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Ferroleakeite

Collectors Summary

Crystal System

monoklin, C2/m

Chemism

Chemical formula

[Na][Na₂][Fe²⁺₂Fe³⁺₂Li][(OH)₂|Si₈O₂₂]

Chemical composition

Eisen, Lithium, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 909.9777646 u; Number of atoms in the formula: 42

Info

Empirical formula:

[Na][Na₂][Fe₂Fe₂Li][(OH)₂Si₈O₂₂]

Element	Symbol	Weight%	Atoms	Atoms%	Atom weight (u)	Sum weight (u)
Hydrogen	H	0.22	2	4.76	1.0079470	2.0158940
Lithium	Li	0.76	1	2.38	6.9412000	6.9412000
Oxygen	O	42.20	24	57.14	15.9994300	383.9863200
Sodium	Na	7.58	3	7.14	22.9897702	68.9693106
Silicon	Si	24.69	8	19.05	28.0855300	224.6842400
Iron	Fe	24.55	4	9.52	55.8452000	223.3808000

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Analysis wt%

SiO₂ : 52.82, Fe₂O₃ : 17.55, FeO : 15.79, Na₂O : 10.22, Li₂O : 1.64, H₂O : 1.98 (Ref: berechnet)

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.08-114

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

Classification by Hölzel

9.DJ.720

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

Dana 8th edition

66.01.03c.12a

66: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2
01: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2 with P=2 amphibole configuration
03c: Group 4, the sodic amphiboles

IMA status

anerkannt, Name empfohlen Amphibol-Subkommittee (1997) für das Fe²⁺ Endglied der Leakeit-Serie

Mineral status

anerkanntes Mineral

Crystallography

Crystal System	monoklin
Class (H-M)	2/m
Space Group number	12
Space Group	C2/m
Cell parameters α	90°
Cell parameters γ	90°

Preface

Author (Name, Year)

Leake u.w., 1997

References

Canadian Mineralogist 35 (1997), 219.

Canadian Mineralogist 41 (2003), 1355.

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

Other languages

German	Ferroleakeit
Spanish	Ferroleakeita
English	Ferroleakeite

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

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