How to Cut & Polish Abalone Shells
Abalone, with shells similar to oysters, have been used to decorate the robes and turbans of royalty from ancient times. Abalone was often the "coin of the realm" in the era of barter and trade. Eight species are native to the west coast of North America: red, black, green, flat, corrugated, white, threaded and pinto. Abalone is found in many forms of jewelry, from baroque to formal, in many designs and styles. The Peristrum, a shellac-like outer covering, must be removed to expose the colorful bands created by genetic factors and the abalone's diet.
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Things You'll Need
- Abalone shells
- Copper sulfate
- Scrub brush
- Sand blaster
- Water
- Large pail
- Saw
- Drill
- Diamond edged dremel tools
- Respirators
- Fans
- Tumbler
Instructions
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1
Soak the abalone shells in copper sulfate to remove algae and parasitic infestations. Scrub, dry and sand blast the shells to ready them for cutting.
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2
Cut the shells under water using the various cutting tools to form the desired rough shapes. As the dust from the calcium carbonate in the shells can cause silicosis, you should wear a respirator and use fans for ventilation when cutting the shells.
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3
Place the cut shell parts into a tumbler for 24 to 72 hours using three changes of grit. Wash and buff the shells, either with a buffer or by hand, to bring the full luster to the surface.
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4
The shell pieces are now ready to be drilled or set to create an individual piece of jewelry.
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Tips & Warnings
Due to the extreme toxic nature of abalone, never work with the shells unless they are under a steady stream of water. If you become nauseated, stop immediately and get some fresh air.
The abalone has been placed on the "Endangered Species" list in Canada, with quantity and size limits placed on their harvest. As a result, abalone has become a costly jewelry source.
References
- Photo Credit paua shell - abalone image by pdtnc from Fotolia.com
