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Franklinite

Pictures (34 Images total)

Franklinit
Views (File:
1274604663
): 3821
Franklinit
Größe: 10 x 9 x 7 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA
Copyright: Rob Lavinsky; Contribution: thdun5
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill/Sterling Mine
Mineral: Franklinite
Image: 1274604663
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Franklinit

Größe: 10 x 9 x 7 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA

Copyright: Rob Lavinsky
Contribution: thdun5 2010-05-23
Locality: Sterling Mine / Sterling Hill / Ogdensburg / Franklin Mining District / Sussex Co. / New Jersey / USA
Franklinit
Views (File:
1274604969
): 1954
Franklinit
Franklinit mit Calcit und Willemit. Größe: 9 x 9 x 8 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA
Copyright: Rob Lavinsky; Contribution: thdun5
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill/Sterling Mine
Mineral: Franklinite
Image: 1274604969
Rating: 7.5 (votes: 2)
License: Usage for Mineralienatlas project only
Franklinit

Franklinit mit Calcit und Willemit. Größe: 9 x 9 x 8 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA

Copyright: Rob Lavinsky
Contribution: thdun5 2010-05-23
Locality: Sterling Mine / Sterling Hill / Ogdensburg / Franklin Mining District / Sussex Co. / New Jersey / USA
Franklinit
Views (File:
1289687428
): 931
Franklinit
Kantenlänge: 57 mm; Fundort: Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Copyright: Rock Currier; Contribution: slugslayer
Collection: National Museum of Natural History (Smithsonian Institution)
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Franklin
Mineral: Franklinite
Image: 1289687428
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Franklinit

Kantenlänge: 57 mm; Fundort: Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Collection: National Museum of Natural History (Smithsonian Institution)
Copyright: Rock Currier
Contribution: slugslayer 2010-11-13
Locality: Franklin / Franklin Mining District / Sussex Co. / New Jersey / USA
Franklinit in Willemit-Calcitmatrix
Views (File:
1266745692
): 3579
Franklinit in Willemit-Calcitmatrix
Größe: 50 mm; Fundort: Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Copyright: slugslayer; Contribution: slugslayer
Collection: giantcrystal
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Franklin
Mineral: Franklinite
Image: 1266745692
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Franklinit in Willemit-Calcitmatrix

Größe: 50 mm; Fundort: Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Collection: giantcrystal
Copyright: slugslayer
Contribution: slugslayer 2010-02-21
Locality: Franklin / Franklin Mining District / Sussex Co. / New Jersey / USA
Franklinit
Views (File:
1274604865
): 3768
Franklinit
Größe: 5 x 4,8 x 3,5 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA
Copyright: Rob Lavinsky; Contribution: thdun5
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill/Sterling Mine
Mineral: Franklinite
Image: 1274604865
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Franklinit

Größe: 5 x 4,8 x 3,5 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA

Copyright: Rob Lavinsky
Contribution: thdun5 2010-05-23
Locality: Sterling Mine / Sterling Hill / Ogdensburg / Franklin Mining District / Sussex Co. / New Jersey / USA
Franklinit
Views (File:
1581771215
): 535
Franklinit
USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill. Bildbreite 120 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Klaus Mai
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill
Mineral: Franklinite
Image: 1581771215
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Franklinit

USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill. Bildbreite 120 mm

Collection: Klaus Mai
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2020-02-15
Locality: Sterling Hill / Ogdensburg / Franklin Mining District / Sussex Co. / New Jersey / USA

Collectors Summary

Color grauschwarz bis schwarz, mit dunkelrot internen Reflektionen
Streak color rötlichbraun
Hardness (Mohs) 6.25
Solubility + Säuren!, - kalte Zitronensäure
Crystal System kubisch, Fd3m
Morphology Oktaeder (-ähnliche) Formen, rundliche Körner

Chemism

Chemical formula

(Zn,Mn2+,Fe2+)(Fe3+,Mn3+)2O4

Chemical composition

Eisen, Mangan, Zink, Sauerstoff

Unit weight: 236.54611992 u; Number of atoms in the formula: 7

Info

Empirical formula:

(Zn0.6Mn0.3Fe0.1)(Fe0.75Mn0.25)2O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

27.06

4

57.14

15.9994300

63.9977200

Manganese

Mn

18.58

0.8

11.43

54.9380499

43.9504399

Iron

Fe

37.77

1.6

22.86

55.8452000

89.3523200

Zinc

Zn

16.59

0.6

8.57

65.4094000

39.2456400

Analysis wt%

MnO : 16.37, ZnO : 15.91, Fe2O3 : 56.57, Mn2O3 : 10.52 (Ref: Dana, 7th ed. 1)

Strunz 9th edition incl. updates

4.BB.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
B: Metall: Sauerstoff = 3:4 und vergleichbare
B: Mit ausschließlich mittelgroßen [Kationen]
05:Spinel-Gruppe

Lapis Classification

IV/B.02-060

IV: OXIDE
B: Oxide mit Verhältnis Metall zu Sauerstoff = 3:4 (Spinelltyp M3O4 und verwandte Verbindungen)
2: Spinell-Gruppe; Ferrit-Spinelle

Classification by Hölzel

4.BB.110

4: OXIDES
B: Spinels R3O4
B: Fe-Spinels

Dana 8th edition

07.02.02.04

07: Multiple Oxides
02: Multiple Oxides (A+ B++)2 X4 Spinel group
02: (Iron subgroup)

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Spinel supergroup  ⇒ Oxyspinel group  ⇒ Spinel subgroup

Optical Properties

Color

grauschwarz bis schwarz, mit dunkelrot internen Reflektionen

Streak color

rötlichbraun

Diaphaneity (Transparency)

opak

RI value α / ω / n

2.36

Ri mean

2.36

2V angle

Isotropisch

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Image ⇒ Luminescence ⇒ excitation ⇒ UV shortwave ~254nm (1 Images total)

Willemit
Views (File:
1401392832
): 961
Willemit
Deckungsgleiche Aufnahmen, grünliche Einschlüsse in Calcit mit Franklinit, das UV-Bild (254nm) zeigt eine grüne Fluoreszenz für Willemit und eine rote Fluoreszenz für Calcit; BB = 20 mm. Fundort: Franklin, Franklin Mining District, Sussex Co., New Jersey, USA.
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: B002677
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Franklin
Mineral: Calcite, Franklinite, Willemite
Image: 1401392832
License: Usage for Mineralienatlas project only
Willemit (SNr: B002677)

Deckungsgleiche Aufnahmen, grünliche Einschlüsse in Calcit mit Franklinit, das UV-Bild (254nm) zeigt eine grüne Fluoreszenz für Willemit und eine rote Fluoreszenz für Calcit; BB = 20 mm. Fundort: F...

Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2014-05-29
Locality: Franklin / Franklin Mining District / Sussex Co. / New Jersey / USA

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

8.474

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volumne (ų)

608.507

X-Ray Powder Diffraction

2.99(70),
2.55(100),
2.12(40),
1.73(30),
1.632(70),
1.499(80),
1.104(50),
0.978(50)

XRD chart Franklinite

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

Morphology

Oktaeder (-ähnliche) Formen, rundliche Körner

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

6.25

VHN (Hardness Vickers)

867 (100g)

Density (g/cm³)

5.07 - 5.22 / Durchschnittlich = 5.14

5.164 ( ρ calc. Mineralienatlas )

Radioactivity

keine bekannt

Instability

+ Säuren!, - kalte Zitronensäure

Preface

Associations

Calcit, Willemit

Author (Name, Year)

Berthier, 1819

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 211

IMA group assignments


 
 
 
 
 

 
 
 
 
 
 

 
 
 
 
Fe2+Cr2O4
kubisch
Fd3m

 
 
 
 
(Co,Ni,Fe2+)(Cr,Al)2O4
kubisch
Fd3m

 
 
 
 
Fe2+V23+O4
kubisch
Fd3m

 
 
 
 
(Cu,Mg)Fe23+O4
kubisch
Fd3m

 
 
 
 
V2+Al2O4
kubisch
Fd3m

 
 
 
 
Al2O3
tetragonal
P4m2

 
 
 
 
(Zn,Mn2+,Fe2+)(Fe3+,Mn3+)2O4
kubisch
Fd3m

 
 
 
 
ZnAl2O4
kubisch
Fd3m

 
 
 
 
(Mn,Fe2+,Mg)(Al,Fe3+)2O4
kubisch
Fd3m

 
 
 
 
Co2+Co3+2O4
kubisch
Fd3m

 
 
 
 
Mn2+Mn23+O4
tetragonal
I41/amd

 
 
 
 
Fe2+Al2O4
kubisch
Fd3m

 
 
 
 
ZnMn23+O4
tetragonal
I41/amd

 
 
 
 
(Mn2+,Fe2+,Mg)(Fe3+,Mn3+)2O4
kubisch
Fd3m

 
 
 
 
Fe2.67O4
kubisch
P4132, P4332

 
 
 
 
MgCr2O4
kubisch
Fd3m

 
 
 
 
MgV23+O4
kubisch
Fd3m

 
 
 
 
MgFe23+O4
kubisch
Fd3m

 
 
 
 
Fe2+Fe23+O4
kubisch
Fd3m

 
 
 
 
(Mn,Fe2+)(Cr,V)2O4
kubisch
Fd3m

 
 
 
 
MgAl2O4
kubisch
Fd3m

 
 
 
 
CuAl2O4
kubisch
Fd3m

 
 
 
 
Fe3+(Fe3+,Ti4+,Fe2+,☐)2O4
kubisch
P4332, P4132

 
 
 
 
NiFe23+O4
kubisch
Fd3m

 
 
 
 
(Mn2+,Fe2+)(V3+,Cr3+)2O4
kubisch
Fd3m

 
 
 
 
ZnCr2O4
kubisch
Fd3m

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Actuality: 31. Jan 2023 - 19:23:01

Other languages

German

Franklinit

Spanish

Franklinita

English

Franklinite

French

Franklinite

Russian

Франклинит

Simplified Chinese

锌铁尖晶石

Japanese

フランクリン鉄鉱

Alternative Name

French

Ferrite de Zinc

German

Fracklinit

Spanish

Fracklinita

Francklinite

Isophane

Magnofranklinite

Italian

Zinkoferrita

Zinkoferrite

Simplified Chinese

锌铁矿

CNMNC symbol

Symbol

Frk

Locations with GPS information