A series between Actinolite
Tremolite is defined as having an Mg/ (Mg+Fe2+) ratio ≥ 0.9; actinolite has a ratio of 0.5–0.9 and ferro-actinolite has a ratio of less than 0.5.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
||Peter Roegner (EPMA) - http://forum.amiminerals.org/viewtopic.php?f=3&t=4606|
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