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Kamarizaite (Kamarizait)

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Kamarizait
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Kamarizait
Bildbreite: 15 mm; Fundort: Kamariza, Laurion, Attika, Griechenland
Copyright: Fritz Schreiber; Contribution: Hg
Location: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Agios Konstantinos (Kamariza)
Mineral: Kamarizaite
Image: 1266057063
Rating: 5.5 (votes: 2)
License: Usage for Mineralienatlas project only
Kamarizait

Bildbreite: 15 mm; Fundort: Kamariza, Laurion, Attika, Griechenland
Copyright: Fritz Schreiber
Contribution: Hg 2010-02-13
Locality: Agios Konstantinos (Kamariza) / Lavrion (Laurion), Bergbaudistrikt / Lavreotiki / East Attica / Attika (Attikí, Attica) / Griechenland

Collectors Summary

Color gelb, beige
Streak color gelb
Hardness (Mohs) 3
Cleavages keine beobachtet
Crystal System triklin, P1

Chemism

Chemical formula

Fe3+3(AsO4)2(OH)3·3H2O

Empirical formula (analysis)

Ca0.03Fe3+2.86(AsO4)1.90(SO4)0.10(OH)2.74·3.27H2O

Additional chem. information

Verwandt mit Tinticit

Chemical composition

Arsen, Eisen, Sauerstoff, Wasserstoff

Unit weight: 539.98298026 u; Number of atoms in the formula: 28.18

Info

Empirical formula:

Ca0.03Fe2.86(AsO4)1.90(SO4)0.10(OH)2.74·3.27H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.73

9.28

32.93

1.0079470

9.3537482
Oxygen

O

41.51

14.01

49.72

15.9994300

224.1520143
Sulfur

S

0.59

0.1

0.35

32.0655000

3.2065500
Calcium

Ca

0.22

0.03

0.11

40.0784000

1.2023520
Iron

Fe

29.58

2.86

10.15

55.8452000

159.7172720
Arsenic

As

26.36

1.9

6.74

74.9216020

142.3510438

Analysis wt%

SO3 : 1.49, As2O5 : 39.89, Fe2O3 : 41.78, CaO : 0.35, H2O : 15.30 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 2009)

Strunz 9th edition incl. updates

8.CC.

8: Phosphate, Arsenate, Vanadate
C: Phosphate ohne weitere Anionen, mit H2O
C: Mit ausschließlich mittelgroßen Kationen, RO4:H2O = 1:1.5

Lapis Classification

VII/D.11-055

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
D: Wasserhaltige Phosphate, mit fremden Anionen
11: Mittelgroße Kationen: Cu-Zn-Mn-Al-Fe

Classification by Hölzel

8.DC.150

8: PHOSPHATES ARSENATES VANADATES
D: Phosphates (+Anions +Water)
C: Phosphates, Valency for mediumsized Cations: 3
1: OH/XO4< 1.5 Vashegyite-Group

Dana 8th edition

42.12.05

42: Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
12: Hydrated Phosphates, etc., Containing Hydroxyl or Halogen with miscellaneous formulae

IMA status

anerkannt - Juli 2008

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelb, beige

Streak color

gelb

RI value α / ω / n

n min = 1.825, n max = 1.835

2V angle

Biaxial (+) nd

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell parameters a (Å)

7.671(2)

Cell parameters b (Å)

8.040(2)

Cell parameters c (Å)

10.180(2)

Cell parameters a/b or c/a

0.954

Cell parameters c/b

1.266

Cell parameters α

68.31(3)°

Cell parameters β

75.35(3)°

Cell parameters γ

63.52(3)°

Z

2

Volumne (ų)

519.253

X-Ray Powder Diffraction

6.61(37), 5.85(52), 3.947(100), 3.396(37), 3.332(60), 3.245(34), 3.085(58), 3.036(51)
XRD chart Kamarizaite

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

Physical Properties

Hardness (Mohs)

3

VHN (Hardness Vickers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.16 (gemessen) 3.12 (berechnet)

3.453 ( ρ calc. Mineralienatlas )

Cleavages

keine beobachtet

(Co-)Type locality

(Co-)Type locality

Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Bergbaudistrikt/Agios Konstantinos (Kamariza)

Preface

Author (Name, Year)

Nikita V. Chukanov, 2008

References

Neue Mineralien - IMA WEB Seite Juli 2008

N. V. Chukanov, I. V. Pekov, S. Möckel, A. A. Mukhanova, D. I. Belakovsky, L. A. Levitskaya, G. K. Bekenova - Kamarizaite, Fe 3 3+ (AsO4 )2 (OH)3 · 3H2 O, a new mineral species, arsenate analogue of tinticite - Geology of Ore Deposits December 2010, Volume 52, Issue 7, pp 599-605 [Dichte]

U. Kolitsch, C. L. Lengauer and G. Giester - Crystal structures and isotypism of the iron arsenate kamarizaite and the iron phosphate tinticite. 92nd Annual Meeting of the DMG, Jena, Germany, September 21-24 (2014); Abstrakt in Programme, 257.

Uwe Kolitsch; Chirstian L. Lengauer; Gerald Giester - Crystal structures and isotypism of the iron(III) arsenate kamarizaite and the iron(III) phosphate tinticite - European Journal of Mineralogy (Appeared or available online: 13. August 2015) [Kristalldaten, Z = 2 Auskunft Uwe Kolitsch]

Other languages

German

Kamarizait

Spanish

Kamarizaita

English

Kamarizaite

Alternative Name

Kamarezaite

CNMNC (IMA)-Number

IMA 2008-017

CNMNC symbol

Symbol

Kmr

Locations with GPS information