You're trying to use an Android-specific URI on iOS -- which won't work, as you've discovered.
How are you getting this URI in the first place? Are you using the cordova-plugin-contacts plugin? As far as displaying the contact information, AFAIK you'll have to build the UI yourself (on iOS).
I have found in some forum, and I am sure there must be some way to call IOS Existing Contact Data Card as I am already doing in Android, so I would invite some one expert in phonegap if they can help in this issue.