https://www.edelsteine-neuburg.de
https://www.mineraliengrosshandel.com
https://www.mineral-bosse.de
https://www.mineralbox.biz
'._('einklappen').'
 

Franklinite

Pictures (33 Images total)

Franklinit
Views (Image: 1274604663): 3727
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 (Image: 1274604969): 1904
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 (Image: 1289687428): 870
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 (Image: 1266745692): 3527
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 (Image: 1274604865): 3702
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 (Image: 1581771215): 491
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 (Image: 1401392832): 924
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

Refresh list

Actuality: 23. Jun 2022 - 15:34:54

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

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

German pages

DeWikiPedia - search for: Franklinit
Google-Bilder-Suche - search for: Franklinit
Mineralienatlas.de (Forum) - search for: Franklinit

English pages

Mindat - search for: Franklinite
Webmineral - search for:Franklinite
Handbook-of-Mineralogy - search for: Franklinite
RRUFF - Raman, XRD and other mineral data - search for: Franklinite
RRUFF - References and PDF downloads - search for: Franklinite
American-Mineralogist-Crystal-Structure-Database - search for: Franklinite
Strahlen.org - search for: Franklinite

Russian pages

Webmineral.ru - search for: Франклинит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Franklinit
Crystal-Treasure.com - search for: Franklinit
Bosse - search for: Franklinit
Edelsteine Neuburg - Gundolf Fischer - search for: Franklinit

Locations with GPS information