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Organovaite-Mn

Pictures (1 Images total)

Organovait-Mn (xx)
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1514997376
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Organovait-Mn (xx)
Mt.Karnasurt,Lovozero/Kola,Rußland; Bildbreite ca.5 mm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Karnasurt, Berg
Mineral: Organovaite-Mn
Image: 1514997376
License: Usage for Mineralienatlas project only
Organovait-Mn (xx)

Mt.Karnasurt,Lovozero/Kola,Rußland; Bildbreite ca.5 mm

Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2018-01-03
Locality: Karnasurt, Berg / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color braun, rosa
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 5
Cleavages keine
Fracture uneben
Crystal System monoklin, C2/m

Chemism

Chemical formula

K2MnNb4(Si4O12)2O4·5-7H2O

Chemical composition

Mangan, Niob, Silicium, Kalium, Sauerstoff, Wasserstoff

Unit weight: 1285.5204219 u; Number of atoms in the formula: 61

Info

Empirical formula:

K2MnNb4(Si4O12)2O4·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.94

12

19.67

1.0079470

12.0953640

Oxygen

O

42.32

34

55.74

15.9994300

543.9806200

Silicon

Si

17.48

8

13.11

28.0855300

224.6842400

Potassium

K

6.08

2

3.28

39.0983100

78.1966200

Manganese

Mn

4.27

1

1.64

54.9380499

54.9380499

Niobium

Nb

28.91

4

6.56

92.9063820

371.6255280

Analysis wt%

Ø SiO2 : 38.36, Nb2O5 : 27.97, TiO2 : 8.87, ZnO : 2.04, MnO : 5.07, CaO : 1.06, BaO : 1.31, Na2O : 0.51, K2O : 4.31, H2O : 10.40 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 2001)

Strunz 9th edition incl. updates

9.CE.30g

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
E: [Si4O12]8- vierer-Einfachringe, ohne inselartige komplexe [Anionen]
30g:

Lapis Classification

VIII/E.07-190

VIII: SILIKATE
E: Ringsilikate
7: Viererringe [Si4O12] 8-; Labuntsovit-Gruppe

Classification by Hölzel

9.CB.440

9: SILICATES
C: Cyclosilicates
B: ~[Si4O12]8-, ~[Si4O10]4--Rings
4: Labuntsovite-Group - Monoclinic, c=~~15

Dana 8th edition

60.01.03h.01

60: Cyclosilicates Cyclosilicate Four-Membered Rings
01: Cyclosilicates Cyclosilicate Four-Membered Rings as Titanosilicates
03h: Labuntsovite Group (Organovaite subgroup Monoclinic [C2/m])

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Labuntsovite supergroup  ⇒ Organovaite group

Optical Properties

Color

braun, rosa

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend

Lustre

Glasglanz

max. Birefringence

0.092

Birefringence chart\! Organovaite-Mn title=Birefringence chart Organovaite-Mn

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

1.683

RI value β

1.692

RI value γ / ε

1.775

Ri mean

1.717

2V angle

Biaxial (+) 40° (gemessen) 38° (berechnet)

Dispersion

schwach

Absorption

Y > X = Z

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

14.551

Cell parameters b (Å)

14.001

Cell parameters c (Å)

15.702

Cell parameters a/b or c/a

1.039

Cell parameters c/b

1.121

Cell parameters α

90°

Cell parameters β

117.58

Cell parameters γ

90°

Z

4

Volume (ų)

2835.434

X-Ray Powder Diffraction

6.99(100),
6.43(20),
4.936(30),
3.227(90),
3.123(70),
2.607(20),
2.520(30),
1.434(20)

XRD chart Organovaite-Mn

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

5

VHN (Hardness Vickers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.92 (berechnet) 2.88 (gemessen)

3.011 ( ρ calc. Mineralienatlas )

Cleavages

keine

Fracture

uneben

Tenacity

spröde

Preface

Name from

Natalia Ivanovna Organova (b. 1929), Russische Kristallographin

Author (Name, Year)

Chukanov & Pekov & Zadov & Krivovichev & Berns & Schneider, 2001

References

Zapiski Vserossiskogo Mineralogicheskogo Obshchetstva 130 (2001) (2), 46

American Mineralogist 87 (2002), 1731-1735 [Abstrakt]

European Journal of Mineralogy 14 (2002), 165-173

IMA group assignments



 
 
 
K2MnNb4(Si4O12)2O4·5-7H2O
monoklin
C2/m

 
 
 
K2Zn(Nb,Ti)4[(O,OH)2|Si4O12]2·5-6H2O
monoklin
C2/m

 
 
 
(K,Ba)8Fe4Ti16(Si4O12)8(OH,O)16·20-28H2O
monoklin
C2/m

Refresh list

Actuality: 26. Mar 2024 - 03:06:33

Other languages

German

Organovait-Mn

French

Organovaite-Mn

English

Organovaite-Mn

Spanish

Organovaíta-Mn

Russian

Органоваит-Mn

Alternative Name

Simplified Chinese

硅钾锰钛铌石

CNMNC (IMA)-Number

IMA 2000-031

CNMNC symbol

Symbol

Org-Mn

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Y1gxcrCJ_k2tmUbDKBvV7g
GUID (Global unique identifier) 72315863-89B0-4DFE-AD99-46C3281BD5EE
Database ID 2834