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  2. Bone char - Wikipedia

    en.wikipedia.org/wiki/Bone_char

    Bone char (Latin: carbo animalis) is a porous, black, granular material produced by charring animal bones. Its composition varies depending on how it is made; however, it consists mainly of tricalcium phosphate (or hydroxyapatite ) 57–80%, calcium carbonate 6–10% and carbon 7–10%. [ 1 ]

  3. Bone meal - Wikipedia

    en.wikipedia.org/wiki/Bone_meal

    Bone meal (or bonemeal) is a mixture of finely and coarsely ground animal bones and slaughter-house waste products. [1] It is used as a dietary supplement to supply calcium and phosphorus to monogastric livestock in the form of hydroxyapatite. As a slow-release organic fertilizer, it supplies phosphorus, calcium, and a small amount of nitrogen ...

  4. Conservation and restoration of bone, horn, and antler objects

    en.wikipedia.org/wiki/Conservation_and...

    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.

  5. Tsimshian - Wikipedia

    en.wikipedia.org/wiki/Tsimshian

    Today in Tsimshian culture, the potlatch is held to honour deaths, burials, and succession to name-titles. The Tsimshian have four different types of feasts. The feast system is the agency for social reproduction, expression of law, the transmission of knowledge, and demonstration of the obligations for chiefs to provide stewardship for ...

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  7. Masks among Eskimo peoples - Wikipedia

    en.wikipedia.org/wiki/Masks_among_Eskimo_peoples

    Archaeological masks have been found from early Paleo-Eskimo and from early Dorset culture period. [2] It is believed that these masks served several functions, including being in rituals representing animals in personalized form; [14] being used by shaman (medicine man or angakkuq) in ceremonies relating to spirits (as in the case of a wooden mask from southwestern Alaska); [15] it is also ...

  8. List of Wishbone episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Wishbone_episodes

    The kids try to save Jackson Park from developers who want to build a shopping center, destroying a historical oak tree in the process. First appearance of Mr. King and the Suitor Development Corporation. Book tie-ins: Wishbone Classics #2: The Odyssey, The Adventures of Wishbone #13: Homer Sweet Homer.

  9. Chamois leather - Wikipedia

    en.wikipedia.org/wiki/Chamois_leather

    The leather blends the charcoal more softly and cleanly than the artist's fingers, which can leave smudges. [17] The chamois is also used to lighten the drawing (or portions of it) by removing some charcoal in a more subtle and nuanced way than most erasers could. The charcoal can be washed from the leather using soap and water.