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Taniajacoite (Taniajacoit)

Pictures (1 Images total)

Taniajacoit mit Sughilit
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Taniajacoit mit Sughilit
braune, stKristalle von Taniajacoit neben violletem Sughilit, NChwaning III Mine, Kuruman, Kalahari, Northern Cape, Südafrika; BB < 1 mm
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Kuruman/N'Chwaning Mines (NChwaning Mines)/N'Chwaning III Mine
Mineral: Taniajacoite
Image: 1590590579
License: Usage for Mineralienatlas project only
Taniajacoit mit Sughilit

braune, stKristalle von Taniajacoit neben violletem Sughilit, NChwaning III Mine, Kuruman, Kalahari, Northern Cape, Südafrika; BB < 1 mm
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-05-27
Locality: N'Chwaning III Mine / N'Chwaning Mines (NChwaning Mines) / Kuruman / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika

Collectors Summary

Color braun
Hardness (Mohs) 5-5,5
Crystal System triklin, C1

Chemism

Chemical formula

SrCaMn3+2Si4O11(OH)4·2H2O

Empirical formula (analysis)

Sr(Ca0.81Sr0.19)Σ1.00(Mn3+1.90Fe3+0.15Al0.01)Σ2.06Si3.96O11(OH)4·2H2O

Additional chem. information

Isostrukturell mit Ruizit

Chemical composition

Calcium, Mangan, Silicium, Strontium, Sauerstoff, Wasserstoff

Unit weight: 641.033968992 u; Number of atoms in the formula: 33.02

Info

Empirical formula:

Sr(Ca0.81Sr0.19)(Mn1.90Fe0.15Al0.01)Si3.96O11(OH)4·2H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.26

8

24.23

1.0079470

8.0635760
Oxygen

O

42.43

17

51.48

15.9994300

271.9903100
Aluminium

Al

0.04

0.01

0.03

26.9815382

0.2698154
Silicon

Si

17.35

3.96

11.99

28.0855300

111.2186988
Calcium

Ca

5.06

0.81

2.45

40.0784000

32.4635040
Manganese

Mn

16.28

1.9

5.75

54.9380499

104.3822948
Iron

Fe

1.31

0.15

0.45

55.8452000

8.3767800
Strontium

Sr

16.27

1.19

3.60

87.6210000

104.2689900

Strunz 9th edition incl. updates

9.BJ.35

9: Silikate (Germanate)
B: Gruppensilikate (Sorosilikate)
J: Gruppen(Soro)-Silikate mit Si3O10, Si4O11, etc. Anionen; Kationen in oktahedraler [6] und/oder größerer Koordination
35:Ruizit-Gruppe

Lapis Classification

VIII/C.35-012

VIII: SILIKATE
C: Gruppensilikate
35: Sonstige Gruppensilikate

IMA status

anerkannt - CNMNC Newsletter 25, Juni 2015

Mineral status

anerkanntes Mineral

Optical Properties

Color

braun

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

1

Space Group

C1

Cell parameters a (Å)

9.1365(6)

Cell parameters b (Å)

6.2567(4)

Cell parameters c (Å)

12.0045(7)

Cell parameters a/b or c/a

1.46

Cell parameters c/b

1.919

Cell parameters α

90.019(4)°

Cell parameters β

91.641(4)°

Cell parameters γ

89.899(4)°

Volume (ų)

685.947

Crystal structure

Isostrukturell mit Ruizit; Struktur bestimmt

X-Ray Powder Diffraction

4.224(30), 3.131(88), 2.980(63), 2.902(33), 2.771(100), 2.541(31), 2.534(64), 2.367(43)
XRD chart Taniajacoite

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

Physical Properties

Hardness (Mohs)

5-5,5

Density (g/cm³)

3.05(2) gem. 3.09 ber.

Chemical Properties and Tests

Das Mineral wurde mit Single-crystal X-ray diffraction und Chemischer Analyse bestätigt

(Co-)Type locality

(Co-)Type locality

Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Kuruman/N'Chwaning Mines (NChwaning Mines)/N'Chwaning III Mine

Type material

Mineral Museum of the University of Arizona, Tucson, AZ, USA

RRUFF Project

Collection number of type material

20009 (USA); R140945 (RRUFF)

Paragenesis of type material

Sugilit, Lipuit, Aegirin, Pektolith, Richterit, Kalium-Ferri-Leakeit

Preface

Name from

Tania and Jaco van Nieuwenhuizen, die das Mineral entdeckt hatten

Author (Name, Year)

Hexiong Yang; Xiangping Gu; Bruce Cairncross; Robert T. Downs; Stanley H. Evans (2021)

References

Yang, H., Gu, X., Downs, R.T. and Xie, X. (2015) Taniajacoite, IMA 2014-107. CNMNC Newsletter No. 25, June 2015, page 531; Mineralogical Magazine, 79, 529-535.

Hexiong Yang; Xiangping Gu; Bruce Cairncross; Robert T. Downs; Stanley H. Evans: Taniajacoite and Strontioruizite, Two New Minerals Isostructural with Ruizite from the N'Chwaning III Mine, Kalahari Manganese Field, South Africa. The Canadian Mineralogist Vol. 59, Nr. 2 (2021) S. 431-444.

Celestian, Aaron J.: New Mineral Names: Hydrous Minerals. American Mineralogist Volume 107 (2022) S.1656–1658.

http://rruff.info/taniajacoite/display=default/

Other languages

German

Taniajacoit

English

Taniajacoite

CNMNC (IMA)-Number

IMA 2014-107

RRUFF ID

R140945

CNMNC symbol

Symbol

Tjc

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 2Zo-AK01zkmw1gwbDpuoHA
GUID (Global unique identifier) 003E9AD9-35AD-49CE-B0D6-0C1B0E9BA81C
Database ID 7897