How to clean my Pegasus Sink

Hi All, I just bought a new black Pegasus sink from Home Depot. It is 80% Granite and 20% Acrylic, and I was wondering if anyone out there has any tips how to clean it. I used to use good ol' CLR on my old sinks, but am thinking that that might be a bit too harsh for the new one. Any suggestions?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.