A sea shell is extremely delicate and how to polish it is often a two-step process that involves both grinding and polishing. Due to the delicate nature of sea shells, grinding is not recommended.

For most other shells, including clam shells, spiny oyster shells, cone snails, sea snails and conch shells, use a bleach solution to disinfect your shells and remove the remaining periostracum. 75 percent water and 25 percent bleach works well, but if yo

How to Polish Abalone Shells. Abalone shells, also called Paua shells in other countries, are known for their vibrant turquoise, blue, and green colors. Over time, these shells can get covered with build-up, which doesn't look very pretty....