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Stilpnomelane

Pictures (10 Images total)

Stilpnomelan
Views (Image: 1192558630): 4281
Stilpnomelan

Stilpnomelan von Laytonville Quarry, bei Laytonville, Mendocino Co., Kalifornien, USA; Bildausschnitt etwa 5 x 2 cm; rotbraune Blättchen in Quarz

Collection: rtbstone
Copyright: rtbstone
Contribution: rtbstone 2007-10-16
Locality: Laytonville Quarry / Laytonville / Mendocino Co. / Kalifornien (California) / USA
Stilpnomelan on quartz
Views (Image: 1288888950): 3464
Stilpnomelan on quartz

landsverk 1 (jokelid) evje norwegen 3/9-10; Gold coloured stilmpnomelan on 2mm quartz xxls.

Collection: kryso
Copyright: kryso
Contribution: kryso 2010-11-04
Locality: Landsverk 1 (Landsverk Feldspatmine; Jokeli Mine) / Landsverk / Evje og Hornnes / Setesdal / Agder, Provinz / Norwegen
Stilpnomelan
Views (Image: 1158089704): 3895
Stilpnomelan

Fundort: Bellsgrove Mine, Strontian, North West Highlands (Argyllshire), Schottland, UK; Größe: Länge der Kristallplättchen bis 2 mm

Copyright: Torben
Contribution: Torben 2006-09-12
Locality: Bellsgrove Mine / Strontian / Highland / Schottland / UK
Stilpnomelan
Views (Image: 1307127851): 3187
Stilpnomelan

Braune blättrige Kristalle auf Epidot und Albit, gefunden 2010, BB = 7,1 mm. Fundort: Landsverk 1,Evje og Hornnes,Aust Agder,Norwegen.

Collection: Ludwig Siebler
Copyright: Hannes Osterhammer
Contribution: Manfred Früchtl 2011-06-03
Locality: Landsverk 1 (Landsverk Feldspatmine; Jokeli Mine) / Landsverk / Evje og Hornnes / Setesdal / Agder, Provinz / Norwegen
Stilpnomelan
Views (Image: 1307128106): 2288
Stilpnomelan

Braune blättrige Kristalle auf Albit, gefunden 2010, BB = 8,5 mm. Fundort: Landsverk 1,Evje og Hornnes,Aust Agder,Norwegen.

Collection: Ludwig Siebler
Copyright: Hannes Osterhammer
Contribution: Manfred Früchtl 2011-06-03
Locality: Landsverk 1 (Landsverk Feldspatmine; Jokeli Mine) / Landsverk / Evje og Hornnes / Setesdal / Agder, Provinz / Norwegen
Stilpnomelan
Views (Image: 1360928213): 761
Stilpnomelan

Winzige braune Stilpnomelan-Blättchen. Spatgrube Cornelia, Hagendorf-Süd, Oberpfalz, bayern, Deutschland.

Collection: raritätenjäger
Copyright: raritätenjäger
Contribution: raritätenjäger 2013-02-15
Locality: Hagendorf-Süd (Grube Cornelia) / Hagendorf / Waidhaus / Neustadt an der Waldnaab, Landkreis / Oberpfalz, Bezirk / Bayern / Deutschland

Collectors Summary

Color braun rot, grün, goldbraun, schwarz
Streak color grauweiß
Hardness (Mohs) 3.5
Solubility +++ HF, HCl
Crystal System triklin, P1

Chemism

Chem­ical formula

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

Chem­ical com­po­si­tion

Aluminium, Eisen, Magnesium, Silicium, Kalium, Sauerstoff, Wasserstoff

Unit weight: 1207.15139413 u; Number of atoms in the formula: 60.75

Info

Empirical formula:

K(Fe0.55Mg0.3Fe0.1Al0.05)8(Si0.75Al0.25)12(O0.75(OH)0.25)27·2H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.90

10.75

17.70

1.0079470

10.8354303

Oxygen

O

38.44

29

47.74

15.9994300

463.9834700

Magnesium

Mg

4.83

2.4

3.95

24.3050600

58.3321440

Aluminium

Al

7.60

3.4

5.60

26.9815382

91.7372299

Silicon

Si

20.94

9

14.81

28.0855300

252.7697700

Potassium

K

3.24

1

1.65

39.0983100

39.0983100

Iron

Fe

24.06

5.2

8.56

55.8452000

290.3950400

Anal­y­sis wt%

SiO2 : 46.66, Al2O3 : 5.39, Fe2O3 : 8.01, FeO : 24.82, MnO : 0.58, MgO : 3.91, CaO : 0.46, K2O : 1.84, H2O : 8.40 (Ref: American Mineralogist 65)

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.17-040

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

Clas­sifica­tion by Hölzel

9.EF.100

9: SILICATES
E: Phyllosilicates
F: Other Micas without H2O
1: Triclinic Stilpnomelane-Group

Dana 8th edi­tion

74.01.01.01

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

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

braun rot, grün, goldbraun, schwarz

Streak color

grauweiß

Diaphane­ity (Trans­parency)

teilweise durchscheinend bis opak

max. Birefrin­gence

0.112

Birefringence chart\! Stilpnomelane title=Birefringence chart Stilpnomelane

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

1.623

RI value β

1.735

RI value γ / ε

1.735

Ri mean

1.698

2V angle

Biaxial (-) 0°~

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell param­e­ters a (Å)

21.724

Cell param­e­ters b (Å)

21.724

Cell param­e­ters c (Å)

17.740

Cell param­e­ters a/b or c/a

1.000

Cell param­e­ters c/b

0.817

Cell param­e­ters α

124.13

Cell param­e­ters β

95.85

Cell param­e­ters γ

120.0

Z

6

Volumne (ų)

5076.145

X-Ray Pow­der Diffrac­tion

12.1(100),
4.039(80),
3.027(70),
2.715(40),
2.570(100),
2.350(70),
1.585(60),
1.571(50)

XRD chart Stilpnomelane

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

3.5

VHN (Hard­ness Vick­ers)

130 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.77 - 2.96 / Durchschnittlich = 2.86

2.369 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HF, HCl

Preface

Author (Name, Year)

Glocker, 1827

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 756

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

'Ekmanite'

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

9.EG.40

Bannisterite

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

monoklin : 2/m : A2/a

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

Lennilenapeite

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

9.EG.40

Franklinphilite

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

9.EG.40

'Bariumbannisterite'

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

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]

Stilpnomelane

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

triklin : 1 : P1

9.EF.100

Umbrianite

K7Na2Ca2[Al3Si10O29]F2Cl2

orthorhombisch : mmm : Pmmn

9.EF.118

Minnesotaite

Fe2+3Si4O10(OH)2

triklin : 1 : P1

9.EF.130

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

Varieties

Ferristilpnomelane

Other languages

Spanish

Estilpnomelana

German

Stilpnomelan

English

Stilpnomelane

French

Stilpnomelane

Russian

Стильпномелан

Traditional Chinese

黑硬綠泥石

Simplified Chinese

黑硬绿泥石

Japanese

スチルプノメレン鉱

Alternative Name

English

Chalcodite

Chrysobiotite

Ferrostilpnomelane

Manganoan Stilpnomelane

English

Minguettite

Minguétit

Minguétita

Italian

Minguétita

Minguétite

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

German pages

DeWikiPedia - search for: Stilpnomelan
Google-Bilder-Suche - search for: Stilpnomelan
Mineralogisch-Petrographisches-Institut Hamburg - search for: Stilpnomelan

English pages

Mindat - search for: Stilpnomelane
Webmineral - search for:Stilpnomelane
Handbook-of-Mineralogy - search for: Stilpnomelane
RRUFF - Raman, XRD and other mineral data - search for: Stilpnomelane
RRUFF - References and PDF downloads - search for: Stilpnomelane
American-Mineralogist-Crystal-Structure-Database - search for: Stilpnomelane
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Russian pages

Webmineral.ru - search for: Стильпномелан

Mineral Dealer

German pages

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Crystal-Treasure.com - search for: Stilpnomelan
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