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Alcaparrosaite

Pictures (2 Images total)

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
tafeliger gelber Alcaparrosait von der Typlokalität mit Coquimbit
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tafeliger gelber Alcaparrosait von der Typlokalität mit Coquimbit (SNr: A043139)

Chile/Antofagasta, Region (II. Region)/Antofagasta, Provinz/Calama/Cerritos Bayos/Alcaparrosa Mine, BB = 1,7 mm

Collection: Lithothek der Münchener Micromounter
Copyright: husi
Contribution: Münchener Micromounter 2020-11-30
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

Strunz 9th edi­tion incl. updates

7.A.

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
A: Sulfate (Selenate, etc.) ohne weitere Anionen, ohne H2O

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

CNMNC (IMA)-Number

IMA 2011-024

CNMNC symbol

Symbol

Apr

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
Webmineral - search for:Alcaparrosaite
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
Athena - search for: Alcaparrosaite

Russian pages

Webmineral.ru - search for: Алькапароссаит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Alcaparrosait
Crystal-Treasure.com - search for: Alcaparrosait
Bosse - search for: Alcaparrosait

Locations with GPS information