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Ferro-katophorite

Pictures (3 Images total)

Ferro-Katophorit
Views (File:
1583167263
): 326
Ferro-Katophorit
grünliche Spaltaggregate von Ferro-Katophorit, Kipawa, Les Lacs-du-Témiscamingue, Québec, Kanada; BB ~ 1 mm
Copyright: Joy Desor; Contribution: openpit
Location: Kanada/Québec/Abitibi-Témiscamingue, Region/Témiscamingue, RCM/Les Lacs-du-Témiscamingue/Kipawa-Komplex
Mineral: Ferro-katophorite
Image: 1583167263
License: Usage for Mineralienatlas project only
Ferro-Katophorit

grünliche Spaltaggregate von Ferro-Katophorit, Kipawa, Les Lacs-du-Témiscamingue, Québec, Kanada; BB 1 mm
Copyright: Joy Desor
Contribution: openpit 2020-03-02
Locality: Kipawa-Komplex / Les Lacs-du-Témiscamingue / Témiscamingue, RCM / Abitibi-Témiscamingue, Region / Québec / Kanada
prismatischer schwarzer Ferrokatophorit
Views (File:
1606730793
): 196
prismatischer schwarzer Ferrokatophorit
Portugal/Azoren (Ilhas dos Açores), Autonome Region/Sao Miguel, Insel/Lagoa, Kreis/Água de Pau Vulkan/Lagoa de Fogo/Lombadas, BB = 2,0 mm
Copyright: husi; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A043126, Donator: anatase2
Location: Portugal/Azoren (Ilhas dos Açores), Autonome Region/Sao Miguel, Insel/Lagoa, Kreis/Água de Pau Vulkan/Lagoa de Fogo/Lombadas
Mineral: Ferro-katophorite
Image: 1606730793
License: Usage for Mineralienatlas project only
prismatischer schwarzer Ferrokatophorit (SNr: A043126)

Portugal/Azoren (Ilhas dos Açores), Autonome Region/Sao Miguel, Insel/Lagoa, Kreis/Água de Pau Vulkan/Lagoa de Fogo/Lombadas, BB = 2,0 mm
Collection: Lithothek der Münchener Micromounter
Copyright: husi
Contribution: Münchener Micromounter 2020-11-30
Locality: Lombadas / Lagoa de Fogo / Água de Pau Vulkan / Lagoa, Kreis / Sao Miguel, Insel / Azoren (Ilhas dos Açores), Autonome Region / Portugal
Ferro-Katophorit
Views (File:
1620917324
): 138
Ferro-Katophorit
Agua de Pau Vulkan, Azoren; Bb 5 mm.
Copyright: Guy Heinen; Contribution: guyhein
Collection: Guy Heinen
Location: Portugal/Azoren (Ilhas dos Açores), Autonome Region/Sao Miguel, Insel/Lagoa, Kreis/Água de Pau Vulkan
Mineral: Ferro-katophorite
Image: 1620917324
License: Usage for Mineralienatlas project only
Ferro-Katophorit

Agua de Pau Vulkan, Azoren; Bb 5 mm.
Collection: Guy Heinen
Copyright: Guy Heinen
Contribution: guyhein 2021-05-13
Locality: Água de Pau Vulkan / Lagoa, Kreis / Sao Miguel, Insel / Azoren (Ilhas dos Açores), Autonome Region / Portugal

Collectors Summary

Color schwarz, grünlichschwarz, bläulichschwarz
Lustre Glasglanz
Crystal System monoklin, C2/m

Chemism

Chem­ical formula

Na(NaCa)(Fe2+4Al)(Si7Al)O22(OH)2

Chem­ical com­po­si­tion

Aluminium, Calcium, Eisen, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 946.0027408 u; Number of atoms in the formula: 42

Info

Empirical formula:

Na(NaCa)(Fe4Al)(Si7Al)O22(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.21

2

4.76

1.0079470

2.0158940
Oxygen

O

40.59

24

57.14

15.9994300

383.9863200
Sodium

Na

4.86

2

4.76

22.9897702

45.9795404
Aluminium

Al

5.70

2

4.76

26.9815382

53.9630764
Silicon

Si

20.78

7

16.67

28.0855300

196.5987100
Calcium

Ca

4.24

1

2.38

40.0784000

40.0784000
Iron

Fe

23.61

4

9.52

55.8452000

223.3808000

Strunz 9th edi­tion incl. updates

9.DE.20

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
E: Ketten- und Bandsilikate mit 2-periodischen Doppelketten, Si4O11; Amphibol-Familie, Klinoamphibole
20:

Lapis Clas­sifica­tion

VIII/F.09-050

VIII: SILIKATE
F: Ketten- und Bandsilikate
9: Zweierbänder [Si4O11] 6-; Amphibol-Gruppe; Na-Ca-Amphibole

Clas­sifica­tion by Hölzel

9.DI.420

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
I: Amphiboles; Sodiccalcic Amphiboles
4: Katophorite-Group

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Classification

 Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Sodium-calcium amphiboles  ⇒ Katophorite (Ktp) amphiboles

Optical Properties

Color

schwarz, grünlichschwarz, bläulichschwarz

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

Lus­tre

Glasglanz

max. Birefrin­gence

0.021
Birefringence chart\! Ferro-katophorite title=Birefringence chart Ferro-katophorite

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

1.639-1.690

RI value β

1.658-1.695

RI value γ / ε

1.660-1.700

Ri mean

1.674

2V angle

Biaxial (-) 0 - 50° (gemessen) 36° (berechnet)

Ori­enta­tion

Z = b

Dis­per­sion

Stark, r > v

Absorp­tion

Z > Y > X

Pleochro­ism

gelb, grün, braun

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

9.737

Cell param­e­ters b (Å)

17.875

Cell param­e­ters c (Å)

5.314

Cell param­e­ters a/b or c/a

0.545

Cell param­e­ters c/b

0.297

Cell param­e­ters α

90°

Cell param­e­ters β

104.64

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

894.867

Physical Properties

Density (g/cm³)

3.3 (gemessen) 3.31 (berechnet)

3.511 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Norwegen/Vestfold og Telemark, Provinz/Larvik/Hedrum/Lagendalen

References

LEAKE, B,E. - Nomenclature of amphiboles. Am. Mineral. 63 (1978), 1023-1052

LEAKE, B,E. WOOLLEY, A.R., ARPS, C.E.S., BIRCH, W.D., GILBERT,M.C., GRICE, J.D., HAWTHORNE, F.C., KATO, A.,KISCH, H.J., KRIVOVICHEV, V.G., LINTHOUT, K., LAIRD, J.,MANDARINO, J.A., MARESCH, W.V., NICKEL, E.H., ROCK,N.M.S., SCHUMACHER, J.C., SMITH, D.C., STEPHENSON,N.C.N., UNGARETTI, L., WHITTAKER, E.J.W. & GUO,YOUZHI - Nomenclature of amphiboles: report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names. Canadian Mineralogist 35 (1997), 219-246

Hawthorne, Frank C., and Roberta Oberti - On the classification of amphiboles: Canadian Mineralogist 44 (2006)(1), 1-21

Frank C. Hawthorne, Roberta Oberti, George E. Harlow, Walter V. Maresch, Robert F. Martin, John C. Schumacer, Mark D. Welch - Nomenclature of the amphibole supergroup, American Mineralogist, Volume 97 (2012), 2031–2048

IMA group assignments

Other languages

German

Ferro-Katophorit

English

Ferro-katophorite

Russian

Феррокатофорит

Alternative Name

Alumino-katophorite

German

Ferrokatophorit

Simplified Chinese

红钠闪石

Simplified Chinese

红闪石

Simplified Chinese

褐钠闪石

CNMNC symbol

Symbol

Foktp

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

German pages

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

English pages

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

Russian pages

 Webmineral.ru - search for: Феррокатофорит

Mineral Dealer

German pages

 hausen - Mineralgroßhandel - search for: Ferro-Katophorit
Crystal-Treasure.com - search for: Ferro-Katophorit
Bosse - search for: Ferro-Katophorit
Edelsteine Neuburg - Gundolf Fischer - search for: Ferro-Katophorit
Geolitho marketplace, by and for collectors - search for: Ferro-Katophorit

Locations with GPS information