'._('einklappen').'
 

Achalaite

Collectors Summary

Crystal System monoklin, C2/c

Chemism

Chemical formula

(Fe2+,Mn)(Ti,Fe3+,Ta)(Nb,Ta)2O8

Chemical composition

Eisen, Mangan, Niob, Tantal, Titan, Sauerstoff

Unit weight: 477.015991475 u; Number of atoms in the formula: 12

Info

Empirical formula:

(Fe0.75Mn0.25)(Ti0.6Fe0.3Ta0.1)(Nb0.75Ta0.25)2O8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

26.83

8

66.67

15.9994300

127.9954400

Titanium

Ti

6.02

0.6

5.00

47.8671000

28.7202600

Manganese

Mn

2.88

0.25

2.08

54.9380499

13.7345125

Iron

Fe

12.29

1.05

8.75

55.8452000

58.6374600

Niobium

Nb

29.21

1.5

12.50

92.9063820

139.3595730

Tantalum

Ta

22.76

0.6

5.00

180.9479100

108.5687460

IMA status

anerkannt - CNMNC Newsletter No. 19, February 2014

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Wodginite group

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

C2/c

Cell parameters a (Å)

9.422(4)

Cell parameters b (Å)

11.427(3)

Cell parameters c (Å)

5.120

Cell parameters a/b or c/a

0.825

Cell parameters c/b

0.448

Cell parameters α

90°

Cell parameters β

90.12(4)º

Cell parameters γ

90°

Volumne (ų)

551.245

X-Ray Powder Diffraction

3.630(40), 2.964(100), 2.564(35), 2.493(40), 1.766(35), 1.735(40), 1.711(50), 1.453(40)

XRD chart Achalaite

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

(Co-)Type locality

(Co-)Type locality

Argentinien/Córdoba, Provinz/Cañada del Puerto/Cerro Los Mogotes

Type material

Museo de Mineralogiá y Geologiá ‘‘Dr. Alfred Stelzner’’, Universidad Nacional de Córdoba, Córdoba, Argentinien

Collection number of type material

3279

Preface

Author (Name, Year)

Miguel á ngel Galliski, Mariá Florencia Márquez-Zavaliá, Petr Černý, Rau´l Lira, Andrew C. Roberts und Heinz-Jürgen Bernhardt (2013)

References

Galliski, M.á ., Márquez-Zavaliá, M.F., Černý, P., Lira, R., Roberts, A.C. and Bernhardt, H.-J. (2014) Achalaite, IMA 2013-103. CNMNC Newsletter No. 19, February 2014, page 166; Mineralogical Magazine, 78, 165-170.

IMA group assignments

Other languages

German

Achalait

English

Achalaite

Russian

Ачалаит

IMA Number

IMA 2013-103

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

German pages

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

English pages

Mindat - search for: Achalaite
Webmineral - search for: Achalaite
Handbook-of-Mineralogy - search for: Achalaite
RRUFF Database-of-Raman-spectroscopy - search for: Achalaite
American-Mineralogist-Crystal-Structure-Database - search for: Achalaite
Athena - search for: Achalaite

Russian pages

Webmineral.ru - search for: Ачалаит

Mineral Dealer

German pages

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



Notice: "Undefined variable: ub"