Webster's Online Dictionary
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Specialty Definition: FERROACTINOLITE

DomainDefinition
MiningA monoclinic mineral, Ca2 (Fe2+ ,Mg)5 Si8 O 22 (OH)2 ; amphibole group; has Mg/(Mg+Fe2+ ) = 0 to 0.5; forms a series with tremolite and actinolite. Formerly calledferrotremolite. (references)

Source: compiled by the editor from various references; see credits.

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