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Ferro-fluoro-leakeite

A discredited species name
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07925900017271924458524.jpg
Bernard Elgey Leake
Formula:
NaNa2(Fe2+2Al2Li)(Si8O22)F2
The Leakeite group minerals are sodium amphiboles defined with:
A(Na+K+2Ca)> 0.5 apfu,
C(Al+Fe3++2Ti) > 1.5 apfu and
CLi > 0,5 apfu

Ferro-fluoro-leakeite is defined with
A position: Na dominant
C2+ position: Fe dominant
C3+ position: Al dominant
W position: F dominant
Name:
Ferro-fluoro-leakeite was first published as a new mineral by Hawthorne et.al (1996). The Leakeite group minerals was redefined in the 2012 amphibole nomenclature and the mineral described by Hawthorne et.al (1996) is now named ferro-ferri-fluoro-leakeite. The series root name was named in 1992 by Frank Christopher Hawthorne, Roberta Oberti, Luciano Ungaretti, and Joel Dennison Grice in honor of Scottish geologist Bernard Elgey Leake [1932-], University of Glasgow and who was chairman of the IMA subcommitte to revise amphibole nomenclature. The chemical suffix designates the chemical relationship in the series.
This page provides mineralogical data about Ferro-fluoro-leakeite.


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Unique IdentifiersHide

Mindat ID:
43506
Long-form identifier:
mindat:1:1:43506:2

Similar NamesHide

Ferri-fluoro-leakeiteA valid IMA mineral species{Na}{Na2}{Mg2Fe23+Li}(Si8O22)F2

IMA Classification of Ferro-fluoro-leakeiteHide

Discredited

Chemistry of Ferro-fluoro-leakeiteHide

Mindat Formula:
NaNa2(Fe2+2Al2Li)(Si8O22)F2

The Leakeite group minerals are sodium amphiboles defined with:
A(Na+K+2Ca)> 0.5 apfu,
C(Al+Fe3++2Ti) > 1.5 apfu and
CLi > 0,5 apfu

Ferro-fluoro-leakeite is defined with
A position: Na dominant
C2+ position: Fe dominant
C3+ position: Al dominant
W position: F dominant
Element Weights:
Element% weight
O41.109 %
Si26.241 %
Fe13.044 %
Na8.055 %
Al6.302 %
F4.438 %
Li0.811 %

Calculated from ideal end-member formula.

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Ferro-fluoro-leakeite associated with TainioliteKLiMg2(Si4O10)F2
1 photo of Ferro-fluoro-leakeite associated with AegirineNaFe3+Si2O6

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Ferro-fluoro-leakeiteHide

References for Ferro-fluoro-leakeiteHide

Localities for Ferro-fluoro-leakeiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Brazil
 
  • Minas Gerais
    • Poços de Caldas
Azzi (2019)
Azzi (2019)
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