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Bone is also made of both mineral and carbon-based materials; the mineral-based are calcium, phosphorus, and fluoride; the carbon-based is the protein ossein. Bone also includes the mineral hydroxyapatite, "A calcium phosphate mineral which forms a hard outer covering over the collagen and protein matrix," [1] or organic material.
Bone, ivory, and antler are rarely attacked by insects, but horn is often seriously damaged by the larvae of carpet beetles and clothes moths. [7] Light, ultraviolet, and infrared. Ivory, bone, and antler should be kept away from bright light such as spotlights or direct sunlight. Bright light can increase the surface temperature of the object.
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 ...
These 50 printable pumpkin carving templates are ready to inspire you. On each image, click "save image as" and save the JPEGs to your computer desktop. From there, you can print them!
Easy Halloween pumpkin carving ideas can look impressive. Get out your carving tools and use our stencils and tutorials to make cool, creative jack-o'-lanterns. 90 Scary Easy Carving Ideas for ...
4. Punk Pumpkins. Add a little rock-n-roll edge to your pumpkins this Halloween! Paint each pumpkin one solid color and let dry. Then, hot glue flat-bottomed studs in the pattern of your choice.
Bone awls are pointed tips made on any bone splinter. Bone awls vary considerably in the amount of polish from wear, the method of preparation, and size. Bone awls tend to be classified according to the characteristics of the bone used to make the awl. Many bone awls retain an epiphysis, or rounded end of a bone. Although authors have differing ...
Both ivory and bone were carved in relief panels, often with two or three strips forming a single inlay. Only ivory was used for openwork. [7] After carving the surfaces were smoothed and lightly polished. Traces of colour survive, showing the use of alternating red and blue pigments, and the highlighting of plain backgrounds with red or black.