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Hydroxycalcioroméite

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Hydroxycalcioroméit
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Hydroxycalcioroméit
Langtafelige farblose Kristalle, BB = 2,5 mm, Fundort: Terez, Hegy, Matraszentimre, Gyöngyös, Heves Kombinat, Ungarn.
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A030001, Donator: Manfred Seitz
Location: Ungarn/Heves, Komitat/Gyöngyös, Kreis/Matraszentimre/Terez Hegy
Mineral: Hydroxycalcioroméite
Image: 1350661269
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
Hydroxycalcioroméit (SNr: A030001)

Langtafelige farblose Kristalle, BB = 2,5 mm, Fundort: Terez, Hegy, Matraszentimre, Gyöngyös, Heves Kombinat, Ungarn.
Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2012-10-19
Locality: Terez Hegy / Matraszentimre / Gyöngyös, Kreis / Heves, Komitat / Ungarn

You find additional specimen at the Geolitho Museum

Collectors Summary

Color harzbraun
Streak color gelblichbraun
Hardness (Mohs) 5.5
Crystal System kubisch, Fd3m

Additional information / Summary

The Canadian Mineralogist Vol. 48, pp. 673-698 (2010) Lewisit = Hydroxycalcioroméit; Typmaterial ist das Typmatrial von Hydroxycalcioroméit.

Chemism

Chemical formula

(Ca,Sb3+)2(Sb5+,Ti4+)2O6(OH)

Chemical composition

Antimon, Calcium, Titan, Sauerstoff, Wasserstoff

Unit weight: 440.575307 u; Number of atoms in the formula: 12

Info

Empirical formula:

(Ca0.75Sb0.25)2(Sb0.75Ti0.25)2O6(OH)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.23

1

8.33

1.0079470

1.0079470
Oxygen

O

25.42

7

58.33

15.9994300

111.9960100
Calcium

Ca

13.65

1.5

12.50

40.0784000

60.1176000
Titanium

Ti

5.43

0.5

4.17

47.8671000

23.9335500
Antimony

Sb

55.27

2

16.67

121.7601000

243.5202000

Strunz 9th edition incl. updates

4.DH.20

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
H: Mit großen (± mittelgroßen) [Kationen]; Lagen kantenverknüpfter Oktaeder
20:Stibiconit-Gruppe

Lapis Classification

IV/C.16-040

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
16: Pyrochlor-Gruppe; ROMEIT-Untergruppe [Sb ± Ti]

Classification by Hölzel

4.CK.110

4: OXIDES
C: R2O3 Sesquioxides
K: Romeite-Group, Sb-dominant on the B-site

IMA status

diskreditiert 11/2006 (Antrag 06–C); anerkannt - Neudefinition als Hydroxycalcioromèite - The Canadian Mineralogist Vol. 48, pp. 673-698 (2010)

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Pyrochlore supergroup  ⇒ Roméite group

Optical Properties

Color

harzbraun

Streak color

gelblichbraun

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

X-Ray Powder Diffraction

2.94(100),
1.813(100),
1.548(100),
1.179(50),
1.150(50),
1.050(50),
0.989(50),
0.870(50)
XRD chart Hydroxycalcioroméite

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)

5.5

(Co-)Type locality

(Co-)Type locality

Brasilien/Südosten (Região Sudeste)/Minas Gerais/Ouro Preto

Preface

Author (Name, Year)

Hussak & Prior, 1895

Detailed description

Lewisit = Ti-haltiger Romeit lt. Am. Mineral. 83 (1998), 403 and 84 (1999), 1198; draft pyrochlore report;

The Canadian Mineralogist Vol. 48, pp. 673-698 (2010) Lewisit = Hydroxycalcioroméit; Typmaterial ist das Typmatrial von Hydroxycalcioroméit.

References

American Mineralogist 83 (1998), 403 and 84 (1999), 1198; draft pyrochlore report

The Canadian Mineralogist Vol. 44, pp. 1557-1560 (2006)

The Pyrochlore Supergroup of Minerals: Nomenclature; The Canadian Mineralogist Vol. 48, pp. 673-698 (2010)

IMA group assignments

Other languages

German

Hydroxycalcioroméit

English

Hydroxycalcioroméite

old name

German

Lewisit

Spanish

Lewisita

French

Lewisite

English

Lewisite

Russian

Льюисит

CNMNC symbol

Symbol

Hcr

Locations with GPS information

IDs

GUSID (Global unique identifier short form) xWqayK1eWk6aL3Z5asW4AQ
GUID (Global unique identifier) C89A6AC5-5EAD-4E5A-9A2F-76796AC5B801
Database ID 2201