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Camaronesite

Pictures (1 Images total)

Camaronesite
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Camaronesite
very little group of light pink crystals of Camaronesite IMA 2012-094; dimension group mm. 0,31; Photo Germano Fretti; Collection Luigi Chiappino; Locality: Cuya NE9 sulfate occurrence, Cuya, Los Camarones, Arica Province, Arica and Parinacota Region, Chile; Fov:;
Copyright: Luigi Chiappino; Contribution: Stefan
Location: Chile/Arica y Parinacota, Region (XV. Region)/Arica, Provinz/Los Camarones/Cuya
Mineral: Camaronesite
Image: 1493458733
License: Usage for Mineralienatlas project only
Camaronesite

very little group of light pink crystals of Camaronesite IMA 2012-094; dimension group mm. 0,31; Photo Germano Fretti; Collection Luigi Chiappino; Locality: Cuya NE9 sulfate occurrence, Cuya, Los C...

Copyright: Luigi Chiappino
Contribution: Stefan 2017-04-29
Locality: Cuya / Los Camarones / Arica, Provinz / Arica y Parinacota, Region (XV. Region) / Chile

Collectors Summary

Color lavendelfarben, rotblau
Lustre Glasglanz
Crystal System trigonal, R32
Morphology Lavendelfarbe Kristalle bis zu mehreren Millimeter formen dichte Verwachsungen. Es treten selten Kristalle als drusige Aggregate von Täüfelchen bis zu 0,5 mm Durchmesser und 0,02 mm Dicke auf. Die Täfelchen werden auf {001} abgeflacht und zeigen die Formen {001}, {104}, {015} und {018}.

Chemism

Chemical formula

Fe3+2(PO3OH)2(SO4)(H2O)4·1-2H2O

Empirical formula (analysis)

Fe1.94(PO3OH)2(S0.96O4)(H2O)4·1.46H2O

Chemical composition

Eisen, Phosphor, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 493.44281344 u; Number of atoms in the formula: 35.28

Info

Empirical formula:

Fe1.94(PO3OH)2(S0.96O4)(H2O)4·1.46H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.64

12.92

36.62

1.0079470

13.0226752

Oxygen

O

56.61

17.46

49.49

15.9994300

279.3500478

Phosphorus

P

12.55

2

5.67

30.9737612

61.9475224

Sulfur

S

6.24

0.96

2.72

32.0655000

30.7828800

Iron

Fe

21.96

1.94

5.50

55.8452000

108.3396880

Analysis wt%

Fe2O3 : 31.84,
P2O5 : 29.22,
SO3 : 15.74,
H2O : 23.94,
Total : 100.74 wt.%

Strunz 9th edition incl. updates

8.CH.

8: Phosphate, Arsenate, Vanadate
C: Phosphate ohne weitere Anionen, mit H2O
H: Mit großen und mittelgroßen Kationen, RO4:H2O < 1:1

Lapis Classification

VII/C.21-003

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
C: Wasserhaltige Phosphate, ohne fremde Anionen
21: Mittelgroße und große Kationen: Fe-Mn-Zn-Mg und Ca-(NH4) 1+

IMA status

anerkannt - CNMNC Newsletter No. 16, August 2013

Mineral status

anerkanntes Mineral

Optical Properties

Color

lavendelfarben, rotblau

Diaphaneity (Transparency)

transparent

Lustre

Glasglanz

max. Birefringence

0.009

Birefringence chart\! Camaronesite title=Birefringence chart Camaronesite

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

ω = 1.612(1)

RI value γ / ε

ε = 1.621(1)

2V angle

Uniaxial (+)

Pleochroism

O (blasser Lavendel) > E (farblos)

Crystallography

Crystal System

trigonal

Class (H-M)

32

Space Group number

155

Space Group

R32

Cell parameters a (Å)

9.0833

Cell parameters b (Å)

-

Cell parameters c (Å)

42.944

Cell parameters a/b or c/a

4.728

Cell parameters c/b

-

Z

9

Volume (ų)

3068.46

Crystal structure

Neuer Strukturtyp, Struktur bestimmt

X-Ray Powder Diffraction

7.74(45), 7.415(100), 4.545(72), 4.426(26), 3.862(32), 3.298(93), 3.179(25), 2.818(25)

XRD chart Camaronesite

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

Morphology

Lavendelfarbe Kristalle bis zu mehreren Millimeter formen dichte Verwachsungen. Es treten selten Kristalle als drusige Aggregate von Täüfelchen bis zu 0,5 mm Durchmesser und 0,02 mm Dicke auf. Die Täfelchen werden auf {001} abgeflacht und zeigen die Formen {001}, {104}, {015} und {018}.

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.43(1) (gemessen, 2.383 (berechnet)

2.403 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Chile/Arica y Parinacota, Region (XV. Region)/Arica, Provinz/Los Camarones/Cuya

Type material

Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA

Collection number of type material

64023, 64024, 64025, 64026 und 64027

Paragenesis of type material

Anhydrit, Botryogen, Chalkanthit, Copiapit, Halotrichit, Hexahydrit, Hydroniumjarosit, Pyrit, Römerit, Rozenit und Szomolnokit

Preface

Name from

der Typlokalität: Los Camarones/Cuya

Author (Name, Year)

Anthony R. Kampf, Stuart J. Mills, Barbara Nash, Robert M. Housley, George R. Rossman and Maurizio Dini (2012)

References

Kampf, A.R., Mills, S.J.,Nash, B., Housley, R.M., Rossman, G.R. and Dini, M. (2013) Camaronesite, IMA 2012-094. CNMNC Newsletter No. 16, August 2013, page 2698; Mineralogical Magazine, 77, 2695-2709.

A. R. Kampf, S. J. Mills, B. P. Nash, R. M. Housley, G. R. Rossman, M. Dini - Camaronesite, [Fe3+(H2O)2(PO3OH)]2(SO4)·1–2H2O, a new phosphate-sulfate from the Camarones Valley, Chile, structurally related to taranakite - Mineralogical Magazine 77, 453-465.

Other languages

German

Camaronesit

English

Camaronesite

CNMNC (IMA)-Number

IMA 2012-094

CNMNC symbol

Symbol

Cmr

Locations with GPS information

IDs

GUSID (Global unique identifier short form) _HhTDW5i606Bc1ik0R6ymA
GUID (Global unique identifier) 0D5378FC-626E-4EEB-8173-58A4D11EB298
Database ID 7604