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Yofortierite (Yofortierit)

Pictures (9 Images total)

Yofortierit
Views (File:
1165663195
): 1238
Yofortierit
Bildbreite: 3 mm; Fundort Mont Saint-Hilaire, Quebéc, Kanada
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire/Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry)
Mineral: Yofortierite
Image: 1165663195
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Yofortierit

Bildbreite: 3 mm; Fundort Mont Saint-Hilaire, Quebéc, Kanada
Copyright: Stephan Wolfsried
Contribution: Hg 2006-12-09
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec, Provinz / Kanada
nadeliger brauner Yofortierit (visuell bestimmt) mit Makatit
Views (File:
1587463341
): 441
nadeliger brauner Yofortierit (visuell bestimmt) mit Makatit
Namibia/Khomas, Region/Windhoek-Land, Kreis/Aris/Aris-Steinbrüche (Ariskop Quarry; Railway Quarry), BB = 5,0 mm
Copyright: husi; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A041960, Donator: Rudolf Berrenrath
Location: Namibia/Khomas, Region/Windhoek-Land, Kreis/Aris/Aris-Steinbrüche (Ariskop Quarry; Railway Quarry)
Mineral: Yofortierite
Image: 1587463341
License: Usage for Mineralienatlas project only
nadeliger brauner Yofortierit (visuell bestimmt) mit Makatit (SNr: A041960)

Namibia/Khomas, Region/Windhoek-Land, Kreis/Aris/Aris-Steinbrüche (Ariskop Quarry; Railway Quarry), BB = 5,0 mm
Collection: Lithothek der Münchener Micromounter
Copyright: husi
Contribution: Münchener Micromounter 2020-04-21
Locality: Aris-Steinbrüche (Ariskop Quarry; Railway Quarry) / Aris / Windhoek-Land, Kreis / Khomas, Region / Namibia
Yofortierit von Playa Paraiso, Teneriffa
Views (File:
1621615219
): 260
Yofortierit von Playa Paraiso, Teneriffa
Gelbbraune nadelige Kristalle verdrängen ein unbekanntes Mineral in Nephelin-Syenit. Bildbreite 2,5mm
Copyright: Kurt Rüsenberg; Contribution: humboldt
Collection: humboldt
Location: Spanien/Kanarische Inseln/Teneriffa/Adeje, Municipio/Playa Paraiso
Mineral: Yofortierite
Rock: nepheline-syenite
Image: 1621615219
License: Usage for Mineralienatlas project only
Yofortierit von Playa Paraiso, Teneriffa

Gelbbraune nadelige Kristalle verdrängen ein unbekanntes Mineral in Nephelin-Syenit. Bildbreite 2,5mm
Collection: humboldt
Copyright: Kurt Rüsenberg
Contribution: humboldt 2021-05-21
Locality: Playa Paraiso / Adeje, Municipio / Teneriffa / Kanarische Inseln / Spanien
Multiphasenparagenese in Nephelin-Syenit von Playa Paraiso, Teneriffa
Views (File:
1621616004
): 571
Multiphasenparagenese in Nephelin-Syenit von Playa Paraiso, Teneriffa
Vergesellschaftet in einer Anorthoklas-Matrix sind grüner Fluorarfvedsonit (FARF) und gelber Marsturit (MRS) mit rotem Namansilit (NAM), grauem Pyrolusit (PYL) und braunem Yofortierit (YOF) Bildbreite 2mm
Copyright: Kurt Rüsenberg; Contribution: humboldt
Collection: humboldt
Location: Spanien/Kanarische Inseln/Teneriffa/Adeje, Municipio/Playa Paraiso
Mineral: Anorthoclase, Arfvedsonite, Marsturite, Namansilite, Pyrolusite, Yofortierite
Rock: nepheline-syenite
Image: 1621616004
License: Usage for Mineralienatlas project only
Multiphasenparagenese in Nephelin-Syenit von Playa Paraiso, Teneriffa

Vergesellschaftet in einer Anorthoklas-Matrix sind grüner Fluorarfvedsonit (FARF) und gelber Marsturit (MRS) mit rotem Namansilit (NAM), grauem Pyrolusit (PYL) und braunem Yofortierit (YOF) Bildbre...
Collection: humboldt
Copyright: Kurt Rüsenberg
Contribution: humboldt 2021-05-21
Locality: Playa Paraiso / Adeje, Municipio / Teneriffa / Kanarische Inseln / Spanien
Yofortierit von Plya Paraiso, Teneriffa
Views (File:
1621687938
): 205
Yofortierit von Plya Paraiso, Teneriffa
Rotbraune stängelige Kristalle in Nephelin-Syenit. Weiterhin Villiaumit als rotes Mineralhaufwerk. Bildbreite 2mm
Copyright: Kurt Rüsenberg; Contribution: humboldt
Collection: humboldt
Location: Spanien/Kanarische Inseln/Teneriffa/Adeje, Municipio/Playa Paraiso
Mineral: Yofortierite
Image: 1621687938
License: Usage for Mineralienatlas project only
Yofortierit von Plya Paraiso, Teneriffa

Rotbraune stängelige Kristalle in Nephelin-Syenit. Weiterhin Villiaumit als rotes Mineralhaufwerk. Bildbreite 2mm
Collection: humboldt
Copyright: Kurt Rüsenberg
Contribution: humboldt 2021-05-22
Locality: Playa Paraiso / Adeje, Municipio / Teneriffa / Kanarische Inseln / Spanien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color violett braun, hellviolett, rosa
Streak color hellrosa
Lustre Seidenglanz
Hardness (Mohs) 2.5
Crystal System monoklin,

Chemism

Chemical formula

Mn2+5Si8O20(OH)2·7H2O

Chemical composition

Mangan, Silicium, Sauerstoff, Wasserstoff

Unit weight: 979.4851115 u; Number of atoms in the formula: 58

Info

Empirical formula:

Mn5Si8O20(OH)2·7H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.65

16

27.59

1.0079470

16.1271520
Oxygen

O

47.37

29

50.00

15.9994300

463.9834700
Silicon

Si

22.94

8

13.79

28.0855300

224.6842400
Manganese

Mn

28.04

5

8.62

54.9380499

274.6902495

Analysis wt%

SiO2 : 48.44, Al2O3 : 1.49, MnO : 28.41, MgO : 2.35, CaO : 0.90, ZnO : 1.10, H2O : 17.22 (Ref: Canadian Mineralogist 75)

Strunz 9th edition incl. updates

9.EE.20

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
E: Einfache tetrahedrale Netze aus sechsfach-Ringen, verbunden über octahedrale Netze oder Bänder
20:Palygorskit-Gruppe

Lapis Classification

VIII/H.33-030

VIII: SILIKATE
H: Schichtsilikate
33: Schichtsilikate mit anderen Einfachschichten [Si6O15] 6- u.a.

Classification by Hölzel

9.EQ.120

9: SILICATES
E: Phyllosilicates
Q: Palygorskite-Sepiolite-Group

Hey's Chemical Index of Minerals

14.17.10

14: Silicates not Containing Aluminum
17: Silicates of Mn

Dana 8th edition

74.03.01a.03

74: Phyllosilicates Phyllosilicate Modulated Layers
03: Phyllosilicates Phyllosilicate Modulated Layers with joined strips
01a: Palygorskite-sepiolite group (Palygorskite subgroup)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Palygorskite group

Optical Properties

Color

violett braun, hellviolett, rosa

Streak color

hellrosa

Diaphaneity (Transparency)

transparent, durscheinend, opak

Lustre

Seidenglanz

max. Birefringence

0.029
Birefringence chart\! Yofortierite title=Birefringence chart Yofortierite

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

1.530

RI value γ / ε

1.559

2V angle

Biaxial

Orientation

X ^ Faserachse = 8°

Absorption

Maximum ⊥ zur Länge der Faser

Crystallography

Crystal System

monoklin

Cell parameters a (Å)

12.759

Cell parameters b (Å)

18.369

Cell parameters c (Å)

5.024

Cell parameters a/b or c/a

0.695

Cell parameters c/b

0.274

Cell parameters α

90°

Cell parameters β

91.98

Cell parameters γ

90°

Z

2

Volume (ų)

1176.772

Crystal structure

Frank C. Hawthorne, Yassir A. Abdu, Kimberly T. Tait, Malcolm E. Back: The crystal structure of yofortierite. Can Mineral Vol. 51, Nr. 2 (2013) S. 243-251.

X-Ray Powder Diffraction

10.5(100),
4.41(20),
3.680(10),
3.302(90),
2.621(30),
2.526(10),
2.510(20),
1.564(10)
XRD chart Yofortierite

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)

2.5

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.82 (berechnet) 2.18 (gemessen)

2.764 ( ρ calc. Mineralienatlas )

Tenacity

elastisch

(Co-)Type locality

(Co-)Type locality

Kanada/Québec, Provinz/Montérégie, Region/La Vallée-du-Richelieu RCM/Mont Saint-Hilaire

Type material

École Polytechnique, Montreal, Kanada

Royal Ontario Museum, Toronto, Kanada

Canadian Museum of Nature, Ottawa, Kanada

National Museum of Natural History, Washington, D.C., USA

The Natural History Museum, London, England

University of Paris, Paris, Frankreich

Museum of Natural History, Paris, Frankreich

National School of Mines, Paris, Frankreich

Collection number of type material

13017 (École Polytechnique); M33627 (Royal Ontario Museum); 131952 (National Museum of Natural Histo

Preface

Name from

Yves Fortier Oscar (1914 -), ehemaliger Direktor des Geological Survey von Kanada (1964 - 1972).

Author (Name, Year)

Perrault & Harvey & Pertsowsky, 1975

References

Canadian Mineralogist 13 (1975), 68

Canadian Mineralogist 51 (2013), 243

IMA group assignments

 
Palygorskite group
 
 
 

 
 
Palygorskite
(Mg,Al)2Si4O10(OH)·4H2O
monoklin
C2/m

 
 
Tuperssuatsiaite
Na2(Fe3+,Mn2+)3Si8O20(OH)2·4H2O
monoklin
C2/m

 
 
Unnamed (Na-Ca-Fe-Silicate-Hydrate)
NaCa(Fe2+,Al,Mn)5[Si8O19(OH)](OH)7·5H2O
triklin
P1

 
 
Windmountainite
☐Fe3+2Mg2Si8O20(OH)2⋅8H2O
monoklin
C2/m

 
 
Yofortierite
Mn2+5Si8O20(OH)2·7H2O
monoklin
 

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Actuality: 11. May 2025 - 16:30:10

Other languages

German

Yofortierit

Spanish

Yofortierita

English

Yofortierite

French

Yofortierite

Russian

Йофортьерит

Traditional Chinese

錳坡縷石

Simplified Chinese

锰坡缕石

Alternative Name

German

Mn-Palygorskit

Mn-Palygorskit = Yofortierit

Greenland Geol. Surv., Bull. 190 (2001), 123-125.

Canadian Mineralogist Vol. 44, pp. 1557-1560 (2006)

German

Mn-Sepiolith

Mn-Sepiolith = Yofortierit

I.V. Pekov, pers. commun. (2005).

Canadian Mineralogist Vol. 44, pp. 1557-1560 (2006)

English

Mn-palygorskite

Mn-Palygorskit = Yofortierit

Greenland Geol. Surv., Bull. 190 (2001), 123-125.

Canadian Mineralogist Vol. 44, pp. 1557-1560 (2006)

English

Mn-sepiolite

Mn-Sepiolith = Yofortierit

I.V. Pekov, pers. commun. (2005).

Canadian Mineralogist Vol. 44, pp. 1557-1560 (2006)

Unnamed (MSH UK-31)

CNMNC (IMA)-Number

IMA 1974-045

CNMNC symbol

Symbol

Yof

Locations with GPS information

IDs

GUSID (Global unique identifier short form) pDyMUGOSIU2r07tAzDG01Q
GUID (Global unique identifier) 508C3CA4-9263-4D21-ABD3-BB40CC31B4D5
Database ID 4237