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Oppenheimerite

Pictures (2 Images total)

Oppenheimerite white Hexahydrite
Views (File:
1475007035
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Oppenheimerite white Hexahydrite
Pale green subparallel growths of water worn oppenheimerite on quartz with white hexahydrite. Visually, oppenheimerite is quite similar to fermiite, but its crystal aggregates are more often found as subparallel growths. Single xl XRD confirmed; Field of view: 1.8 mm; Blue Lizard Mine, Red Canyon, White Canyon District, San Juan Co., Utah, USA
Copyright: Travis Olds; Contribution: Stefan
Location: USA/Utah/San Juan Co./White Canyon District/Red Canyon/Blue Lizard Mine
Mineral: Hexahydrite, Oppenheimerite
Image: 1475007035
Rating: 8 (votes: 1)
License: Creative Commons - Attribution (CC-BY) V.3.0
Oppenheimerite white Hexahydrite

Pale green subparallel growths of water worn oppenheimerite on quartz with white hexahydrite. Visually, oppenheimerite is quite similar to fermiite, but its crystal aggregates are more often found ...

Copyright: Travis Olds
Contribution: Stefan 2016-09-27
Locality: Blue Lizard Mine / Red Canyon / White Canyon District / San Juan Co. / Utah / USA
Oppenheimerit
Views (File:
1573674281
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Oppenheimerit
Aggregate von tafligen Kristallen, BB < 1 mm
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: USA/Utah/San Juan Co./White Canyon District/Red Canyon/Blue Lizard Mine
Mineral: Oppenheimerite
Image: 1573674281
License: Usage for Mineralienatlas project only
Oppenheimerit  X
Analysed with X-ray diffraction XRD

Aggregate von tafligen Kristallen, BB < 1 mm

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2019-11-13
Locality: Blue Lizard Mine / Red Canyon / White Canyon District / San Juan Co. / Utah / USA

Collectors Summary

Color grünlichgelb
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 2.5
Cleavages gut {110}, {011}, {101}
Fracture unregelmäßig
Solubility +++ H2O, leicht zerfließend
Crystal System triklin, P1
Morphology nach [111] gestreckte Prismen mit {100}, {010}, {001}, {101}, {011}, {110}, {101}

Chemism

Chemical formula

Na2(UO2)(SO4)2·3H2O

Empirical formula (analysis)

Na1.94(U0.97O2)(S1.02O4)2(H2O)3

Chemical composition

Natrium, Sauerstoff, Schwefel, Uran, Wasserstoff

Unit weight: 554.942091798 u; Number of atoms in the formula: 23.95

Info

Empirical formula:

Na1.94(U0.97O2)(S1.02O4)2(H2O)3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.09

6

25.05

1.0079470

6.0476820

Oxygen

O

37.48

13

54.28

15.9994300

207.9925900

Sodium

Na

8.04

1.94

8.10

22.9897702

44.6001542

Sulfur

S

11.79

2.04

8.52

32.0655000

65.4136200

Uranium

U

41.61

0.97

4.05

238.0289130

230.8880456

Analysis wt%

Na2O : 10.94, UO3 : 50.77, SO3 : 29.75, H2O* : 9.85, Total : 101.31; WDX (Kampf et al. 2015); *berechnet

Strunz 9th edition incl. updates

7.EC.

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

Lapis Classification

VI/D.20-033

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
20: Uranylsulfate [UO2] 2+ – [SO4] 2-

IMA status

von der CNMNC anerkanntes Mineral; CNMNC Newsletter No. 23, Februar 2015

Mineral status

anerkanntes Mineral

Optical Properties

Color

grünlichgelb

Streak color

weiß

Diaphaneity (Transparency)

transparent

Lustre

Glasglanz

max. Birefringence

0.057

Birefringence chart\! Oppenheimerite title=Birefringence chart Oppenheimerite

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 = 1.537(1)

RI value β

β = 1.555(1)

RI value γ / ε

γ = 1.594(1)

2V angle

Biaxial (+) 72(2)° (gemessen) 70° (berechnet)

Orientation

X ≈ ⊥ {101}, Z ≈ [111]

Dispersion

r < v; moderat geneigt

Absorption

X < Y < Z

Pleochroism

X sehr blass grünlich-gelb, Y blass grünlich-gelb, Z grünlich-gelb

Optical Data Luminescence

Color LW-UV (365nm)

 

grün

LW-UV Intensity

stark

LW-UV Observation Frequency

immer (spezifisch)

MW-UV (320nm)

 

grün

MW-UV Intensity

stark

MW-UV Observation Frequency

immer (spezifisch)

Color SW-UV (254nm)

 

grün

SW-UV Intensity

stark

SW-UV Observation Frequency

immer (spezifisch)

Most Common Activator

(UO2)2+ (Uranyl-Ion) spezifisch

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell parameters a (Å)

7.9576(6)

Cell parameters b (Å)

8.1952(6)

Cell parameters c (Å)

9.8051(7)

Cell parameters a/b or c/a

0.971

Cell parameters c/b

1.196

Cell parameters α

65.967(5)°

Cell parameters β

70.281(5)°

Cell parameters γ

84.516(6)°

Z

2

Volume (ų)

549.101

Crystal structure

Neuer Strukturtyp, Struktur bestimmt

X-Ray Powder Diffraction

7.29(31), 6.85(73), 5.39(47), 4.253(29), 3.700(47), 3.257(100), 2.669(33), 2.346(28)

XRD chart Oppenheimerite

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

Morphology

nach [111] gestreckte Prismen mit {100}, {010}, {001}, {101}, {011}, {110}, {101}

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5

Density (g/cm³)

3.360 (berechnet)

3.356 ( ρ calc. Mineralienatlas )

Cleavages

gut {110}, {011}, {101}

Fracture

unregelmäßig

Tenacity

leicht teilbar

Radioactivity

vorhanden, da uranhaltig

Instability

+++ H2O, leicht zerfließend

(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
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia

Collection number of type material

65549, 65550 und 65551
4608/1

Paragenesis of type material

Fermiit, Blödit, Bluelizardit, Chalcanthit, Epsomit, Gips, Hexahydrit, Kröhnkit, Manganoblödit, Sideronatrit, Tamarugit, Wetherillit

Preface

Name from

Robert Oppenheimer
Robert Oppenheimer
Robert Oppenheimer, ca. 1944
Copyright: Public Domain; Contribution: Stefan
Image: 1451317097
License: Usage for Mineralienatlas project only

Author (Name, Year)

Anthony R. Kampf, Jakub Plašil, Anatoly V. Kasatkin, Joe Marty and Jiří Čejka

References

Kampf, A.R., Plašil, J., Kasatkin, A.V., Marty, J. and Čejka, J. (2015) Oppenheimerite, IMA 2014-073. CNMNC Newsletter No. 23, February 2015, page 55; Mineralogical Magazine, 79, 51-58.

Kampf, A.R., Plášil, J., Kasatkin, A.V., Marty, J., Čejka, J. - Fermiite, Na4(UO2)(SO4)3·3H2O and oppenheimerite, Na2(UO2)(SO4)2·3H2O, two new uranyl sulfate minerals from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine, 79 (2015), 1123-1142.

Other languages

German

Oppenheimerit

English

Oppenheimerite

CNMNC (IMA)-Number

IMA 2014-073

CNMNC symbol

Symbol

Ohm

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 0mzBW0Zu-UO8oT6fiWm3CQ
GUID (Global unique identifier) 5BC16CD2-6E46-43F9-BCA1-3E9F8969B709
Database ID 7872