July 21 (Reuters) - Prism Resources Inc PRS.V :
* Prism Resources Inc. agreement in respect of the sale of a 7.5% net profits interest not proceeding
* Co, AuRico received a written communication from Detour claiming royalty is " invalid and unenforceable against Detour"
* Its agreement with AuRico to sell to AuRico its 7.5% net profit interest in Aurora and Sunday Lake Properties has been terminated