When I say it does not mount, I mean I start the VM and then it displays the gray loading screen with Apple logo in the center.
And then it forever loads but never boots up.
Workstation (and Player) don't know how to handle running Mac OS guests, even if the host hardware is genuine Apple-branded. We've had a few enquiries in the forums here in the past about whether we could support such a configuration, but as of now you're out of luck.
(Unfortunately it's much more complicated than merely checking that the host is a Mac and allowing things to proceed... there is additional hardware we need to emulate in order for a Mac OS guest to get to the login screen.)