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Manaksite (Manaksit)

Pictures (2 Images total)

Manaksit
Views (File:
1244324856
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Manaksit
Kristallgröße: 3 mm; Fundort: Palitra-Pegmatit, Kedykverpakhk, Lovozero Massif, Kola, Russland
Copyright: Pavel M. Kartashov; Contribution: Philip Blümner
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Kedykverpakhk, Berg/Palitra-Pegmatit
Mineral: Manaksite
Image: 1244324856
Rating: 6 (votes: 2)
License: Usage for Mineralienatlas project only
Manaksit

Kristallgröße: 3 mm; Fundort: Palitra-Pegmatit, Kedykverpakhk, Lovozero Massif, Kola, Russland
Copyright: Pavel M. Kartashov
Contribution: Philip Blümner 2009-06-06
Locality: Palitra-Pegmatit / Kedykverpakhk, Berg / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Farblose bis bräunlichweiße Manaksit-Stengel
Views (File:
1128236918
): 989
Farblose bis bräunlichweiße Manaksit-Stengel
Fundort: Kedykverpachk-Berg, Lovozero-Massiv, Kola-Halbinsel, Russland; Bildbreite: 6 mm
Copyright: McSchuerf; Contribution: McSchuerf
Location: Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Kedykverpakhk, Berg
Mineral: Manaksite
Image: 1128236918
Rating: 5 (votes: 2)
License: Usage for Mineralienatlas project only
Farblose bis bräunlichweiße Manaksit-Stengel

Fundort: Kedykverpachk-Berg, Lovozero-Massiv, Kola-Halbinsel, Russland; Bildbreite: 6 mm

Copyright: McSchuerf
Contribution: McSchuerf 2005-10-02
Locality: Kedykverpakhk, Berg / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color farblos, cremeweiß, rose
Streak color weiß
Hardness (Mohs) 5
Cleavages vollkommen {001} und {010}
Fracture treppenartig
Solubility +++ Säuren
Crystal System triklin, P1

Chemism

Chemical formula

KNaMn2+[Si4O10]

Chemical composition

Mangan, Natrium, Silicium, Kalium, Sauerstoff

Unit weight: 389.3625501 u; Number of atoms in the formula: 17

Info

Empirical formula:

KNaMn[Si4O10]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

41.09

10

58.82

15.9994300

159.9943000
Sodium

Na

5.90

1

5.88

22.9897702

22.9897702
Silicon

Si

28.85

4

23.53

28.0855300

112.3421200
Potassium

K

10.04

1

5.88

39.0983100

39.0983100
Manganese

Mn

14.11

1

5.88

54.9380499

54.9380499

Analysis wt%

Na2O : 8.90, K2O : 10.90, MnO : 17.20, FeO : 0.80, SiO2 : 62.00 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 92)

Strunz 9th edition incl. updates

9.DG.70

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
G: Ketten- und Bandsilikate mit 3-periodischen Einfach- und Mehrfachketten
70:Litidionit-Gruppe

Lapis Classification

VIII/H.04-020

VIII: SILIKATE
H: Schichtsilikate
4: tetragonale oder pseudotetragonale Schichtstrukturen [Si4O10] 4- u.a.

Classification by Hölzel

9.EA.610

9: SILICATES
E: Phyllosilicates
A: tetragonal & pseudotetragonal Phyllosilicates
6: Fenaksite-Group

Dana 8th edition

70.01.01.03

70: Inosilicates Inosilicate Column or Tube Structures
01: Inosilicates Inosilicate Column or Tube Structures with columnar silicate units
01: Litidionite group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Litidionite group

Optical Properties

Color

farblos, cremeweiß, rose

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.017
Birefringence chart\! Manaksite title=Birefringence chart Manaksite

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

1.540

RI value β

1.551

RI value γ / ε

1.557

Ri mean

1.549

2V angle

Biaxial (-) 73°

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell parameters a (Å)

6.993

Cell parameters b (Å)

8.219

Cell parameters c (Å)

10.007

Cell parameters a/b or c/a

0.851

Cell parameters c/b

1.218

Cell parameters α

105.12

Cell parameters β

100.77

Cell parameters γ

114.78

Z

2

Volume (ų)

474.464

X-Ray Powder Diffraction

6.89(70),
4.07(50),
3.45(100),
3.26(90),
3.05(80),
2.880(70),
2.715(70),
2.463(70)
XRD chart Manaksite

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)

2.73

2.725 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen {001} und {010}

Fracture

treppenartig

Tenacity

spröde

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Lovozero/Alluaiv

Preface

Author (Name, Year)

Khomyakov & Kurova & Nechelyustov, 1992

References

Zapiski Vserossiskogo Mineralogicheskogo Obshchetstva 121 (1992) (1), 112

IMA group assignments

 
Litidionite group
 
 
 

 
 
Calcinaksite
KNaCa(Si4O10)·H2O
triklin
P1

 
 
Enricofrancoite
KNaCaSi4O10
triklin
P1

 
 
Fenaksite
KNaFe2+Si4O10
triklin
P1

 
 
Litidionite
CuNaKSi4O10
triklin
P1

 
 
Manaksite
KNaMn2+[Si4O10]
triklin
P1

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Actuality: 15. May 2025 - 06:46:47

Other languages

German

Manaksit

Spanish

Manaksita

English

Manaksite

French

Manaksite

Russian

Манаксит

CNMNC (IMA)-Number

IMA 1990-024

CNMNC symbol

Symbol

Mnk

Locations with GPS information

IDs

GUSID (Global unique identifier short form) -Ew0a_bwOkmnyV2IOCn8bA
GUID (Global unique identifier) 6B344CF8-F0F6-493A-A7C9-5D883829FC6C
Database ID 2348