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Uramphite (Uramphit)

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Uramphit auf Kohle
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Uramphit auf Kohle
Bildbreite: 12 mm; Fundort: Tura Kavak, Min-Kush, Molo-Too-Gebirge, Naryn Oblast, Kirgistan
Copyright: Pavel M. Kartashov; Contribution: slugslayer
Location: Kirgistan/Naryn Oblast/Moldo-Too-Gebirge/Min-Kush/Tura-Kavak Uran-Kohle-Lagerstätte
Mineral: Uramphite
Image: 1261355565
License: Usage for Mineralienatlas project only
Uramphit auf Kohle

Bildbreite: 12 mm; Fundort: Tura Kavak, Min-Kush, Molo-Too-Gebirge, Naryn Oblast, Kirgistan
Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-12-21
Locality: Tura-Kavak Uran-Kohle-Lagerstätte / Min-Kush / Moldo-Too-Gebirge / Naryn Oblast / Kirgistan

Collectors Summary

Color weiß, blass grün, flaschengrün
Streak color grünlichweiß
Lustre Glasglanz
Hardness (Mohs) 2.5
Solubility +++ Säuren
Crystal System tetragonal, P4/nmm

Chemism

Chemical formula

(NH4)(UO2)(PO4)·3H2O

Chemical composition

Phosphor, Sauerstoff, Stickstoff, Uran, Wasserstoff

Unit weight: 437.0837342 u; Number of atoms in the formula: 22

Info

Empirical formula:

(NH4)(UO2)(PO4)·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

2.31

10

45.45

1.0079470

10.0794700
Nitrogen

N

3.20

1

4.55

14.0067200

14.0067200
Oxygen

O

32.94

9

40.91

15.9994300

143.9948700
Phosphorus

P

7.09

1

4.55

30.9737612

30.9737612
Uranium

U

54.46

1

4.55

238.0289130

238.0289130

Strunz 9th edition incl. updates

8.EB.15

8: Phosphate, Arsenate, Vanadate
E: Uranylphosphate und Arsenate
B: UO2:RO4 = 1:1
15:

Lapis Classification

VII/E.02-160

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
E: Uranyl-Phosphate/Arsenate und Uranyl-Vanadate mit [UO2] 2+- [PO4]/[AsO4] 3- und [UO2] 2+-[V2O8] 6-, sowie isotype Vanadate (Sincosit-Reihe)
2: Meta-Autunit-Gruppe

Classification by Hölzel

8.EA.320

8: PHOSPHATES ARSENATES VANADATES
E: Uranyl (Phospates-Arsenates-Vanadates)
A: Tetragonal Uranyl (Phosphates-Arsenates)
3: C large, V=1 Trögerite-Group

Dana 8th edition

40.02a.07.01

40: Hydrated Phosphates, etc
02a: Hydrated Phosphates, etc where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Meta-Autunite group  ⇒ Meta-Autunite subgroup

Optical Properties

Color

weiß, blass grün, flaschengrün

Streak color

grünlichweiß

Diaphaneity (Transparency)

transparent bis durchscheinend

Lustre

Glasglanz

max. Birefringence

0.021
Birefringence chart\! Uramphite title=Birefringence chart Uramphite

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

1.564

RI value β

1.585

RI value γ / ε

1.585

Ri mean

1.578

2V angle

Biaxial (-) 2°

Optical Data Luminescence

Color LW-UV (365nm)

  

grün

LW-UV Intensity

mittel

Most Common Activator

(UO2)2+ (Uranyl-Ion) spezifisch

Afterglow (Persistant Luminescence)

Mit bloßem Auge konnte keine Phosphoreszenz festgestellt werden.

Crystallography

Crystal System

tetragonal

Class (H-M)

4/mmm

Space Group number

129

Space Group

P4/nmm

Cell parameters a (Å)

7.01

Cell parameters b (Å)

-

Cell parameters c (Å)

9.05

Cell parameters a/b or c/a

1.291

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volumne (ų)

444.718

X-Ray Powder Diffraction

3.78(100),
3.24(70),
2.75(80),
2.22(90),
2.12(80),
1.694(80),
1.399(70),
1.267(70)
XRD chart Uramphite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.7

3.264 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Kirgistan/Naryn Oblast/Moldo-Too-Gebirge/Min-Kush/Tura-Kavak Uran-Kohle-Lagerstätte

Preface

Generation conditions

bildet sich auf gering inkohlter Kohle sedimentärer Kohlelagerstätten, wo uranhaltiges Grundwasser mit Ammoniumionen reagiert

Associations

Meta-Autunit, Gips

Name from

der Zusammensetzung der Ione: URanyl, AMmonium, PHosphat

Author (Name, Year)

Nekrasova, 1957

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

Handbook of Mineralogy (Anthony et al.), 4 (2000), 612

Fleischer M. (1959) New mineral names, American Mineralogist 44, 464-470

IMA group assignments

 
Meta-Autunite group
 
 
 

 
 
Meta-Autunite subgroup
 
 
 

 
 
 
Chernikovite
(H3O)(UO2)(PO4)·3H2O
tetragonal
P4/nmm

 
 
 
Metanatroautunite
Na(UO2)(PO4)·3H2O
tetragonal
P4/ncc

 
 
 
Meta-ankoleite
K(UO2)(PO4)·3H2O
tetragonal
P4/ncc

 
 
 
Meta-autunite
Ca(UO2)2(PO4)2·2-6H2O
tetragonal
P4222

 
 
 
Uramarsite
(NH4,H3O)2(UO2)2(AsO4,PO4)2·6H2O
tetragonal
P4/mmm

 
 
 
Uramphite
(NH4)(UO2)(PO4)·3H2O
tetragonal
P4/nmm

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Actuality: 15. Mar 2023 - 14:40:07

Other languages

Spanish

Uramfita

German

Uramphit

English

Uramphite

French

Uramphite

Russian

Урамфит

Alternative Name

Italian

Uramphita

CNMNC symbol

Symbol

Uap