Définitions
1.NounA monoclinic-prismatic mineral containing aluminum, calcium, hydrogen, magnesium, oxygen, silicon, sodium, and titanium.
2.Noun↑
, Leake, Bernard E., et al. "Nomenclature of Amphiboles: Report of the Subcommittee on
Amphiboles of the International Mineralogical Association,
Commission on New Minerals and Mineral Names". The Canadian Mineralogist 35 (1997): 235.