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Parsettensite (Parsettensit)

Pictures (2 Images total)

Parsettensit
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Parsettensit

Bildbreite: 3 mm; Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA

Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-19
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Parsettensit
Views (Image: 1283595812): 819
Parsettensit

Bildbreite: 9 mm, Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA

Copyright: Jason B. Smith
Contribution: thdun5 2010-09-04
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA

Collectors Summary

Color kupferrot
Streak color bräunlich gelb
Lustre Halbmetallglanz, Metallglanz
Hardness (Mohs) In der ursprünglichen Beschreibung ist kein Wert angegeben. Ein Wert von 1,5 ist im Handbuch der Mineralogie angegeben, erscheint aber sehr zweifelhaft (zu niedrig).
Solubility +++ heiße konz. HCl, + verdünnte HCl
Crystal System monoklin, C2/m

Chemism

Chemical formula

(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50·nH2O

Chemical composition

Calcium, Magnesium, Mangan, Natrium, Silicium, Kalium, Sauerstoff, Wasserstoff

Unit weight: 8152.885070775 u; Number of atoms in the formula: 399.5

Info

Empirical formula:

(K0.6Na0.3Ca0.1)7.5(Mn0.75Mg0.25)49Si72O168(OH)50·nH2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.64

52

13.02

1.0079470

52.4132440

Oxygen

O

42.98

219

54.82

15.9994300

3,503.8751700

Sodium

Na

0.63

2.25

0.56

22.9897702

51.7269830

Magnesium

Mg

3.65

12.25

3.07

24.3050600

297.7369850

Silicon

Si

24.80

72

18.02

28.0855300

2,022.1581600

Potassium

K

2.16

4.5

1.13

39.0983100

175.9423950

Calcium

Ca

0.37

0.75

0.19

40.0784000

30.0588000

Manganese

Mn

24.76

36.75

9.20

54.9380499

2,018.9733338

Analysis wt%

SiO2 : 42.90, Al2O3 : 4.35, MnO : 34.43, MgO : 2.70, CaO : 0.59, K2O : 0.94, H2O : 12.81 (Ref: Hintze, Handbuch der Mineralogie, 1904-1974)

Strunz 9th edition incl. updates

9.EG.40

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
G: Doppelnetze mit sechsfach-Ringen
40:Stilpnomelan-Gruppe

Lapis Classification

VIII/H.17-050

VIII: SILIKATE
H: Schichtsilikate
17: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen;

Classification by Hölzel

9.EG.240

9: SILICATES
E: Phyllosilicates
G: Hydrated Micas
2: With Mn

Dana 8th edition

74.01.03.01

74: Phyllosilicates Phyllosilicate Modulated Layers
01: Phyllosilicates Phyllosilicate Modulated Layers with joined islands

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

kupferrot

Streak color

bräunlich gelb

Diaphaneity (Transparency)

durchscheinend bis teilweise durchscheinend

Lustre

Halbmetallglanz, Metallglanz

max. Birefringence

0.030

Birefringence chart\! Parsettensite title=Birefringence chart Parsettensite

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

1.546

RI value β

1.575

RI value γ / ε

1.576

Ri mean

1.566

2V angle

Biaxial (-) 4°

Pleochroism

frablos, hellgelb, graugelb

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

39.1

Cell parameters b (Å)

22.84

Cell parameters c (Å)

17.95

Cell parameters a/b or c/a

1.712

Cell parameters c/b

0.786

Cell parameters α

90°

Cell parameters β

135.60

Cell parameters γ

90°

Z

2

Volumne (ų)

11215.701

X-Ray Powder Diffraction

12.62(100),
4.51(20),
4.195(20),
3.70(20),
2.791(30),
2.639(50),
2.417(30),
1.628(30)

XRD chart Parsettensite

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)

In der ursprünglichen Beschreibung ist kein Wert angegeben. Ein Wert von 1,5 ist im Handbuch der Mineralogie angegeben, erscheint aber sehr zweifelhaft (zu niedrig).

VHN (Hardness Vickers)

18 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.59

2.414 ( ρ calc. Mineralienatlas )

Instability

+++ heiße konz. HCl, + verdünnte HCl

Preface

Occurrences

In und im Umkreis von Mangan-Lagerstätten

Author (Name, Year)

Jakob, 1923

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 627

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Bannisterite

(Ca,K,Na)(Mn2+,Fe2+,Mg,Zn)10(Si,Al)16O38(OH)8·nH2O

monoklin : 2/m : A2/a

9.EG.40

'Bariumbannisterite'

(K,H3O)(Ba,Ca)(Mn2+,Fe2+,Mg)21(Si,Al)32O80(O,OH)16·4-12 H2O

9.EG.40

'Ekmanite'

(Fe2+,Mg,Mn,Fe3+)3(Si,Al)4O10(OH)2·2H2O

9.EG.40

Franklinphilite

(K,Na)1-x(Mn2+,Mg,Zn,Fe3+)8(Si,Al)12(O,OH)36·nH2O

9.EG.40

Lennilenapeite

K6-7(Mg,Mn,Fe2+,Fe3+,Zn)48(Si,Al)72(O,OH)216·16H2O

9.EG.40

Parsettensite

(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50·nH2O

monoklin : 2/m : C2/m

9.EG.40

Stilpnomelane

K(Fe2+,Mg,Fe3+,Al)8(Si,Al)12(O,OH)27·2H2O

triklin : 1 : P1

9.EG.40

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Bannisterite

(Ca,K,Na)(Mn2+,Fe2+,Mg,Zn)10(Si,Al)16O38(OH)8·nH2O

monoklin : 2/m : A2/a

VIII/H.17-010

'Bariumbannisterite'

(K,H3O)(Ba,Ca)(Mn2+,Fe2+,Mg)21(Si,Al)32O80(O,OH)16·4-12 H2O

VIII/H.17-020

Lennilenapeite

K6-7(Mg,Mn,Fe2+,Fe3+,Zn)48(Si,Al)72(O,OH)216·16H2O

VIII/H.17-030

Stilpnomelane

K(Fe2+,Mg,Fe3+,Al)8(Si,Al)12(O,OH)27·2H2O

triklin : 1 : P1

VIII/H.17-040

Middendorfite

K3Na2Mn5Si12(O,OH)36·2H2O

monoklin : 2/m, 2 : P21/m, P21

VIII/H.17-042

Franklinphilite

(K,Na)1-x(Mn2+,Mg,Zn,Fe3+)8(Si,Al)12(O,OH)36·nH2O

VIII/H.17-045

Parsettensite

(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50·nH2O

monoklin : 2/m : C2/m

VIII/H.17-050

Armbrusterite

K5Na6Mn3+Mn2+14[Si9O22]4(OH)10·4H2O

monoklin : 2/m : C2/m

VIII/H.17-055

Eggletonite

(Na,K,Ca)2(Mn,Fe)8(Si,Al)12O29(OH)7·11H2O

monoklin : m, 2/m : Ia, I2/a

VIII/H.17-060

Ganophyllite

(K,Na)xMn2+6(Si,Al)10O24(OH)4·nH2O {x = 1-2}{n = 7-11}

monoklin : 2/m : I2/a

VIII/H.17-070

Tamaite

(Ca,K,Ba,Na)3-4Mn2+24[(OH)12|{(Si,Al)4(O,OH)10}10]·21H2O

monoklin : 2/m : P21/a

VIII/H.17-075

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Ganophyllite

(K,Na)xMn2+6(Si,Al)10O24(OH)4·nH2O {x = 1-2}{n = 7-11}

monoklin : 2/m : I2/a

9.EG.200

Tamaite

(Ca,K,Ba,Na)3-4Mn2+24[(OH)12|{(Si,Al)4(O,OH)10}10]·21H2O

monoklin : 2/m : P21/a

9.EG.205

Armbrusterite

K5Na6Mn3+Mn2+14[Si9O22]4(OH)10·4H2O

monoklin : 2/m : C2/m

9.EG.220

Eggletonite

(Na,K,Ca)2(Mn,Fe)8(Si,Al)12O29(OH)7·11H2O

monoklin : m, 2/m : Ia, I2/a

9.EG.230

Middendorfite

K3Na2Mn5Si12(O,OH)36·2H2O

monoklin : 2/m, 2 : P21/m, P21

9.EG.235

Parsettensite

(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50·nH2O

monoklin : 2/m : C2/m

9.EG.240

Franklinphilite

(K,Na)1-x(Mn2+,Mg,Zn,Fe3+)8(Si,Al)12(O,OH)36·nH2O

9.EG.250

Bannisterite

(Ca,K,Na)(Mn2+,Fe2+,Mg,Zn)10(Si,Al)16O38(OH)8·nH2O

monoklin : 2/m : A2/a

9.EG.260

'Ekmanite'

(Fe2+,Mg,Mn,Fe3+)3(Si,Al)4O10(OH)2·2H2O

9.EG.265

'Sturtite'

Fe3+(Mn2+,Ca,Mg)Si4O10(OH)3·10 H2O

amorph

9.EG.270

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Stilpnomelane

K(Fe2+,Mg,Fe3+,Al)8(Si,Al)12(O,OH)27·2H2O

triklin : 1 : P1

74.01.01.01

Lennilenapeite

K6-7(Mg,Mn,Fe2+,Fe3+,Zn)48(Si,Al)72(O,OH)216·16H2O

74.01.01.02

Franklinphilite

(K,Na)1-x(Mn2+,Mg,Zn,Fe3+)8(Si,Al)12(O,OH)36·nH2O

74.01.01.03

Bannisterite

(Ca,K,Na)(Mn2+,Fe2+,Mg,Zn)10(Si,Al)16O38(OH)8·nH2O

monoklin : 2/m : A2/a

74.01.01.04

Ganophyllite

(K,Na)xMn2+6(Si,Al)10O24(OH)4·nH2O {x = 1-2}{n = 7-11}

monoklin : 2/m : I2/a

74.01.02.01

Eggletonite

(Na,K,Ca)2(Mn,Fe)8(Si,Al)12O29(OH)7·11H2O

monoklin : m, 2/m : Ia, I2/a

74.01.02.02

Parsettensite

(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50·nH2O

monoklin : 2/m : C2/m

74.01.03.01

Zussmanite

K(Fe2+,Mg,Mn)13(Si,Al)18O42(OH)14

trigonal : 3 : R3

74.01.04.01

Other languages

German

Parsettensit

Spanish

Parsettensita

English

Parsettensite

French

Parsettensite

Russian

Парсеттенсит

Alternative Name

Simplified Chinese

水硅锰石

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

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English pages

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Russian pages

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German pages

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Locations with GPS information




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