

173.0430000

5.1912900

Uranium

U

50.09

3

4.35

238.0289130

714.0867390

Strunz 9th edi­tion incl. updates

7.EC.

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
E: Uranylsulfate
C: Mit mittelgroßen und großen [Kationen]

IMA sta­tus

anerkannt - CNMNC Jan. 2016

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

gelblich grün

max. Birefrin­gence

0.028

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

α = 1.573(1)

RI value β

β = 1.581(1)

RI value γ / ε

γ = 1.601(1)

Ri mean

1.585

2V angle

Biaxial (+) 65.3(1)° (gemessen)

Ori­enta­tion

X = c, Y = a, Z = b

Dis­per­sion

r < v, schwach

Pleochro­ism

keiner

Optical Data Luminescence

Lumi­nes­cence

matte grünlich graue Floreszenz

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

222

Space Group number

19

Space Group

P212121

Cell param­e­ters a (Å)

11.6194(5)

Cell param­e­ters b (Å)

12.4250(6)

Cell param­e­ters c (Å)

19.449(1)

Cell param­e­ters a/b or c/a

0.935

Cell param­e­ters c/b

1.565

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

2807.872

Kristall struc­ture

neuer Strukturtyp, Struktur bestimmt

X-Ray Pow­der Diffrac­tion

9.88(100),
7.47(13),
5.621(17),
4.483(18),
3.886(14),
3.322(46),
3.223(13),
3.145(16)

XRD chart Alwilkinsite-(Y)

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

Physical Properties

Hard­ness (Mohs)

2 - 2.5

Density (g/cm³)

3.371 (berechnet)

3.372 ( ρ calc. Mineralienatlas )

Frac­ture

splittrig

Tenac­ity

leicht flexibel bevor spröde

(Co-)Type locality

(Co-)Type locality

USA/Utah/San Juan Co./White Canyon District/Red Canyon/Blue Lizard Mine

Type mate­r­ial

Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA

Col­lec­tion number of type mate­r­ial

65629

Preface

Author (Name, Year)

Kampf, A.R., Plášil, J., Cejka, J., Marty, J., Škoda, R. and Lapcák, L. (2016)

References

Kampf, A.R., Plášil, J., Cejka, J., Marty, J., Škoda, R. and Lapcák, L. (2016) Alwilkinsite-(Y), IMA 2015-097. CNMNC Newsletter No. 29, February 2016, page 204; Mineralogical Magazine, 80, 199–205

Authors: Kampf, Anthony R.; Plášil, Jakub; Čejka, Jiří; Marty, Joe; Škoda, Radek; Lapčák, Ladislav - Alwilkinsite-(Y), a new rare-earth uranyl sulfate mineral from the Blue Lizard mine, San Juan County, Utah, USA - Mineralogical Magazine, Appeared or available online: 10. August 2016

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

Fermiite

Na4(UO2)(SO4)3·3H2O

orthorhombisch : mm2 : Pmn21

7.EC.

Bobcookite

NaAl(UO2)2(SO4)4·18H2O

triklin : 1 : P1

7.EC.

Feynmanite

Na(UO2)(SO4)(OH)·3.5H2O

monoklin : 2/m : P2/n

7.EC.

Meisserite

Na5(UO2)(SO4)3(SO3OH)(H2O)

triklin : 1 : P1

7.EC.

Běhounekite

U(SO4)2(H2O)4

orthorhombisch : mmm : Pnma

7.EC.

Klaprothite

Na6(UO2)(SO4)4·4H2O

monoklin : 2/m : P21/c

7.EC.

Ottohahnite

Na6(UO2)2(SO4)5(H2O)7·1.5H2O

triklin : 1 : P1

7.EC.

Péligotite

Na6(UO2)(SO4)4·4H2O

triklin : 1 : P1

7.EC.

Mathesiusite

K5(UO2)4(SO4)4(VO5)·4H2O

tetragonal : 4/m : P4/n

7.EC.

Navrotskyite

K2Na10(UO2)3(SO4)9·2H2O

orthorhombisch : mmm : Pbcm

7.EC.

Belakovskiite

Na7(UO2)(SO4)4(SO3OH)(H2O)3

triklin : 1 : P1

7.EC.

Bluelizardite

Na7(UO2)(SO4)4Cl(H2O)2

monoklin : 2/m : C2/c

7.EC.

Geschieberite

K2(UO2)(SO4)2·2H2O

orthorhombisch : mm2 : Pna21

7.EC.

Adolfpateraite

K(UO2)(SO4)(OH)(H2O)

monoklin : 2/m : P21/c

7.EC.

Plášilite

Na(UO2)(SO4)(OH)·2H2O

monoklin : 2/m : P21/c

7.EC.

Seaborgite

LiK2Na6(UO2)(SO4)5(SO3OH)(H2O)

triklin : 1 : P1

7.EC.

Wetherillite

Na2Mg(UO2)2(SO4)4·18H2O

monoklin : 2/m : P21/c

7.EC.

Oppenheimerite

Na2(UO2)(SO4)2·3H2O

triklin : 1 : P1

7.EC.

Alwilkinsite-(Y)

Y(UO2)3(SO4)2O(OH)3(H2O)7·7H2O

orthorhombisch : 222 : P212121

7.EC.

Ammoniomathesiusite

(NH4)5(UO2)4(SO4)4(VO5)·4H2O

tetragonal : 4/m : P4/n

7.EC.

Pseudomeisserite-(NH4)

(NH4)2Na4[(UO2)2(SO4)5]·4H2O

monoklin : 2/m : P21/c

7.EC.

Zippeite

K3(UO2)4(SO4)2O3(OH)·3H2O

monoklin : 2 : C2

7.EC.05

Redcanyonite

(NH4)2Mn[(UO2)4O4(SO4)2](H2O)4

monoklin : 2/m : C2/m

7.EC.05

Zinczippeite

Zn(UO2)2(SO4)O2·3.5H2O

monoklin : 2/m : C2/m

7.EC.05

Natrozippeite

Na5(UO2)8(SO4)4O5(OH)3·12H2O

monoklin : 2/m : P21/n

7.EC.05

Cobaltzippeite

Co(UO2)2(SO4)O2·3.5H2O

monoklin : 2/m : C2/m

7.EC.05

Nickelzippeite

Ni2(UO2)6(SO4)3(OH)10·16H2O

monoklin : 2/m : C2/m

7.EC.05

Pseudojohannite

Cu6.5(UO2)8O8(SO4)4(OH)5·25H2O

triklin : 1 : P1

7.EC.05

Ammoniozippeite

(NH4)2[(UO2)2(SO4)O2]·H2O

orthorhombisch : mmm : Ccmb

7.EC.05

Magnesiozippeite

Mg(UO2)2(SO4)O2·3.5H2O

monoklin : 2/m : C2/m

7.EC.05

Rabejacite

Ca2[(UO2)4O4(SO4)2](H2O)8

triklin : 1 : P1

7.EC.10

Sejkoraite-(Y)

Y2(UO2)8O6(SO4)4(OH)2·26H2O

triklin : 1 : P1

7.EC.15

Marécottite

Mg3[(UO2)4O3(OH)(SO4)2]2(H2O)28

triklin : 1 : P1

7.EC.15

Plavnoite

K0.8Mn0.6[(UO2)2O2(SO4)]·3.5H2O

monoklin : 2/m : C2/c

7.EC.20

Other languages

German

Alwilkinsit-(Y)

English

Alwilkinsite-(Y)

Russian

Алвилкинсит-(Y)

IMA Number

IMA 2015-097

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

German pages

DeWikiPedia - search for: Alwilkinsit-(Y)
Google-Bilder-Suche - search for: Alwilkinsit-(Y)
Mineralogisch-Petrographisches-Institut Hamburg - search for: Alwilkinsit-(Y)

English pages

Mindat - search for: Alwilkinsite-(Y)
Webmineral - search for:Alwilkinsite-(Y)
Handbook-of-Mineralogy - search for: Alwilkinsite-(Y)
RRUFF - Raman, XRD and other mineral data - search for: Alwilkinsite-(Y)
RRUFF - References and PDF downloads - search for: Alwilkinsite-(Y)
American-Mineralogist-Crystal-Structure-Database - search for: Alwilkinsite-(Y)
Athena - search for: Alwilkinsite-(Y)

Russian pages

Webmineral.ru - search for: Алвилкинсит-(Y)

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Alwilkinsit-(Y)
Crystal-Treasure.com - search for: Alwilkinsit-(Y)
Bosse - search for: Alwilkinsit-(Y)

Locations with GPS information