A new family of crystalline microporous silicometallophosphate designated SAPO-69 has been synthesized. These silicometallophosphate are represented by the empirical formula of: Rp+rMm+ExPSiyOz where M is an alkali metal such as potassium, R is an organoammonium cation such as ethyltrimethylammonium and E is a trivalent framework element such as aluminum or gallium. The SAPO-69 family of materials represent the first phosphate-based molecular sieves to have the OFF topology and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for separating at least one component.