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Phurcalite (Phurcalit)

Pictures (19 Images total)

Phurcalit
Views (File:
1469787923
): 1088
Phurcalit
von der Posey Mine im White Canyon District, San Juan Co., Utah, USA; radialnadelige gelbe Kristalle; BB = 2,3 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A002431, Donator: eschuhbauer
Location: USA/Utah/San Juan Co./White Canyon District/Red Canyon/Posey Mine
Mineral: Phurcalite
Image: 1469787923
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Phurcalit (SNr: A002431)

von der Posey Mine im White Canyon District, San Juan Co., Utah, USA; radialnadelige gelbe Kristalle; BB = 2,3 mm
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2016-07-29
Locality: Posey Mine / Red Canyon / White Canyon District / San Juan Co. / Utah / USA
Phurcalit
Views (File:
1225904097
): 1804
Phurcalit
Bildbreite: 3 mm; Fundort: Posey Mine, San Juan Co., Utah, USA
Copyright: Stephan Wolfsried; Contribution: Hg
Location: USA/Utah/San Juan Co./White Canyon District/Red Canyon/Posey Mine
Mineral: Phurcalite
Image: 1225904097
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Phurcalit

Bildbreite: 3 mm; Fundort: Posey Mine, San Juan Co., Utah, USA
Copyright: Stephan Wolfsried
Contribution: Hg 2008-11-05
Locality: Posey Mine / Red Canyon / White Canyon District / San Juan Co. / Utah / USA
Phurcalit
Views (File:
1279920591
): 1864
Phurcalit
Bildbreite: 3,6 mm, Fundort: Dos Adriana, Bergbaurevier Zapallar, Provinz Copiapo, III. Region, Chile
Copyright: Enrico Bonacina; Contribution: thdun5
Collection: Domenico Preite
Location: Chile/Atacama, Region (III. Region)/Copiapó, Provinz/Los Azules/Zapallar Bergbaugebiet/Dos Adriana
Mineral: Phurcalite
Image: 1279920591
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Phurcalit

Bildbreite: 3,6 mm, Fundort: Dos Adriana, Bergbaurevier Zapallar, Provinz Copiapo, III. Region, Chile
Collection: Domenico Preite
Copyright: Enrico Bonacina
Contribution: thdun5 2010-07-23
Locality: Dos Adriana / Zapallar Bergbaugebiet / Los Azules / Copiapó, Provinz / Atacama, Region (III. Region) / Chile
Phurcalit
Views (File:
1286872046
): 1572
Phurcalit
Größe: 1,18 mm, Fundort: Dos Adriana, Bergbaurevier Zapallar, Provinz Copiapo, III. Region, Chile
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: Chile/Atacama, Region (III. Region)/Copiapó, Provinz/Los Azules/Zapallar Bergbaugebiet/Dos Adriana
Mineral: Phurcalite
Image: 1286872046
Rating: 7.5 (votes: 2)
License: Usage for Mineralienatlas project only
Phurcalit

Größe: 1,18 mm, Fundort: Dos Adriana, Bergbaurevier Zapallar, Provinz Copiapo, III. Region, Chile
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-10-12
Locality: Dos Adriana / Zapallar Bergbaugebiet / Los Azules / Copiapó, Provinz / Atacama, Region (III. Region) / Chile
Phurcalit, BB 1,0 mm
Views (File:
1235581634
): 1588, Rating: 7
Phurcalit, BB 1,0 mm
Posey Mine, Red Canyon, San Juan Co., Utah
Copyright: Hannes Osterhammer; Contribution: eschuhbauer
Collection: Lithothek der Münchener Micromounter, Collection number: A026783, Donator: eschuhbauer
Location: USA/Utah/San Juan Co./White Canyon District/Red Canyon/Posey Mine
Mineral: Phurcalite
Image: 1235581634
Rating: 7 (votes: 4)
License: Usage for Mineralienatlas project only
Phurcalit, BB 1,0 mm (SNr: A026783)

Posey Mine, Red Canyon, San Juan Co., Utah
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: eschuhbauer 2009-02-25
Locality: Posey Mine / Red Canyon / White Canyon District / San Juan Co. / Utah / USA
Phurcalit
Views (File:
1248352588
): 1033
Phurcalit
Bildbreite: 3 mm; Fundort: Le Boucheron, Davignac, Corrèze, Limousin, Frankreich
Copyright: Jean-Marc Johannet; Contribution: Hg
Location: Frankreich/Nouvelle-Aquitaine, Region/Corrèze, Département/Ussel, Arrondissement/Davignac/Le Boucheron
Mineral: Phurcalite
Image: 1248352588
Rating: 7.33 (votes: 3)
License: Usage for Mineralienatlas project only
Phurcalit

Bildbreite: 3 mm; Fundort: Le Boucheron, Davignac, Corrèze, Limousin, Frankreich
Copyright: Jean-Marc Johannet
Contribution: Hg 2009-07-23
Locality: Le Boucheron / Davignac / Ussel, Arrondissement / Corrèze, Département / Nouvelle-Aquitaine, Region / Frankreich

You find additional Phurcalit specimen at the Geolitho Museum

Collectors Summary

Color gelb
Streak color gelblichweiß
Lustre Glasglanz - Diamantglanz
Hardness (Mohs) 2.5
Solubility +++ Säuren, +- H2O
Crystal System orthorhombisch, Pbca

Chemism

Chemical formula

Ca2(UO2)3O2(PO4)2·7H2O

Chemical composition

Calcium, Phosphor, Sauerstoff, Uran, Wasserstoff

Unit weight: 1238.2892094 u; Number of atoms in the formula: 44

Info

Empirical formula:

Ca2(UO2)3O2(PO4)2·7H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.14

14

31.82

1.0079470

14.1112580
Oxygen

O

29.72

23

52.27

15.9994300

367.9868900
Phosphorus

P

5.00

2

4.55

30.9737612

61.9475224
Calcium

Ca

6.47

2

4.55

40.0784000

80.1568000
Uranium

U

57.67

3

6.82

238.0289130

714.0867390

Analysis wt%

Ø P2O5 : 11.52, UO3 : 69.88, CaO : 9.40, H2O : 11.62 (Ref: Canadian Mineralogist 91)

Strunz 9th edition incl. updates

8.EC.10

8: Phosphate, Arsenate, Vanadate
E: Uranylphosphate und Arsenate
C: UO2:RO4 = 3:2
10:Phosphuranylit-Gruppe

Lapis Classification

VII/E.07-040

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)

Classification by Hölzel

8.EB.500

8: PHOSPHATES ARSENATES VANADATES
E: Uranyl (Phospates-Arsenates-Vanadates)
B: Orthorhombic Uranyl (Phosphates-Arsenates)
5: C large, V=24 Arsenuranylite-Group

Dana 8th edition

42.04.07.01

42: Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
04: Hydrated Phosphates, etc., Containing Hydroxyl or Halogen where (AB)5 (XO4)2 Zq · x(H2O)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelb

Streak color

gelblichweiß

Lustre

Glasglanz - Diamantglanz

max. Birefringence

0.059
Birefringence chart\! Phurcalite title=Birefringence chart Phurcalite

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

1.690

RI value β

1.730

RI value γ / ε

1.749

Ri mean

1.723

2V angle

Biaxial (-) 68°

Optical Data Luminescence

Color LW-UV (365nm)

  

gelblich grün

LW-UV Intensity

mittel

Color SW-UV (254nm)

  

gelblich grün

SW-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

orthorhombisch

Class (H-M)

mmm

Space Group number

61

Space Group

Pbca

Cell parameters a (Å)

17.426

Cell parameters b (Å)

16.062

Cell parameters c (Å)

13.592

Cell parameters a/b or c/a

1.085

Cell parameters c/b

0.846

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volumne (ų)

3804.352

X-Ray Powder Diffraction

8.05(100),
4.24(30),
4.00(30),
3.83(20),
3.39(50),
3.10(80),
3.09(80),
2.878(70)
XRD chart Phurcalite

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)

91 (5g)

Density (g/cm³)

4.22

4.324 ( ρ calc. Mineralienatlas )

Radioactivity

Phurcalit ist Uran haltig und daher radioaktiv!

Instability

+++ Säuren, +- H2O

(Co-)Type locality

(Co-)Type locality

Deutschland/Sachsen/Vogtlandkreis/Bergen/Streuberg (Schacht 254)

Preface

Author (Name, Year)

Deliens & Piret, 1978

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

Bulletin de Minéralogie 101 (1978), 356

Other languages

Spanish

Furcalita

German

Phurcalit

French

Phurcalite

English

Phurcalite

Russian

Фуркалит

Simplified Chinese

束磷钙铀矿

Alternative Name

German

Nisait

Spanish

Nisaita

English

Nisaite

CNMNC (IMA)-Number

IMA 1977-040

CNMNC symbol

Symbol

Phu

Locations with GPS information