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Alcaparrosaite

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Alcaparrosait
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Alcaparrosait

Mina Alcaparrosa, Cerritos Bayos, Chile. BB 1,0mm

Collection: Mabu
Copyright: Mabu
Contribution: Mabu 2012-09-09
Locality: Alcaparrosa Mine / Cerritos Bayos / Calama / Antofagasta, Provinz / Antofagasta, Region (II. Region) / Chile

Collectors Summary

Color gelb, honiggelb, blassgelb
Streak color weiß
Hardness (Mohs) 4
Crystal System monoklin, C2/c

Chemism

Chemical formula

K3Ti4+Fe3+(SO4)4O(H2O)2

Chemical composition

Eisen, Titan, Kalium, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 657.290188 u; Number of atoms in the formula: 32

Info

Empirical formula:

K3TiFe(SO4)4O(H2O)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.61

4

12.50

1.0079470

4.0317880

Oxygen

O

46.25

19

59.38

15.9994300

303.9891700

Sulfur

S

19.51

4

12.50

32.0655000

128.2620000

Potassium

K

17.85

3

9.38

39.0983100

117.2949300

Titanium

Ti

7.28

1

3.13

47.8671000

47.8671000

Iron

Fe

8.50

1

3.13

55.8452000

55.8452000

Lapis Classification

VI/D.15-025

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
15: Mittelgroße und sehr große Kationen

Classification by Hölzel

7.DF.200

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
F: Minasragrite-Group

IMA status

anerkannt - CNMNC - New minerals and nomenclature modifications approved in Jun. 2011

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelb, honiggelb, blassgelb

Streak color

weiß

Diaphaneity (Transparency)

transparent

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

7.559

Cell parameters b (Å)

16.792

Cell parameters c (Å)

12.178

Cell parameters a/b or c/a

0.450

Cell parameters c/b

0.725

Cell parameters α

90°

Cell parameters β

94.8

Cell parameters γ

90°

Z

4

Volumne (ų)

1540.341

Kristall structure

Neuer Strukturtyp, Struktur bestimmt

X-Ray Powder Diffraction

6.907(41), 3.628(34), 3.320(32), 3.096(100), 3.000(40), 2.704(38), 1.928(30), 1.841(31)

XRD chart Alcaparrosaite

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)

4

Density (g/cm³)

2.831

2.834 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Chile/Antofagasta, Region (II. Region)/Antofagasta, Provinz/Calama/Cerritos Bayos/Alcaparrosa Mine

Type material

Natural History Museum of Los Angeles County, Los Angeles, California, USA

Collection number of type material

63519, 63520 und 63521

Preface

Name from

Name nach der Typlokalität "Alcaparrosa" Mine

Author (Name, Year)

Anthony R. Kampf, Stuart J. Mills, Robert M. Housley and Maurizio Dini (2011)

References

Kampf, A.R., Mills, S.J., Housley, R.M. and Dini, M. (2011) Alcaparrosaite, IMA 2011-024. CNMNC Newsletter No. 10, October 2011, page 2553;

Kampf, A.R.; Mills, S.J.; Housley, R.M.; Williams, P.A.; Dini, M. - Alcaparrosaite, K3Ti4+Fe3+(SO4)4O(H2O)2, a new hydrophobic Ti4+ sulfate from Alcaparrosa, Chile. Mineralogical Magazine 76 (2012), 851-861

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Sideronatrite

Na2Fe3+(SO4)2(OH)·3H2O

orthorhombisch : mm2, mmm : Pnn2, Pnnm

VI/D.15-010

Metasideronatrite

Na2Fe3+(SO4)2(OH)·H2O

orthorhombisch : 222 : Pbnm

VI/D.15-020

Alcaparrosaite

K3Ti4+Fe3+(SO4)4O(H2O)2

monoklin : 2/m : C2/c

VI/D.15-025

Clairite

(NH4)2(Fe3+,Mn3+)3(SO4)4(OH)3·3H2O

VI/D.15-030

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Alcaparrosaite

K3Ti4+Fe3+(SO4)4O(H2O)2

monoklin : 2/m : C2/c

7.DF.200

Other languages

German

Alcaparrosait

English

Alcaparrosaite

Russian

Алькапароссаит

IMA Number

IMA 2011-024

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

German pages

DeWikiPedia - search for: Alcaparrosait
Google-Bilder-Suche - search for: Alcaparrosait
Mineralogisch-Petrographisches-Institut Hamburg - search for: Alcaparrosait

English pages

Mindat - search for: Alcaparrosaite
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Handbook-of-Mineralogy - search for: Alcaparrosaite
RRUFF - Raman, XRD and other mineral data - search for: Alcaparrosaite
RRUFF - References and PDF downloads - search for: Alcaparrosaite
American-Mineralogist-Crystal-Structure-Database - search for: Alcaparrosaite
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Russian pages

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Mineral Dealer

German pages

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Locations with GPS information




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