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

Frondelite (Frondelit)

Pictures (12 Images total)

Frondelit
Views (File:
1166278617
): 1969
Frondelit
Bildbreite: 4 mm; Fundort Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried; Contribution: Hg
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Frondelite
Image: 1166278617
Rating: 9 (votes: 2)
License: Usage for Mineralienatlas project only
Frondelit

Bildbreite: 4 mm; Fundort Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA

Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-16
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Ecandrewsite, Frondelite
Views (File:
1476882454
): 1723
Ecandrewsite, Frondelite
Group of ecandrewsite crystals associated to green tabular crystals of Zn bearing frondelite; Ecandrewsite is not so rare at this locality, but it was only found associated to isokite; Ecandrewsite was characterized by XRD and EDS, frondelite by EDS; Locality: Sítio do Castelo Mine, Folgosinho, Gouveia, Guarda District, Portugal;
Copyright: Pedro Alves; Contribution: Stefan
Collection: Pedro Alves
Location: Portugal/Guarda, Distrikt/Gouveia/Folgosinho/Steinbruch Folgosinho (Sítio do Castelo Mine)
Mineral: Ecandrewsite, Frondelite
Image: 1476882454
Rating: 9 (votes: 2)
License: Usage for Mineralienatlas project only
Ecandrewsite, Frondelite

Group of ecandrewsite crystals associated to green tabular crystals of Zn bearing frondelite; Ecandrewsite is not so rare at this locality, but it was only found associated to isokite; Ecandrewsite...

Collection: Pedro Alves
Copyright: Pedro Alves
Contribution: Stefan 2016-10-19
Locality: Steinbruch Folgosinho (Sítio do Castelo Mine) / Folgosinho / Gouveia / Guarda, Distrikt / Portugal
Frondelit
Views (File:
1571471829
): 263
Frondelit
Braunrote Frondelit xx von Hagendorf, Grube Cornelia BB: ca 1 mm
Copyright: Dieter Strangfeld; Contribution: Dieter Strangfeld
Collection: Dieter Strangfeld
Location: Deutschland/Bayern/Oberpfalz, Bezirk/Neustadt an der Waldnaab, Landkreis/Waidhaus/Hagendorf/Hagendorf-Süd (Grube Cornelia)
Mineral: Frondelite
Image: 1571471829
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Frondelit

Braunrote Frondelit xx von Hagendorf, Grube Cornelia BB: ca 1 mm

Collection: Dieter Strangfeld
Copyright: Dieter Strangfeld
Contribution: Dieter Strangfeld 2019-10-19
Locality: Hagendorf-Süd (Grube Cornelia) / Hagendorf / Waidhaus / Neustadt an der Waldnaab, Landkreis / Oberpfalz, Bezirk / Bayern / Deutschland
Frondelit
Views (File:
1290951460
): 1263
Frondelit
Größe: 32x29 mm; Fundort: Rock Run, Goshen, Cherokee Co., Alabama, USA
Copyright: Rock Currier; Contribution: slugslayer
Collection: Brush Collection, Yale University
Location: USA/Alabama/Cherokee Co./Goshen/Rock Run
Mineral: Frondelite
Image: 1290951460
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Frondelit

Größe: 32x29 mm; Fundort: Rock Run, Goshen, Cherokee Co., Alabama, USA

Collection: Brush Collection, Yale University
Copyright: Rock Currier
Contribution: slugslayer 2010-11-28
Locality: Rock Run / Goshen / Cherokee Co. / Alabama / USA
Frondelit
Views (File:
1222959494
): 1699
Frondelit
Fo.: Governadora Mine, Governador Valadares, Minas Gerais, Brasilien, nadelige, büschelige, schwarze bis schwarzbraune XX, BB 1,0 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A012720, Donator: Manfred Seitz
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais/Doce-Tal/Governador Valadares
Mineral: Frondelite
Image: 1222959494
License: Usage for Mineralienatlas project only
Frondelit (SNr: A012720)

Fo.: Governadora Mine, Governador Valadares, Minas Gerais, Brasilien, nadelige, büschelige, schwarze bis schwarzbraune XX, BB 1,0 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2008-10-02
Locality: Governador Valadares / Doce-Tal / Minas Gerais / Südosten (Região Sudeste) / Brasilien
Frondelit
Views (File:
1289428051
): 1484
Frondelit
Sapucaia Mine, Galiléia, Minas Gerais, Brasilien, Höhe 33 mm
Copyright: Embarak; Contribution: Embarak
Collection: Embarak
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais/Doce-Tal/Galiléia/Sapucaia do Norte/Sapucaia Mine
Mineral: Frondelite
Image: 1289428051
License: Usage for Mineralienatlas project only
Frondelit

Sapucaia Mine, Galiléia, Minas Gerais, Brasilien, Höhe 33 mm

Collection: Embarak
Copyright: Embarak
Contribution: Embarak 2010-11-10
Locality: Sapucaia Mine / Sapucaia do Norte / Galiléia / Doce-Tal / Minas Gerais / Südosten (Região Sudeste) / Brasilien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color braun, braun grün, bräunlichschwarz, grünschwarz, dunkelgrün
Streak color bräunlich grau
Hardness (Mohs) 4.5
Solubility +++ HCl, - HNO3, H2SO4
Crystal System orthorhombisch, Bbmm

Chemism

Chemical formula

Mn2+Fe3+4(PO4)3(OH)5

Chemical composition

Eisen, Mangan, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 648.2701785 u; Number of atoms in the formula: 30

Info

Empirical formula:

MnFe4(PO4)3(OH)5

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.78

5

16.67

1.0079470

5.0397350

Oxygen

O

41.96

17

56.67

15.9994300

271.9903100

Phosphorus

P

14.33

3

10.00

30.9737612

92.9212836

Manganese

Mn

8.47

1

3.33

54.9380499

54.9380499

Iron

Fe

34.46

4

13.33

55.8452000

223.3808000

Analysis wt%

Na2O : 0.98, MnO : 7.74, Mn2O3 : 1.75, Fe2O3 : 48.85, Al2O3 : 1.31, P2O5 : 31.28, H2O : 7.52 (Ref: American Mineralogist 49)

Strunz 9th edition incl. updates

8.BC.10

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
C: Mit ausschließlich mittelgroßen [Kationen] (OH, etc.):RO4 > 1:1 und < 2:1
10:Rockbridgeit-Gruppe

Lapis Classification

VII/B.10-020

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
10: Mittelgroße Kationen: Mg-Mn-Fe-Cu-Zn

Classification by Hölzel

8.BE.210

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
E: Phosphates, C medium, V:2,3
2: Orthorhombic

Dana 8th edition

41.09.02.02

41: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
09: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen where (A B)5 (XO4)3 Zq
02: Rockbridgeite Group

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Rockbridgeite group

Optical Properties

Color

braun, braun grün, bräunlichschwarz, grünschwarz, dunkelgrün

Streak color

bräunlich grau

Diaphaneity (Transparency)

teilweise durchscheinend

max. Birefringence

0.033

Birefringence chart\! Frondelite title=Birefringence chart Frondelite

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

1.860

RI value β

1.880

RI value γ / ε

1.893

Ri mean

1.878

2V angle

Biaxial (-) 75°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

63

Space Group

Bbmm

Cell parameters a (Å)

13.89

Cell parameters b (Å)

17.01

Cell parameters c (Å)

5.21

Cell parameters a/b or c/a

0.817

Cell parameters c/b

0.306

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

1230.961

X-Ray Powder Diffraction

3.61(40),
3.381(50),
3.195(100),
3.045(30),
2.779(30),
2.444(30),
1.979(30),
1.598(50)

XRD chart Frondelite

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)

4.5

VHN (Hardness Vickers)

280 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.476

3.498 ( ρ calc. Mineralienatlas )

Instability

+++ HCl, - HNO3, H2SO4

Preface

Author (Name, Year)

Lindberg, 1949

References

Handbook of Mineralogy (Anthony et al.), 4 (2000), 198

IMA group assignments


 
 
(Fe3+0.670.33)2(Fe3+)3(PO4)3(OH)4(H2O)
orthorhombisch
Bbmm

 
 
(Fe2+,Mn2+)2(Fe3+)3(PO4)3(OH)4(H2O)
orthorhombisch
Bbmm

 
 
Mn2+Fe3+4(PO4)3(OH)5
orthorhombisch
Bbmm

 
 
Mn2+Fe3+3(PO4)3(OH)4(H2O)
monoklin
P21/m

 
 
ZnFe3+4(PO4)3(OH)5
orthorhombisch
Cmcm

 
 
(Fe2+,Mn)Fe43+(PO4)3(OH)5
orthorhombisch
Bbmm

Refresh list

Actuality: 01. Mar 2024 - 07:28:09

Other languages

German

Frondelit

Spanish

Frondelita

English

Frondelite

French

Frondelite

Russian

Фронделит

Simplified Chinese

锰绿铁矿

Japanese

フロンデル石

Alternative Name

Simplified Chinese

锰磷铁矿

CNMNC symbol

Symbol

Fnd

Locations with GPS information

IDs

GUSID (Global unique identifier short form) hA7EMSX8T061id6id6EF1g
GUID (Global unique identifier) 31C40E84-FC25-4E4F-B589-DEA277A105D6
Database ID 1299