Leakeite

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

Leakeite is defined with
A position: Na dominant
C²⁺ position: Mg dominant
C³⁺ position: Al dominant
W position: (OH) dominant

Leakeite Root Name Group > Sodium Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup

Leakeite was first published as a new mineral by Hawthorne et.al (1992). The Leakeite group minerals was redefined in the 2012 amphibole nomenclature. The mineral described by Hawthorne et.al (1992) is now named ferri-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 prefix designates the chemical relationship in the series.