It looks like to block in the Sip 'n Sew book by Diane Dhein. I does kind of look like prarie points but is actually a really easy block to make. I have also seen it as the main block on Amish totes and purses. She calls itThe Island star block. I have the book. PM me.

Here is a link to Kaye's pattern. It is using her 'View and Do' and 'Starmaker' rulers. They look hard but are very easy!

http://www.kayewood.com/item/Seasona...attern/380/c64