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Trabzonite (Trabzonit)

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Trabzonit
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Trabzonit
weiße Massen von Trabzonit, Güneyce-Ikizdere, Rize, Schwarzmeerregion, Türkei; BB < 1 mm
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Türkei/Schwarzmeerregion/Rize, Provinz/Güneyce-Ikizdere
Mineral: Trabzonite
Image: 1579898222
License: Usage for Mineralienatlas project only
Trabzonit

weiße Massen von Trabzonit, Güneyce-Ikizdere, Rize, Schwarzmeerregion, Türkei; BB < 1 mm
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-01-24
Locality: Güneyce-Ikizdere / Rize, Provinz / Schwarzmeerregion / Türkei

Collectors Summary

Color farblos
Streak color weiß
Lustre Glasglanz
Crystal System orthorhombisch, Ama2
Morphology unregelmäßig geformte Körnchen, die eine Größe zwischen 0,1 und 0,2mm aufweisen

Chemism

Chemical formula

Ca4[Si3O9(OH)]OH

Additional chem. information

Formel geändert gegenüber der Erstbeschreibung nach der Strukturaufklärung, siehe T. Armbruster, B. Lazic, I. O. Galuskina, E. V. Galuskin, E. Gnos, K. M. Marzec, V. M. Gazeev, Andrew Christy: Trabzonite, Ca4[Si3O9(OH)]OH: crystal structure, revised formula, new occurrence and relation to killalaite. Mineral Mag Vol. 76, Nr. 3 (2012) S. 455-472.

Chemical composition

Calcium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 422.579814 u; Number of atoms in the formula: 20

Info

Empirical formula:

Ca4[Si3O9(OH)]OH

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.48

2

10.00

1.0079470

2.0158940
Oxygen

O

41.65

11

55.00

15.9994300

175.9937300
Silicon

Si

19.94

3

15.00

28.0855300

84.2565900
Calcium

Ca

37.94

4

20.00

40.0784000

160.3136000

Analysis wt%

CaO : 50.20, SiO2 : 40.38, H2O : 7.00 (Ref: BGS Turkey,87)

Strunz 9th edition incl. updates

9.BJ.15

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

Lapis Classification

VIII/F.18-095

VIII: SILIKATE
F: Ketten- und Bandsilikate
18: Dreierketten [Si3O9] 6-

Classification by Hölzel

9.BP.140

9: SILICATES
B: Sorosilicates
P: Si3O10-Group

Dana 8th edition

57.01.03.01

57: Sorosilicates Sorosilicate Insular Si3O10 and Larger Noncyclic Groups
01: Sorosilicates Sorosilicate Insular Si3O10 and Larger Noncyclic Groups with [Si3O10] groups

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

Lustre

Glasglanz

max. Birefringence

0.008
Birefringence chart\! Trabzonite title=Birefringence chart Trabzonite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.632

RI value β

1.634

RI value γ / ε

1.640

Ri mean

1.635

2V angle

Biaxial (+) 55°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

40

Space Group

Ama2

Cell parameters a (Å)

20.5805(17)

Cell parameters b (Å)

10.3240(8)

Cell parameters c (Å)

9.1053(8)

Cell parameters a/b or c/a

1.993

Cell parameters c/b

0.882

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volume (ų)

1934.631

Crystal structure

T. Armbruster, B. Lazic, I. O. Galuskina, E. V. Galuskin, E. Gnos, K. M. Marzec, V. M. Gazeev, Andrew Christy: Trabzonite, Ca4[Si3O9(OH)]OH: crystal structure, revised formula, new occurrence and relation to killalaite. Mineral Mag Vol. 76, Nr. 3 (2012) S. 455-472.

X-Ray Powder Diffraction

5.71(30),
3.442(60),
3.062(100),
2.912(30),
2.851(50),
2.635(50),
2.585(90),
2.064(20)
XRD chart Trabzonite

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

Morphology

unregelmäßig geformte Körnchen, die eine Größe zwischen 0,1 und 0,2mm aufweisen

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.9 (gemessen) 2.79 ber.

2.902 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Türkei/Schwarzmeerregion/Rize, Provinz/Güneyce-Ikizdere

Preface

Associations

Spurrit, Rustumit, Calcit, Vesuvianit, Hillebrandit, Defernit, Killalait, Granat, Perowskit, Molybdänit

Name from

Typlokalität

Author (Name, Year)

Sarp & Burri (1986, 1987)

References

Sarp, H., Burri, G.: Trabzonite Ca4Si3O10·2H2O a new hydrated silicate. Schweizerische Mineralogische Petrographische Mitteilungen Vol. 66 (1986) S. 453.

Sarp, H. and Burri, G.: Yeni bir mineral, trabzonite Ca4Si3O10·2H2O. Bulletin of the Geological Society of Turkey Vol. 30 (1987) S. 57-60. [in Türkischer Sprache]

T. Armbruster, B. Lazic, I. O. Galuskina, E. V. Galuskin, E. Gnos, K. M. Marzec, V. M. Gazeev, Andrew Christy: Trabzonite, Ca4[Si3O9(OH)]OH: crystal structure, revised formula, new occurrence and relation to killalaite. Mineral Mag Vol. 76, Nr. 3 (2012) S. 455-472.

Other languages

German

Trabzonit

Spanish

Trabzonita

French

Trabzonite

English

Trabzonite

CNMNC (IMA)-Number

IMA 1983-071a

CNMNC symbol

Symbol

Trb

Locations with GPS information

IDs

GUSID (Global unique identifier short form) rDVdpKlTAki0u673aVHe8w
GUID (Global unique identifier) A45D35AC-53A9-4802-B4BB-AEF76951DEF3
Database ID 3888