See further under holmquistite. Actinolite is the amphibole other than holmquistite likely to be encountered at Foote. It too is characteristic of contact-zone areas but not as sharply and dramatically as the holmquistite. The actinolite makes fatter spl
Habit:
Splintery prismatic to blocky.
Colour:
Dark green, grey-green.
UV Fluorescence:
none
Quality of samples:
Rock forming mineral/non-crystalline/little interest for collectors.(##)
