Is it possible to add shine to my dull chocolate candies (blueberry clusters)?

I made dark chocolate blueberry clusters for a wedding party favor for my daughters wedding in Alaska.


I bought a 10# bag of chocolate chips at Costco. I used the microwave and melted the candy in a glass bowl a small batch at a time. I checked the chocolate every 15 to 30 seconds, stirring and rotating. I had laid out parchment paper ready.


When melted, I added dried blueberries, stirred again and dropped tablespoons (approximate) onto the parchment paper. They looked great when drying, shiny and all.


The next day the seemed to have lost their sheen, but looked reasonable. Come time to put them in cellophane bags, they had a turned a very dull color!


Is there any way to save the life of this chocolate candy? Time is of essence here!


I want them to be shiny again!