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Georgbarsanovite (Georgbarsanovit)

Pictures (1 Images total)

Georgbarsanovit
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Georgbarsanovit
grünliches Fragment von Georgbarsanovit, Nephelin-Pegmatit am Petrelius-Fluss, Chibiny, Kola, Russland; BB < 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Chibiny (Khibiny)/Petrelius, Fluss/Nephelin-Pegmatitausbiss
Mineral: Georgbarsanovite
Image: 1581009302
License: Usage for Mineralienatlas project only
Georgbarsanovit

grünliches Fragment von Georgbarsanovit, Nephelin-Pegmatit am Petrelius-Fluss, Chibiny, Kola, Russland; BB < 1 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-02-06
Locality: Nephelin-Pegmatitausbiss / Petrelius, Fluss / Chibiny (Khibiny) / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color gelb-grün (verschiedene Schattierungen)
Lustre Glasglanz
Hardness (Mohs) 5
Solubility +++ erhitzte Säuren
Crystal System trigonal, R3m

Chemism

Chemical formula

Na12(Mn,Sr,REE)3Ca6Fe2+3Zr3NbSi25O76Cl2·H2O

Additional chem. information

Eudialyt Gruppe

Chemical composition

Calcium, Chlor, Eisen, Mangan, Natrium, Niob, Silicium, Strontium, Zirconium, Sauerstoff, Wasserstoff, REE

Unit weight: 3278.42626822 u; Number of atoms in the formula: 134

Info

Empirical formula:

Na12(Mn0.6Sr0.3REE0.1)3Ca6Fe3Zr3NbSi25O76Cl2·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.06

2

1.49

1.0079470

2.0158940
Oxygen

O

37.58

77

57.46

15.9994300

1,231.9561100
Sodium

Na

8.41

12

8.96

22.9897702

275.8772424
Silicon

Si

21.42

25

18.66

28.0855300

702.1382500
Chlorine

Cl

2.16

2

1.49

35.4532000

70.9064000
Calcium

Ca

7.33

6

4.48

40.0784000

240.4704000
Manganese

Mn

3.02

1.8

1.34

54.9380499

98.8884898
Iron

Fe

5.11

3

2.24

55.8452000

167.5356000
Strontium

Sr

2.41

0.9

0.67

87.6210000

78.8589000
Zirconium

Zr

8.35

3

2.24

91.2242000

273.6726000
Niobium

Nb

2.83

1

0.75

92.9063820

92.9063820
Rare Earth

REE

1.32

0.3

0.22

144.0000000

43.2000000

Analysis wt%

SiO2 : 46.03, Nb2O5 : 3.72, ZrO2 : 12.08, FeO : 5.57, MnO : 2.55, La2O3 : 0.87, Ce2O3 : 1.58, Nd2O3 : 0.65, Y2O3 : 0.43, CaO : 10.73, SrO : 2.24, Na2O : 11.03, Cl : 1.20, H2O : 0.48, Ln2O3 : 3.53 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 2005)

Strunz 9th edition incl. updates

9.CO.10

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
O: ~[Si9O27]18- neuner-Ringe
10:Eudialyt-Gruppe

Lapis Classification

VIII/E.25-052

VIII: SILIKATE
E: Ringsilikate
25: Neunerringe + Dreierringe; Eudialyt-Gruppe

Classification by Hölzel

9.CG.140

9: SILICATES
C: Cyclosilicates
G: ~[Si3O9]6-- + ~[Si9O27]18--Rings Eudialyte-Group
1: Eudialyte-Group - c=30, Fe- Series

Dana 8th edition

64.01.01.17

64: Cyclosilicates Cyclosilicates
01: Cyclosilicates Cyclosilicates Cyclosilicate Rings with Other Anions and Insular Silicate Groups with mixed ring types
01: Eudialyte Group

IMA status

anerkannt 2003

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Eudialyte group

Optical Properties

Color

gelb-grün (verschiedene Schattierungen)

Diaphaneity (Transparency)

transparent bis durchscheinend

Lustre

Glasglanz

max. Birefringence

0.008
Birefringence chart\! Georgbarsanovite title=Birefringence chart Georgbarsanovite

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

1.639

RI value γ / ε

1.631

Ri mean

1.636

2V angle

Uniaxial (-)

Crystallography

Crystal System

trigonal

Class (H-M)

3m

Space Group number

160

Space Group

R3m

Cell parameters a (Å)

14.274

Cell parameters b (Å)

-

Cell parameters c (Å)

30.02

Cell parameters a/b or c/a

2.103

Cell parameters c/b

-

Z

3

Volumne (ų)

5297.033

X-Ray Powder Diffraction

6.42(54), 4.30(62), 3.202(100), 3.155(71), 2.975(98), 2.857(94), 2.591(54)
XRD chart Georgbarsanovite

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

VHN (Hardness Vickers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.05 (gemessen)

3.083 ( ρ calc. Mineralienatlas )

Instability

+++ erhitzte Säuren

(Co-)Type locality

(Co-)Type locality

Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Chibiny (Khibiny)/Petrelius, Fluss/Nephelin-Pegmatitausbiss

Preface

Author (Name, Year)

Khomyakov & Nechelyustov & Ekimenkova & Rastsvetaeva, 2005

References

Khomyakov, A. P.; Rastsvetaeva, R. K. (2005): Wie wir Barsanovit verloren und Georgbarsanovit gewannen. Priroda, (12), 25-28. (in Russisch)

Khomyakov, A. P.; Nechelyustov, G. N.; Ekimenkova, I. A.; Rastsvetaeva, R. K. (2005): Georgdarsanovite, Na12(Mn,Sr,REE)3Ca6Fe2+3Zr3NbSi25O76Cl2·H2O Eine Mineralart der Eudialyt Gruppe: neue Gültigkeit von Barsanovit und der neue Name des Minerals. Zapiski Rossiiskogo Mineralogicheskogo Obshchestva 134, 47-57. (in Russisch)

IMA group assignments

Other languages

German

Georgbarsanovit

English

Georgbarsanovite

Russian

Георгбарсановит

Simplified Chinese

乔异性石

Traditional Chinese

喬異性石

CNMNC (IMA)-Number

IMA 2003-013

CNMNC symbol

Symbol

Gba