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Pyrophanite

Pictures (22 Images total)

Pyrophanit
Views (Image: 1252485149): 1847, Rating: 8.75
Pyrophanit

Bildbreite: 1,5 mm; Fundort: Big Rock Quarry (3M Quarry), Granite-Mountain-Komplex, Sweet Home, Pulaski Co., Arkansas, USA

Copyright: Stephan Wolfsried
Contribution: Hg 2009-09-09
Locality: Big Rock Quarry (3M Quarry) / Granite-Mountain-Komplex / Sweet Home / Pulaski Co. / Arkansas / USA
Pyrophanit-Ilmenit-Reihe
Views (Image: 1179604895): 1811
Pyrophanit-Ilmenit-Reihe

Bildbreite: 3 mm; Fundort: Laacher See-Vulkangebiet, Eifel, Deutschland

Copyright: Stephan Wolfsried
Contribution: Hg 2007-05-19
Locality: Laacher See / Brohltal, Verbandsgem. / Ahrweiler, Landkreis / Rheinland-Pfalz / Deutschland
Pyrophanit
Views (Image: 1272012332): 1538
Pyrophanit

Größe: 1,01 mm; Fundort: Grotta d'Oggi, San Piero in Campo, Campo nell'Elba,Insel Elba, Livorno, Toskana (Toscana), Italien

Copyright: Matteo Chinellato
Contribution: Hg 2010-04-23
Locality: Grotta d'Oggi / San Piero in Campo / Campo nell'Elba / Elba, Insel / Livorno, Provinz / Toskana (Toscana) / Italien
Pyrophanit
Views (Image: 1275217327): 608
Pyrophanit

Kristallgröße: 0,6 mm, Fundort: Gang Rosina, San Piero in Campo, Campo nell'Elba, Insel Elba, Livorno

Collection: Domenico Preite
Copyright: Enrico Bonacina
Contribution: thdun5 2010-05-30
Locality: Gang Rosina (Filone Rosina) / San Piero in Campo / Campo nell'Elba / Elba, Insel / Livorno, Provinz / Toskana (Toscana) / Italien
Pyrophanit
Views (Image: 1352041743): 962
Pyrophanit (SNr: A017266)

Oktaedrischer mattschwarzer Kristall, BB < 1 mm. Fundort: In den Dellen-Laacher See-Mendig-Eifel-Rheinland Pfalz.

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2012-11-04
Locality: In den Dellen (Grube Zieglowski) / Mendig, Verbandsgemeinde / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Pyrophanit
Views (Image: 1252485110): 1026
Pyrophanit

Bildbreite: 1 mm; Fundort: Big Rock Quarry (3M Quarry), Granite-Mountain-Komplex, Sweet Home, Pulaski Co., Arkansas, USA

Copyright: Stephan Wolfsried
Contribution: Hg 2009-09-09
Locality: Big Rock Quarry (3M Quarry) / Granite-Mountain-Komplex / Sweet Home / Pulaski Co. / Arkansas / USA

Collectors Summary

Color Blood rot, grün gelb, dunkelrot
Streak color ochre gelb
Hardness (Mohs) 5.5
Solubility + heiße HCl
Crystal System trigonal, R3

Chemism

Chem­ical formula

MnTiO3

Addi­tional chem. informa­tion

Lt. Strunz 9. Edition: auch zugehörig zur Ilmenit Serie

Chem­ical com­po­si­tion

Mangan, Titan, Sauerstoff

Unit weight: 150.8034399 u; Number of atoms in the formula: 5

Info

Empirical formula:

MnTiO3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

31.83

3

60.00

15.9994300

47.9982900

Titanium

Ti

31.74

1

20.00

47.8671000

47.8671000

Manganese

Mn

36.43

1

20.00

54.9380499

54.9380499

Anal­y­sis wt%

TiO2 : 50.49, MnO : 46.92, Fe2O3 : 1.16, SiO2 : 1.58, Sb2O3 : 0.48 (Ref: Dana, 7th ed. 1)

Strunz 9th edi­tion incl. updates

4.CB.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
C: Metall: Sauerstoff = 2: 3,3: 5, und vergleichbare
B: Mit mittelgroßen Kationen
05:Korund-Gruppe

Lapis Clas­sifica­tion

IV/C.05-030

IV: OXIDE
C: Oxide mit Verhältnis Metall : Sauerstoff = 2:3 (M2O3 und verwandte Verbindungen)
5: Ilmenit-Gruppe

Clas­sifica­tion by Hölzel

4.CD.130

4: OXIDES
C: R2O3 Sesquioxides
D: Ilmenite-Group

Dana 8th edi­tion

04.03.05.03

04: Oxide Minerals
03: Simple Oxides with a cation charge of 3+ (A+++2 O3)
05: Ilmenite Group

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Ilmenite-Pyrophanite Series
Ilmenite group

Optical Properties

Color

Blood rot, grün gelb, dunkelrot

Streak color

ochre gelb

Diaphane­ity (Trans­parency)

teilweise durchscheinend bis opak

max. Birefrin­gence

0.27

Birefringence chart\! Pyrophanite title=Birefringence chart Pyrophanite

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

2.481

RI value γ / ε

2.21

Ri mean

2.391

2V angle

Uniaxial (-)

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3

Space Group number

148

Space Group

R3

Cell param­e­ters a (Å)

5.140

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

14.290

Cell param­e­ters a/b or c/a

2.780

Cell param­e­ters c/b

-

Z

6

Volumne (ų)

326.956

X-Ray Pow­der Diffrac­tion

3.776(20),
2.785(100),
2.569(70),
2.262(30),
1.889(40),
1.747(40),
1.522(30),
1.484(30)

XRD chart Pyrophanite

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)

5.5

VHN (Hard­ness Vick­ers)

511 (50g)

Density (g/cm³)

4.5 - 4.53 / Durchschnittlich = 4.51

4.595 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+ heiße HCl

Preface

Author (Name, Year)

Hamberg, 1890

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 460

IMA group assignments


 
 
(Mg,Fe2+)SiO3
trigonal
R3

 
 
(Zn,Fe2+,Mn2+)TiO3
trigonal
R3

 
 
MgTiO3
trigonal
R3

 
 
FeSiO3
trigonal
R3

 
 
Fe2+TiO3
trigonal
R3

 
 
MnTiO3
trigonal
R3

 
 
FeCrO3
trigonal
R3

 
Fe2+TiO3-Mn2+TiO3
trigonal
 

 
 
Fe2+TiO3
trigonal
R3

 
 
MnTiO3
trigonal
R3

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Actuality: 20. May 2022 - 02:00:21

Other languages

Spanish

Pirofanita

German

Pyrophanit

English

Pyrophanite

French

Pyrophanite

Russian

Пирофанит

Simplified Chinese

红钛锰矿

Alternative Name

Pyrophanita

CNMNC symbol

Symbol

Pph

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

German pages

DeWikiPedia - search for: Pyrophanit
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Mineralienatlas.de (Forum) - search for: Pyrophanit

English pages

Mindat - search for: Pyrophanite
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Handbook-of-Mineralogy - search for: Pyrophanite
RRUFF - Raman, XRD and other mineral data - search for: Pyrophanite
RRUFF - References and PDF downloads - search for: Pyrophanite
American-Mineralogist-Crystal-Structure-Database - search for: Pyrophanite
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Russian pages

Webmineral.ru - search for: Пирофанит

Mineral Dealer

German pages

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Locations with GPS information