Hanging Hammer on Instagram: "Onyx installation You are going to see how to install a back lit onyx keeping all the technicalities in mind. Onyx is one the most delicate stones and special care needs to be ensured for a successful backlit installation. We choose the Swarovski Crystal Onyx which has its beautiful natural crystal sheen Here are the steps which we followed to finally get this fabulous outcome 1. Cut the onyx in size as per the design 2. Created Plywood panelling with pasting white