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Potassic-ferri-leakeite

Pictures (1 Images total)

Kalium-Ferri-Leakeit
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Kalium-Ferri-Leakeit

bräunlicher Kristall von Kalium-Ferri-Leakeit, Kedykverpakhk Mountain, Lovozero, Kola, Russland; BB < 1 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-02-08
Locality: Kedykverpakhk, Berg / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color rötlichbraun
Streak color bräunlichgelb
Hardness (Mohs) 5.50 - 6.00
Cleavages vollkommen (110)
Fracture uneben
Crystal System monoklin, C2/m

Chemism

Chem­ical formula

KNa2Mg2Fe3+2LiSi8O22(OH)2

Addi­tional chem. informa­tion

A Position: K dominant
C2+ Position: Mg dominant
C3+ Position: Fe dominant
W Position: (OH) dominant

Chem­ical com­po­si­tion

Eisen, Lithium, Magnesium, Natrium, Silicium, Kalium, Sauerstoff, Wasserstoff

Unit weight: 863.0060244 u; Number of atoms in the formula: 42

Info

Empirical formula:

KNa2Mg2Fe2LiSi8O22(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.23

2

4.76

1.0079470

2.0158940

Lithium

Li

0.80

1

2.38

6.9412000

6.9412000

Oxygen

O

44.49

24

57.14

15.9994300

383.9863200

Sodium

Na

5.33

2

4.76

22.9897702

45.9795404

Magnesium

Mg

5.63

2

4.76

24.3050600

48.6101200

Silicon

Si

26.04

8

19.05

28.0855300

224.6842400

Potassium

K

4.53

1

2.38

39.0983100

39.0983100

Iron

Fe

12.94

2

4.76

55.8452000

111.6904000

Anal­y­sis wt%

SiO2 : 55.34, Al2O3 : 0.44, Fe2O3 : 9.45, V2O3 : 5.52, MgO : 7.23, MnO : 7.81, Li2O : 1.20, Na2O : 8.73, K2O : 3.10, H2O : 2.08 (Ref: J.Min.Petr.Sci.2002)

Strunz 9th edi­tion incl. updates

9.DE.25

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

Lapis Clas­sifica­tion

VIII/F.08-112

VIII: SILIKATE
F: Ketten- und Bandsilikate
8: Zweierbänder [Si4O11] 6-; Amphibol-Gruppe; Alkali-Amphibole

Clas­sifica­tion by Hölzel

9.DJ.740

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
J: Amphiboles; Sodic Amphiboles
7: Leakeite-Group

Dana 8th edi­tion

66.01.03b.09b

66: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2
01: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2 with P=2 amphibole configuration
03b: Group 3, the sodic-calcic amphiboles

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Sodium Amphiboles  ⇒ Leakeite (Lkt) amphiboles

Optical Properties

Color

rötlichbraun

Streak color

bräunlichgelb

Diaphane­ity (Trans­parency)

durchscheinend

max. Birefrin­gence

0.020

Birefringence chart\! Potassic-ferri-leakeite title=Birefringence chart Potassic-ferri-leakeite

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

1.672

RI value β

1.680

RI value γ / ε

1.692

Ri mean

1.681

2V angle

Biaxial (+) 79°c

Ori­enta­tion

Z = b, X ^ c = 37°

Pleochro­ism

gelblich braun zu rötlich braun

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

9.922

Cell param­e­ters b (Å)

17.987

Cell param­e­ters c (Å)

5.286

Cell param­e­ters a/b or c/a

0.552

Cell param­e­ters c/b

0.294

Cell param­e­ters α

90°

Cell param­e­ters β

104.7

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

912.498

X-Ray Pow­der Diffrac­tion

8.48(70),
4.50(90),
3.40(50),
3.16(70),
2.83(50),
2.74(40),
2.71(40),
2.53(100)

XRD chart Potassic-ferri-leakeite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5.50 - 6.00

VHN (Hard­ness Vick­ers)

499 (100g)

Density (g/cm³)

3.18 (berechnet)

3.141 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen (110)

Frac­ture

uneben

Tenac­ity

spröde

Preface

Author (Name, Year)

Matsubara & Miyawaki & Kurosawa & Suzuki, 2002

References

Journal of Mineralogical and Petrological Sciences (formerly Mineralogical Journal) 97 (2002), 177

IMA group assignments

Other languages

German

Kalium-Ferri-Leakeit

English

Potassic-ferri-leakeite

Russian

Калийликеит

Traditional Chinese

富鉀鋰鈉閃石

Simplified Chinese

富钾锂钠闪石

Japanese

カリリーク閃石

old name

German

Kaliumleakeit

Spanish

Potasio-leakeíta

French

Potassic-leakeite

Spanish

Potassicleakeita

English

Potassicleakeite

Alternative Name

Japanese

カリリーク閃石

Traditional Chinese

富鉀利克石

Simplified Chinese

富钾利克石

CNMNC (IMA)-Number

IMA 2001-049

CNMNC symbol

Symbol

Pflk

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

German pages

DeWikiPedia - search for: Kalium-Ferri-Leakeit
Google-Bilder-Suche - search for: Kalium-Ferri-Leakeit
Mineralienatlas.de (Forum) - search for: Kalium-Ferri-Leakeit

English pages

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

Russian pages

Webmineral.ru - search for: Калийликеит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Kalium-Ferri-Leakeit
Crystal-Treasure.com - search for: Kalium-Ferri-Leakeit
Bosse - search for: Kalium-Ferri-Leakeit
Edelsteine Neuburg - Gundolf Fischer - search for: Kalium-Ferri-Leakeit

Locations with GPS information