https://www.mineralbox.biz
https://www.edelsteine-neuburg.de
https://www.mineral-bosse.de
https://www.mineraliengrosshandel.com
'._('einklappen').'
 

Uranosilite (Uranosilit)

Collectors Summary

Color gelblichweiß
Streak color weiß
Solubility - verdünnte HCl, verdünnte HNO3
Crystal System orthorhombisch, P22121, Pmmb, Pmcb

Chemism

Chemical formula

U6+Si7O17

Chemical composition

Silicium, Sauerstoff, Uran

Unit weight: 706.617933 u; Number of atoms in the formula: 25

Info

Empirical formula:

USi7O17

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

38.49

17

68.00

15.9994300

271.9903100

Silicon

Si

27.82

7

28.00

28.0855300

196.5987100

Uranium

U

33.69

1

4.00

238.0289130

238.0289130

Strunz 9th edition incl. updates

9.AK.40

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
K: Uranyl Insel(Neso)- und Schicht(Poly)-Silikate
40:Uranosilit-Gruppe mit U:Si = 1:7

Lapis Classification

VIII/B.35-010

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
35: Kationen mit Koordinationszahlen zwischen [8] und [12]; Uranyl-Inselsilikate mit [UO2] 2+-[SiO4] 4- und Verwandte

Classification by Hölzel

9.AO.300

9: SILICATES
A: Nesosilicates
O: Weeksite-Group

Dana 8th edition

53.03.03.02

53: Nesosilicates Nesosilicate Insular SiO4 Groups and Other Anions of Complex Cations
03: Nesosilicates Nesosilicate Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
03: Other uranyl sillicates

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelblichweiß

Streak color

weiß

max. Birefringence

0.014

Birefringence chart\! Uranosilite title=Birefringence chart Uranosilite

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

1.570

RI value γ / ε

1.584

Ri mean

1.577

2V angle

Biaxial (-) nd

Crystallography

Crystal System

orthorhombisch

Class (H-M)

222, mmm, mmm

Space Group number

18, 51, 55

Space Group

P22121, Pmmb, Pmcb

Cell parameters a (Å)

11.60

Cell parameters b (Å)

14.68

Cell parameters c (Å)

12.83

Cell parameters a/b or c/a

0.790

Cell parameters c/b

0.874

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

6

Volume (ų)

2184.795

X-Ray Powder Diffraction

11.58(90),
7.30(100),
6.19(90),
3.50(80),
3.42(60),
3.20(60),
3.08(60),
2.77(70)

XRD chart Uranosilite

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

Physical Properties

Density (g/cm³)

3.25 (berechnet)

3.222 ( ρ calc. Mineralienatlas )

Instability

- verdünnte HCl, verdünnte HNO3

Preface

Occurrences

nur in der Oxidationszone der Urangrube Brunhilde in Menzenschwand

Generation conditions

Oxidationszone; unter speziellen Bedingungen entstanden

Rareness

extrem selten

Name from

der chemischen Zusammensetzung (Uran-Silikat)

Author (Name, Year)

Walenta, 1983

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: Ionizing radiation: Radioaktiv

References

Neues Jahrbuch für Mineralogie, Monatshefte (1983), 259

Other languages

German

Uranosilit

Spanish

Uranosilita

English

Uranosilite

French

Uranosilite

CNMNC (IMA)-Number

IMA 1981-066

CNMNC symbol

Symbol

Usi

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 8zRPUwpM10i8BjA8wIQbOQ
GUID (Global unique identifier) 534F34F3-4C0A-48D7-BC06-303CC0841B39
Database ID 3990