Is this calcite?

[Galenita]

I believe this is calcite, but just wanted to get other opinions. Milky white. Filling cracks in Mississippian (or maybe Pennsylvanian?) limestone in the Wasatch Mountains in Utah. That's my stubby toe in the second pic for scale.

Thanks in advance!

 

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[Red-Coat]

Certainly looks like it. Has a typical cleavage pattern for calcite.

 

[DDancer]

I'll second calcite.

 

[Galenita]

Thanks Red-Coat and DDancer!