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Ferrokinoshitalite (Ferrokinoshitalit)

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Ferrokinoshitalit
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Ferrokinoshitalit
schwarzer Kristall von Ferrokinoshitalit, Gun Claim, Wilson Lake, Itsi Mountain, Yukon, Kanada; BB ~ 3 mm, analysiert
Copyright: mintreasure.com; Contribution: openpit
Location: Kanada/Yukon-Territorium/Watson Lake Mining District/Itsi Mt./Wilson Lake/Gun Claim
Mineral: Ferrokinoshitalite
Image: 1672398250
License: Usage for Mineralienatlas project only
Ferrokinoshitalit

schwarzer Kristall von Ferrokinoshitalit, Gun Claim, Wilson Lake, Itsi Mountain, Yukon, Kanada; BB 3 mm, analysiert

Copyright: mintreasure.com
Contribution: openpit 2022-12-30
Locality: Gun Claim / Wilson Lake / Itsi Mt. / Watson Lake Mining District / Yukon-Territorium / Kanada

Collectors Summary

Color dunkelgrün
Streak color grün
Lustre Glasglanz
Hardness (Mohs) 3
Cleavages vollkommen {001}
Fracture keiner
Solubility +++ H2SO4, HF - HCl
Crystal System monoklin, C2/m

Chemism

Chemical formula

Ba(Fe2+,Mg)3[(OH,F)2|Al2Si2O10]

Chemical composition

Aluminium, Barium, Eisen, Magnesium, Silicium, Fluor, Sauerstoff, Wasserstoff

Unit weight: 586.346898525 u; Number of atoms in the formula: 21.5

Info

Empirical formula:

Ba(Fe0.75Mg0.25)3[((OH)0.75F0.25)2Al2Si2O10]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.26

1.5

6.98

1.0079470

1.5119205

Oxygen

O

31.38

11.5

53.49

15.9994300

183.9934450

Fluorine

F

1.62

0.5

2.33

18.9984033

9.4992016

Magnesium

Mg

3.11

0.75

3.49

24.3050600

18.2287950

Aluminium

Al

9.20

2

9.30

26.9815382

53.9630764

Silicon

Si

9.58

2

9.30

28.0855300

56.1710600

Iron

Fe

21.43

2.25

10.47

55.8452000

125.6517000

Barium

Ba

23.42

1

4.65

137.3277000

137.3277000

Strunz 9th edition incl. updates

9.EC.35

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
C: Schichtsilikate (Phyllosilikate) mit Glimmer Tafeln, zusammengesetzt aus tetrahedralen oder octahedralen Netzen
35:Clintonit-Gruppe

Lapis Classification

VIII/H.12-035

VIII: SILIKATE
H: Schichtsilikate
12: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Glimmer-Gruppe; Sprödglimmer (Margarit-Reihe)

Classification by Hölzel

9.EE.150

9: SILICATES
E: Phyllosilicates
E: ~[(OH)2|Al2Si2O10] Margarite-Group

IMA status

anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Mica group  ⇒ Brittle micas

Optical Properties

Color

dunkelgrün

Streak color

grün

Lustre

Glasglanz

RI value β

1.680

Ri mean

1.680

2V angle

Biaxial (-) 20°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

5.389

Cell parameters b (Å)

9.337

Cell parameters c (Å)

10.054

Cell parameters a/b or c/a

0.577

Cell parameters c/b

1.077

Cell parameters α

90°

Cell parameters β

100.53

Cell parameters γ

90°

Z

2

Volumne (ų)

497.369

X-Ray Powder Diffraction

3.655(10),
2.651(100),
2.447(10),
2.176(40),
1.659(20),
1.551(30),
1.529(20),
1.520(10)

XRD chart Ferrokinoshitalite

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)

3

VHN (Hardness Vickers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.59 (berechnet)

3.915 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen {001}

Fracture

keiner

Tenacity

spröde

Instability

+++ H2SO4, HF - HCl

Preface

Author (Name, Year)

Guggenheim & Frimmel, 1999

References

Guggenheim, S. and Frimmel, H.E. (1999) Ferrokinoshitalite, a new species of brittle mica from the Broken Hill mine, South Africa: structural and mineralogical characterization - Canadian Mineralogist 37, 1445-1452.

American Mineralogist 85 (2000), 1561.

IMA group assignments

Other languages

Spanish

Ferrokinoshitalita

English

Ferrokinoshitalite

French

Ferrokinoshitalite

German

Ferrokinoshitalith

Russian

Феррокиноситалит

Alternative Name

German

Ferrokinoshitalit

CNMNC (IMA)-Number

IMA 1999-026

CNMNC symbol

Symbol

Fkns

Locations with GPS information