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The organic components in ivory is called ossein, which is decomposed by hydrolysis and after long-term exposure can cause the ivory to turn into a sponge-like substance. Even for cleaning purposes, water can damage ivory so it should be avoided. [8] Pollutants. Corroded metals and colored materials can stain ivory and should not be placed near ...
Like any museum objects, the handling of bone, antler, and horn should be conducted in a manner conducive to maintaining the health of the object. While these objects may be handled with clean, dry hands, body oils can stain their surface due to the porosity of these materials. This is especially noticeable on light-colored antler, horn, and bone.
Cleaning of human remains varies by type. If necessary, surface cleaning of bone can be done with a very mild detergent and water solution, but bones should never be soaked in order to prevent dirt from becoming embedded in pores. [2] The possibility of cleaning human remains is highly dependent on the fragility of the specimen.
Renaissance Wax is a brand of microcrystalline wax polish used in antique restoration and museum conservation around the world. Commonly used to polish and conserve metal objects, it is also used on gemstones and such organic materials as wood, ivory, and tortoiseshell. The product is sometimes used by reenactors to protect armor and weapons.
Polishing is the last step of the carving process. Sculptors use a variety of fine, abrasive materials such as sandpaper or emery paper to highlight patterns in the stone and to accentuate its natural sheen. [9] Some sculptors may also use tin oxide to achieve a high-lustre polish. Regardless of the method, however, a glossy marble sculpture ...
The Anglo-Saxon Franks Casket is a whale bone casket imitating earlier ivory ones. [4] Medieval bone caskets were made by the Embriachi workshop of north Italy (c. 1375 –1425) and others, mostly using rows of thin plaques carved in relief. [5] A face carved on a piece of curved bone. The face is framed by hair and part of a winged head-dress ...
If you thought teeth were only worth a couple bucks from the tooth fairy, think again. On a brand-new episode of "Antiques Roadshow" Monday, a Fred Myrick scrimshaw tooth got a price tag that ...
Lipids and fatty acids in the bone and in the fat tissues tend to stain the bone brown. Oxidising bleaches may be used to whiten the bone, but if too much is used the perchlorate or hypochlorite damages the bone tissue, leaving it chalky and brittle. Hydrogen peroxide at quite low concentrations, say 1% to 3% replenished every few days, is less ...