Summarize the following:
Cleaners and turquoise generally don't mix. Turquoise is very susceptible to damage and discoloration. Even mild dishwashing detergent can damage the stone. Stick to using a damp rag. Remove any unwanted dirt or grime. Use gentle motions to avoid damage. If your turquoise is very dirty, this may take some time. However, do not dip turquoise in water to speed up the process. This can harm the gem. Gently dab any excess water from the turquoise. Letting water sit on the turquoise can harm the gem, so it's vital to get it dry after cleaning. Never air dry turquoise or use heat to speed up the process.

Summary:
Dampen a cloth with water. Wipe down the stone. Dry your jewelry with a clean cloth.