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Lennilenapeite (Lennilenapeit)

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Lennilenapeit
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Lennilenapeit
grüne, blättrige Aggregate von Lennilenapeit in und auf Calcit, Franklin Mine, Franklin, Sussex County, New Jersey, USA; BB < 5 mm
Copyright: Joy Desor; Contribution: openpit
Location: USA/New Jersey/Sussex County/Franklin Mining District/Franklin/Franklin Mine
Mineral: Lennilenapeite
Image: 1592498321
License: Usage for Mineralienatlas project only
Lennilenapeit

grüne, blättrige Aggregate von Lennilenapeit in und auf Calcit, Franklin Mine, Franklin, Sussex County, New Jersey, USA; BB < 5 mm
Copyright: Joy Desor
Contribution: openpit 2020-06-18
Locality: Franklin Mine / Franklin / Franklin Mining District / Sussex County / New Jersey / USA

Collectors Summary

Color bräunlichschwarz, grün, hellgrün, dunkelbraun
Streak color braun
Hardness (Mohs) 3
Crystal System triklin,

Chemism

Chemical formula

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

Chemical composition

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

Unit weight: 7914.9547074 u; Number of atoms in the formula: 444.5

Info

Empirical formula:

K6.5(Mg0.55Mn0.25Fe0.1Fe0.05Zn0.05)48(Si0.75Al0.25)72(O0.75(OH)0.25)216·16H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.10

86

19.35

1.0079470

86.6834420
Oxygen

O

46.90

232

52.19

15.9994300

3,711.8677600
Magnesium

Mg

8.11

26.4

5.94

24.3050600

641.6535840
Aluminium

Al

6.14

18

4.05

26.9815382

485.6676876
Silicon

Si

19.16

54

12.15

28.0855300

1,516.6186200
Potassium

K

3.21

6.5

1.46

39.0983100

254.1390150
Manganese

Mn

8.33

12

2.70

54.9380499

659.2565988
Iron

Fe

5.08

7.2

1.62

55.8452000

402.0854400
Zinc

Zn

1.98

2.4

0.54

65.4094000

156.9825600

Analysis wt%

SiO2 : 45.11, Al2O3 : 4.79, Fe2O3 : 7.15, FeO : 7.32, MgO : 11.39, CaO : 0.59, MnO : 6.22, ZnO : 4.92, K2O : 2.76, BaO : 0.91, H2O : 8.46 (Ref: Canadian Mineralogist 84)

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.17-030

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

Classification by Hölzel

9.EG.140

9: SILICATES
E: Phyllosilicates
G: Hydrated Micas
1: Hydromicas

Dana 8th edition

74.01.01.02

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

bräunlichschwarz, grün, hellgrün, dunkelbraun

Streak color

braun

Diaphaneity (Transparency)

durchscheinend bis opak

max. Birefringence

0.041
Birefringence chart\! Lennilenapeite title=Birefringence chart Lennilenapeite

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

1.553

RI value β

1.594

RI value γ / ε

1.594

Ri mean

1.580

2V angle

Biaxial (-) 0°

Crystallography

Crystal System

triklin

Cell parameters a (Å)

21.9

Cell parameters b (Å)

d(001)=

Cell parameters c (Å)

12.18

Cell parameters α

nd

Cell parameters β

nd

Cell parameters γ

nd

Z

2

X-Ray Powder Diffraction

12.11(100),
4.07(20),
3.04(20),
2.734(30),
2.582(40),
2.365(30),
1.593(30),
1.578(30)
XRD chart Lennilenapeite

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

Physical Properties

Hardness (Mohs)

3

VHN (Hardness Vickers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.72

(Co-)Type locality

(Co-)Type locality

USA/New Jersey/Sussex County/Franklin Mining District/Franklin

Preface

Author (Name, Year)

Dunn & Peacor & Simmons, 1984

References

Canadian Mineralogist 22 (1984), 259

Other languages

German

Lennilenapeit

French

Lennilenapeite

English

Lennilenapeite

Spanish

Lennilenapeíta

Japanese

ﾚﾆﾚﾅｯﾍﾟｱｲﾄ

CNMNC (IMA)-Number

IMA 1982-085

CNMNC symbol

Symbol

Lnl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) HzCRqrLNsU2v-lM79RduLQ
GUID (Global unique identifier) AA91301F-CDB2-4DB1-AFFA-533BF5176E2D
Database ID 2181