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Uranopolycrase

Pictures (7 Images total)

Uranopolykras
Views (Image: 1373529789): 1215, 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 2013-07-11
Locality: Gang Rosina (Filone Rosina) / San Piero in Campo / Campo nell'Elba / Elba, Insel / Livorno, Provinz / Toskana (Toscana) / Italien
Uranopolykras
Views (Image: 1241605948): 1397
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 (Image: 1275217613): 1118
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 (Image: 1218821250): 1197
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 (Image: 1280149500): 1048
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 (Image: 1413194345): 580
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

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

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

German pages

DeWikiPedia - search for: Uranopolykras
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Mineralienatlas.de (Forum) - search for: Uranopolykras

English pages

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RRUFF - Raman, XRD and other mineral data - search for: Uranopolycrase
RRUFF - References and PDF downloads - search for: Uranopolycrase
American-Mineralogist-Crystal-Structure-Database - search for: Uranopolycrase
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Russian pages

Webmineral.ru - search for: Уранополикраз

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German pages

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Locations with GPS information