Pegmatite rock with apatite crystals and pyrite?

fuss

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Found it protruding from a collapsing bluff along the Lake Michigan shoreline in SE Wi. Ok so the green mineral's have a white streak and have a hardness of 5, but interestingly they also seem to have dark inclusions in them (if you expand images 2 and 3 you will see this as well as the Pyrite? in image 3). If its not apatite what other options are there? same goes for the supposed pyrite. Thx.

green mineral rock2.webp

green mineral.webp

green mineral rock.webp
 

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Looks like some kind of amphibole, or a partially saussuritized (hydrothermally altered) plagioclase feldspar (altered partially to epidote).

Could be something else entirely, but that is the most likely. Definitely not apatite though :)
 

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You have to make a thin section to know on this type of rock...
 

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