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Kuzmenkoite-Mn

Pictures (4 Images total)

orange Kuzmenkoit-Mn xx
Views (File:
1208374755
): 1140
orange Kuzmenkoit-Mn xx
Größe: 3 mm; Fundort: Berg Flora, Lovozero Massif, Kola, Russland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Berg Flora
Mineral: Kuzmenkoite group, Kuzmenkoite-Mn
Image: 1208374755
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
orange Kuzmenkoit-Mn xx

Größe: 3 mm; Fundort: Berg Flora, Lovozero Massif, Kola, Russland

Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2008-04-16
Locality: Berg Flora / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
gelbe Kuzmenkoit-Mn xx
Views (File:
1208374858
): 977
gelbe Kuzmenkoit-Mn xx
Bildgröße: 12 x 15 mm; Fundort: Berg Flora, Lovozero Massif, Kola, Russland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Berg Flora
Mineral: Kuzmenkoite group, Kuzmenkoite-Mn
Image: 1208374858
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
gelbe Kuzmenkoit-Mn xx

Bildgröße: 12 x 15 mm; Fundort: Berg Flora, Lovozero Massif, Kola, Russland

Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2008-04-16
Locality: Berg Flora / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Kuzmenkoit-Mn
Views (File:
1244235290
): 874
Kuzmenkoit-Mn
Bildbreite: 15 mm; Fundort: Berg Flora, Lovozero Massif, Kola, Russland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Berg Flora
Mineral: Kuzmenkoite-Mn
Image: 1244235290
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
Kuzmenkoit-Mn

Bildbreite: 15 mm; Fundort: Berg Flora, Lovozero Massif, Kola, Russland

Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2009-06-05
Locality: Berg Flora / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Calciohilairit (weiß) und Kuzmenkoit-Mn (orange)
Views (File:
1208363953
): 1770
Calciohilairit (weiß) und Kuzmenkoit-Mn (orange)
Bildbreite: 10 mm; Fundort: Berg Flora, Lovozero-Massiv, Kola, Russland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Berg Flora
Mineral: Calciohilairite, Kuzmenkoite-Mn
Image: 1208363953
License: Usage for Mineralienatlas project only
Calciohilairit (weiß) und Kuzmenkoit-Mn (orange)

Bildbreite: 10 mm; Fundort: Berg Flora, Lovozero-Massiv, Kola, Russland

Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2008-04-16
Locality: Berg Flora / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color farblos, gelb, gelbbraun, dunkelorange
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 5
Cleavages unvollkommen
Fracture uneben, rauh
Crystal System monoklin, C2/m

Chemism

Chemical formula

K2MnTi4(Si4O12)2(OH)4·5-6H2O

Chemical composition

Mangan, Silicium, Titan, Kalium, Sauerstoff, Wasserstoff

Unit weight: 1100.3874199 u; Number of atoms in the formula: 63.5

Info

Empirical formula:

K2MnTi4(Si4O12)2(OH)4·5.5H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.37

15

23.62

1.0079470

15.1192050

Oxygen

O

48.71

33.5

52.76

15.9994300

535.9809050

Silicon

Si

20.42

8

12.60

28.0855300

224.6842400

Potassium

K

7.11

2

3.15

39.0983100

78.1966200

Titanium

Ti

17.40

4

6.30

47.8671000

191.4684000

Manganese

Mn

4.99

1

1.57

54.9380499

54.9380499

Analysis wt%

Ø SiO2 : 43.61, Nb2O5 : 4.82, TiO2 : 25.78, FeO : 1.18, MnO : 4.06, BaO : 1.17, K2O : 7.33, Na2O : 0.64, H2O : 10.93 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 99)

Strunz 9th edition incl. updates

9.CE.30

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

Lapis Classification

VIII/E.07-060

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

Classification by Hölzel

9.CB.560

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

Dana 8th edition

60.01.03c.01

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

IMA status

Mit Anerkennung der CNMNC umbenannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Labuntsovite supergroup  ⇒ Kuzmenkoite group

Optical Properties

Color

farblos, gelb, gelbbraun, dunkelorange

Streak color

weiß

Diaphaneity (Transparency)

durchscheinend

Lustre

Glasglanz

max. Birefringence

0.092

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

1.687

RI value γ / ε

1.775

Ri mean

1.715

2V angle

Biaxial (+) 26°c

Dispersion

moderat; r > v

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

14.369

Cell parameters b (Å)

13.906

Cell parameters c (Å)

7.812

Cell parameters a/b or c/a

1.033

Cell parameters c/b

0.562

Cell parameters α

90°

Cell parameters β

117.8°

Cell parameters γ

90°

Z

2

Volume (ų)

1380.793

X-Ray Powder Diffraction

7.00(90),
6.33(80),
4.86(70),
3.17(100),
3.08(50),
2.58(40),
2.47(40),
1.551(40)

XRD chart Kuzmenkoite-Mn

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)

2.562 (berechnet) 2.67 (gemessen)

2.646 ( ρ calc. Mineralienatlas )

Cleavages

unvollkommen

Fracture

uneben, rauh

Tenacity

spröde

Preface

Name from

M. V. Kuz'menko (1918-1995), russischer Geochemiker und Mineraloge

Author (Name, Year)

Chukanov & Pekov & Golovina & Zadov & Nedelko, 1999

References

Zapiski Vserossiskogo Mineralogicheskogo Obshchetstva 128 (1999) (4), 42

IMA group assignments

Other languages

German

Kuzmenkoit-Mn

English

Kuzmenkoite-Mn

French

Kuzmenkoite-Mn

Spanish

Kuzmenkoíta-Mn

Russian

Кузьменкоит

Russian

Кузьменкоит-Mn

Traditional Chinese

矽鉀錳鈮鈦石

Simplified Chinese

硅钾锰铌钛石

Alternative Name

Spanish

Kuzmenkoita

CNMNC (IMA)-Number

IMA 1998-058

CNMNC symbol

Symbol

Kz-Mn

Locations with GPS information

IDs

GUSID (Global unique identifier short form) DtXXLLeEhEq2LYecD9WMgA
GUID (Global unique identifier) 2CD7D50E-84B7-4A84-B62D-879C0FD58C80
Database ID 2097