Need help with mineral ID

[KStateKing]

More Oklahoma Fluorescents. I was wondering what the greenish/grayish mineral inclusion might be (Calcite?). I've posted a number of pics in previous threads, but this is the first time I've seen this crystal formation in any of these rocks...
Regarding the fluorescent pics, The first is Longwave and the second is Shortwave...

 

Amazon Forum Fav 👍

A Handbook of Civil War Bullets and Cartridges - Grab it through Amazon!

[Molewacker]

Oh I love seeing these! Thanks for posting!

 

[DDancer]

Cubic fractures in the crystals are a give away in identifying Calcite. A simple hardness test should confirm it as calcite is quite soft. Some nice crystal there and cool fluorescence.