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Canosioite

Pictures (2 Images total)

Canosioite
Views (File:
1463738384
): 1281
Canosioite
Valletta Mine, Vallone della Valletta, Canosio, Maira Valley, Cuneo Province, Piedmont, Italy; Field of View: 2.5 mm; Brown grains in Calcite. ID confirmed by Giuseppe Siccardi.
Copyright: Stephan Wolfsried; Contribution: Stefan
Collection: Stephan Wolfsried
Location: Italien/Piemont (Piemonte), Region/Cuneo, Provinz/Dora-Maira-Massiv/Valle Maira/Canosio/Vallone della Valletta/La Valletta Mine
Mineral: Canosioite
Image: 1463738384
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
Canosioite

Valletta Mine, Vallone della Valletta, Canosio, Maira Valley, Cuneo Province, Piedmont, Italy; Field of View: 2.5 mm; Brown grains in Calcite. ID confirmed by Giuseppe Siccardi.

Collection: Stephan Wolfsried
Copyright: Stephan Wolfsried
Contribution: Stefan 2016-05-20
Locality: La Valletta Mine / Vallone della Valletta / Canosio / Valle Maira / Dora-Maira-Massiv / Cuneo, Provinz / Piemont (Piemonte), Region / Italien
Canosioite
Views (File:
1463738510
): 751
Canosioite
Valletta Mine, Vallone della Valletta, Canosio, Maira Valley, Cuneo Province, Piedmont, Italy; Field of View: 2 mm; Red-brown Canosioite grains in Calcite. ID confirmed by Giuseppe Siccardi.
Copyright: Stephan Wolfsried; Contribution: Stefan
Collection: Stephan Wolfsried
Location: Italien/Piemont (Piemonte), Region/Cuneo, Provinz/Dora-Maira-Massiv/Valle Maira/Canosio/Vallone della Valletta/La Valletta Mine
Mineral: Canosioite
Image: 1463738510
License: Usage for Mineralienatlas project only
Canosioite

Valletta Mine, Vallone della Valletta, Canosio, Maira Valley, Cuneo Province, Piedmont, Italy; Field of View: 2 mm; Red-brown Canosioite grains in Calcite. ID confirmed by Giuseppe Siccardi.

Collection: Stephan Wolfsried
Copyright: Stephan Wolfsried
Contribution: Stefan 2016-05-20
Locality: La Valletta Mine / Vallone della Valletta / Canosio / Valle Maira / Dora-Maira-Massiv / Cuneo, Provinz / Piemont (Piemonte), Region / Italien

Collectors Summary

Color rötlich braun
Streak color blass gelb
Lustre Glasglanz
Crystal System monoklin, P21/m

Chemism

Chemical formula

Ba2Fe3+(AsO4)2(OH)

Empirical formula (analysis)

(Ba1.92Pb0.05Sr0.02Na0.01)Σ2.00(Fe3+0.52Mn3+0.29Al0.15Mg0.06)Σ1.02[(As0.64V0.36)Σ1.00O4]2[(OH0.92F0.01)(H2O)0.07]

Chemical composition

Arsen, Barium, Eisen, Sauerstoff, Wasserstoff

Unit weight: 605.4398502155 u; Number of atoms in the formula: 15.16

Info

Empirical formula:

(Ba1.92Pb0.05Sr0.02Na0.01)(Fe0.52Mn0.29Al0.15Mg0.06)[(As0.64V0.36)O4]2[(OH0.92F0.01)(H2O)0.07]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.18

1.06

6.99

1.0079470

1.0684238

Oxygen

O

23.97

9.07

59.83

15.9994300

145.1148301

Fluorine

F

0.03

0.01

0.07

18.9984033

0.1899840

Sodium

Na

0.04

0.01

0.07

22.9897702

0.2298977

Magnesium

Mg

0.24

0.06

0.40

24.3050600

1.4583036

Aluminium

Al

0.67

0.15

0.99

26.9815382

4.0472307

Vanadium

V

6.06

0.72

4.75

50.9415100

36.6778872

Manganese

Mn

2.63

0.29

1.91

54.9380499

15.9320345

Iron

Fe

4.80

0.52

3.43

55.8452000

29.0395040

Arsenic

As

15.84

1.28

8.44

74.9216020

95.8996506

Strontium

Sr

0.29

0.02

0.13

87.6210000

1.7524200

Barium

Ba

43.55

1.92

12.66

137.3277000

263.6691840

Lead

Pb

1.71

0.05

0.33

207.2100000

10.3605000

Strunz 9th edition incl. updates

8.BG.05

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
G: Mit mittelgroßen und großen [Kationen] (OH, etc.):RO4 = 0.5:1
05:Brackebuschit-Gruppe

Lapis Classification

VII/B.24-018

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
24: Mittelgroße und große Kationen: Mg-Cu-Zn und Ca-Na-K-Ba-Pb; Brackebuschit- Gruppe

IMA status

anerkannt - CNMNC Newsletter No. 26, August 2015, page 945

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Brackebuschite supergroup  ⇒ Brackebuschite group

Optical Properties

Color

rötlich braun

Streak color

blass gelb

Lustre

Glasglanz

2V angle

Biaxial (+) 84(2)° (gemessen)

Absorption

Z > Y > X

Pleochroism

X = bräunlich gelb, Y = braun, Z = rötlich braun

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

11

Space Group

P21/m

Cell parameters a (Å)

7.8642(4)

Cell parameters b (Å)

6.1083(3)

Cell parameters c (Å)

9.1670(5)

Cell parameters a/b or c/a

1.287

Cell parameters c/b

1.501

Cell parameters α

90°

Cell parameters β

112.874(6)º

Cell parameters γ

90°

Z

2

Volume (ų)

405.726

Crystal structure

Brackebuschit-Supergruppe; Struktur bestimmt, siehe Cámara, F., Bittarello, E., Ciriotti, M.E., Nestola, F., Radica, F., Massimi, F., Balestra, C. and Bracco, R - As-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: III. Canosioite, Ba2Fe3+(AsO4)2(OH), description and crystal structure. Mineralogical Magazine Jhrg. 81, Nr. 2 (2017) S. 305-317.

X-Ray Powder Diffraction

3.713(18), 3.304(100), 3.058(31), 3.047(59), 2.801(72), 2.337(24), 2.158(24), 1.921(18)

XRD chart Canosioite

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

Physical Properties

Density (g/cm³)

4.943 (berechnet)

4.956 ( ρ calc. Mineralienatlas )

Chemical Properties and Tests

IR-Spektrum beschrieben, siehe Cámara, F., Bittarello, E., Ciriotti, M.E., Nestola, F., Radica, F., Massimi, F., Balestra, C. and Bracco, R - As-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: III. Canosioite, Ba2Fe3+(AsO4)2(OH), description and crystal structure. Mineralogical Magazine Jhrg. 81, Nr. 2 (2017) S. 305-317.

(Co-)Type locality

(Co-)Type locality

Italien/Piemont (Piemonte), Region/Cuneo, Provinz/Dora-Maira-Massiv/Valle Maira/Canosio/Vallone della Valletta/La Valletta Mine

Type material

Mineralogische Sammlung des Museo Regionale di Scienze Naturali di Torino, Sezione di Mineralogia, Petrografia e Geologia, via Giovanni Giolitti 36,I-10123 Torino, Italien

Collection number of type material

M/15941

Paragenesis of type material

Aegirin, Baryt, Calcit, Hämatit, Bronze Mn-haltigem Muskovit, unidentifizierte Mn-Oxide und unidentifizierte Arsenate

Preface

Name from

der kleinen Ortschaft Canosio, auf deren Gebiet die Typlokalität liegt.

Author (Name, Year)

Fernando Cámara, Erica Bittarello, Marco E. Ciriotti, Fabrizio Nestola, Francesco Radica, Federico Massimi, Corrado Balestra und Roberto Bracco (2017)

References

Cámara, F., Bittarello, E., Ciriotti, M.E., Nestola, F., Radica, F., Massimi, F., Balestra, C. and Bracco, R. (2015) Canosioite, IMA 2015-030. CNMNC Newsletter No. 26, August 2015, page 945; Mineralogical Magazine, 79, 941 - 947.

Cámara, F., Bittarello, E., Ciriotti, M.E., Nestola, F., Radica, F., Massimi, F., Balestra, C. and Bracco, R - As-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: III. Canosioite, Ba2Fe3+(AsO4)2(OH), description and crystal structure. Mineralogical Magazine Jhrg. 81, Nr. 2 (2017) S. 305-317.

IMA group assignments

Other languages

German

Canosioit

English

Canosioite

CNMNC (IMA)-Number

IMA 2015-030

CNMNC symbol

Symbol

Cso

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 8C3Wu-JA10yBKSJNoq9znw
GUID (Global unique identifier) BBD62DF0-40E2-4CD7-8129-224DA2AF739F
Database ID 7982