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Uranopolycrase

Pictures (7 Images total)

Uranopolykras
Views (File:
1373529789
): 1278, Rating: 8.75
Uranopolykras
Größe: 1,42 mm; Fundort: Gang Rosina, San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno, Italien
Copyright: Matteo Chinellato; Contribution: Hg
Location: Italien/Toskana (Toscana)/Livorno, Provinz/Elba, Insel/Campo nell'Elba/San Piero in Campo/Gang Rosina (Filone Rosina)
Mineral: Uranopolycrase
Image: 1373529789
Rating: 8.75 (votes: 4)
License: Usage for Mineralienatlas project only
Uranopolykras

Größe: 1,42 mm; Fundort: Gang Rosina, San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno, Italien
Copyright: Matteo Chinellato
Contribution: Hg 2013-07-11
Locality: Gang Rosina (Filone Rosina) / San Piero in Campo / Campo nell'Elba / Elba, Insel / Livorno, Provinz / Toskana (Toscana) / Italien
Uranopolykras
Views (File:
1241605948
): 1421
Uranopolykras
Größe: 1,03 mm; Fundort: Grotta d'Oggi, San Piero in Campo, Campo nell'Elba,Insel Elba, Livorno, Toskana (Toscana), Italien
Copyright: Matteo Chinellato; Contribution: Hg
Location: Italien/Toskana (Toscana)/Livorno, Provinz/Elba, Insel/Campo nell'Elba/San Piero in Campo/Grotta d'Oggi
Mineral: Uranopolycrase
Image: 1241605948
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
Uranopolykras

Größe: 1,03 mm; Fundort: Grotta d'Oggi, San Piero in Campo, Campo nell'Elba,Insel Elba, Livorno, Toskana (Toscana), Italien
Copyright: Matteo Chinellato
Contribution: Hg 2009-05-06
Locality: Grotta d'Oggi / San Piero in Campo / Campo nell'Elba / Elba, Insel / Livorno, Provinz / Toskana (Toscana) / Italien
Uranopolykras
Views (File:
1275217613
): 1144
Uranopolykras
Kristallgröße: 0,7 mm, Fundort: Gang Rosina, San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno
Copyright: Enrico Bonacina; Contribution: thdun5
Collection: Domenico Preite
Location: Italien/Toskana (Toscana)/Livorno, Provinz/Elba, Insel/Campo nell'Elba/San Piero in Campo/Gang Rosina (Filone Rosina)
Mineral: Uranopolycrase
Image: 1275217613
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Uranopolykras

Kristallgröße: 0,7 mm, Fundort: Gang Rosina, San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno
Collection: Domenico Preite
Copyright: Enrico Bonacina
Contribution: thdun5 2010-05-30
Locality: Gang Rosina (Filone Rosina) / San Piero in Campo / Campo nell'Elba / Elba, Insel / Livorno, Provinz / Toskana (Toscana) / Italien
Uranopolykras
Views (File:
1218821250
): 1225
Uranopolykras
Größe: 8 mm; Fundort: Fronte del Prete, San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno, Toskana (Toscana), Italien
Copyright: Matteo Chinellato; Contribution: Hg
Location: Italien/Toskana (Toscana)/Livorno, Provinz/Elba, Insel/Campo nell'Elba/San Piero in Campo/Fonte del Prete
Mineral: Uranopolycrase
Image: 1218821250
Rating: 4.5 (votes: 2)
License: Usage for Mineralienatlas project only
Uranopolykras

Größe: 8 mm; Fundort: Fronte del Prete, San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno, Toskana (Toscana), Italien
Copyright: Matteo Chinellato
Contribution: Hg 2008-08-15
Locality: Fonte del Prete / San Piero in Campo / Campo nell'Elba / Elba, Insel / Livorno, Provinz / Toskana (Toscana) / Italien
Uranopolykras
Views (File:
1280149500
): 1079
Uranopolykras
Kristallgröße: 0,9 mm, Fundort: Gang Rosina, San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno
Copyright: Enrico Bonacina; Contribution: thdun5
Collection: Domenico Preite
Location: Italien/Toskana (Toscana)/Livorno, Provinz/Elba, Insel/Campo nell'Elba/San Piero in Campo/Gang Rosina (Filone Rosina)
Mineral: Uranopolycrase
Image: 1280149500
License: Usage for Mineralienatlas project only
Uranopolykras

Kristallgröße: 0,9 mm, Fundort: Gang Rosina, San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno
Collection: Domenico Preite
Copyright: Enrico Bonacina
Contribution: thdun5 2010-07-26
Locality: Gang Rosina (Filone Rosina) / San Piero in Campo / Campo nell'Elba / Elba, Insel / Livorno, Provinz / Toskana (Toscana) / Italien
Uranopolykras
Views (File:
1413194345
): 608
Uranopolykras
Bildbreite: 1,7 mm; Fundort: San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno, Toskana (Toscana), Italien
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Italien/Toskana (Toscana)/Livorno, Provinz/Elba, Insel/Campo nell'Elba/San Piero in Campo
Mineral: Uranopolycrase
Image: 1413194345
License: Usage for Mineralienatlas project only
Uranopolykras

Bildbreite: 1,7 mm; Fundort: San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno, Toskana (Toscana), Italien
Copyright: Stephan Wolfsried
Contribution: Hg 2014-10-13
Locality: San Piero in Campo / Campo nell'Elba / Elba, Insel / Livorno, Provinz / Toskana (Toscana) / Italien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color blass grau mit bläulichen Farbton und dunkelrot-braun internen Reflektionen
Streak color graulich braun
Lustre Diamantglanz
Hardness (Mohs) 5.75
Cleavages gut {100}
Crystal System orthorhombisch, Pbcn

Chemism

Chemical formula

(U,Y)(Ti,Nb,Ta)2(O,OH)6

Empirical formula (analysis)

(U0.62Y0.29Th0.07Mn0.03Ca0.02Nd0.01)(Ti1.46Nb0.36Ta0.12)O6

Chemical composition

Niob, Tantal, Titan, Yttrium, Sauerstoff, Uran, Wasserstoff

Unit weight: 414.538023057 u; Number of atoms in the formula: 8.98

Info

Empirical formula:

(U0.62Y0.29Th0.07Mn0.03Ca0.02Nd0.01)(Ti1.46Nb0.36Ta0.12)O6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

23.16

6

66.82

15.9994300

95.9965800
Calcium

Ca

0.19

0.02

0.22

40.0784000

0.8015680
Titanium

Ti

16.86

1.46

16.26

47.8671000

69.8859660
Manganese

Mn

0.40

0.03

0.33

54.9380499

1.6481415
Yttrium

Y

6.22

0.29

3.23

88.9058520

25.7826971
Niobium

Nb

8.07

0.36

4.01

92.9063820

33.4462975
Neodymium

Nd

0.35

0.01

0.11

144.2430000

1.4424300
Tantalum

Ta

5.24

0.12

1.34

180.9479100

21.7137492
Thorium

Th

3.92

0.07

0.78

232.0381100

16.2426677
Uranium

U

35.60

0.62

6.90

238.0289130

147.5779261

Analysis wt%

UO2 : 39.08, ThO2 : 4.14, Y2O3 : 7.78, MnO : 0.48, TiO2 : 27.36, Nb2O5 : 11.27, Ta2O5 : 5.98, Ln2O3 : 8.15 (Ref: European Journal of Mineralogy 93)

Strunz 9th edition incl. updates

4.DG.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
G: Mit großen (± mittelgroßen) [Kationen]; Ketten kantenverknüpfter Oktaeder
05:Euxenit-Gruppe

Lapis Classification

IV/D.19-015

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)

Classification by Hölzel

4.DJ.120

4: OXIDES
D: Dioxides
J: Titanates, Niobates and Tantalates, C large, V medium ò 2
1: Euxenite-Group

Dana 8th edition

08.03.08.05

08: Multiple Oxides with Nb, Ta, and Ti
03: Multiple Oxides with Nb, Ta, and Ti where A (B2O6)
08: Polycrase Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

blass grau mit bläulichen Farbton und dunkelrot-braun internen Reflektionen

Streak color

graulich braun

Diaphaneity (Transparency)

opak

Lustre

Diamantglanz

Anisotropism

isotropisch

Reflectivity: (Lambda nm) ↓, ↑, Ø

(470) 23.6, ,23.6
(546) 21.5, ,21.5
(589) 22.3, ,22.3
(650) 25.1, ,25.1
Reflection chart Uranopolycrase

Reflectivity Ø

23.13

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

60

Space Group

Pbcn

Cell parameters a (Å)

14.51

Cell parameters b (Å)

5.558

Cell parameters c (Å)

5.173

Cell parameters a/b or c/a

2.611

Cell parameters c/b

0.931

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

417.185

X-Ray Powder Diffraction

3.21(10),
2.99(100),
2.78(20),
2.51(10),
1.90(50),
1.86(10),
1.77(30),
1.48(40)
XRD chart Uranopolycrase

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)

5.75

VHN (Hardness Vickers)

659 (20g)

Density (g/cm³)

6.6 (berechnet) 5.5 - 6 (gemssen)

6.6 ( ρ calc. Mineralienatlas )

Cleavages

gut {100}

Radioactivity

radioaktiv

(Co-)Type locality

(Co-)Type locality

Italien/Toskana (Toscana)/Livorno, Provinz/Elba, Insel/Campo nell'Elba/San Piero in Campo/Fonte del Prete

Type material

Universität von Pisa, Pisa, Italien

Preface

Name from

Wegen seines Uran-Anteils und seiner Ähnlichkeit zu Polykras-(Y)

Author (Name, Year)

Aurisicchio & Orlandi & Pasero & Perchiazzi, 1993

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

European Journal of Mineralogy 5 (1993), 1161

Other languages

Spanish

Uranopolicrasa

English

Uranopolycrase

French

Uranopolycrase

German

Uranopolykras

Russian

Уранополикраз

CNMNC (IMA)-Number

IMA 1990-046

CNMNC symbol

Symbol

Uplc

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 3du_1k-wvUytkrkSqX6z2g
GUID (Global unique identifier) D6BFDBDD-B04F-4CBD-AD92-B912A97EB3DA
Database ID 3989