native metal

Examples of native metal in the following topics:

• Occurrence of Metals

  • A native metal is any metal that is found in its metallic form in nature, either pure or as an alloy.
  • Metals that can be found as native deposits singly and/or in alloys include antimony, arsenic, bismuth, cadmium, chromium, cobalt, indium, iron, nickel, selenium, tantalum, tellurium, tin, titanium, and zinc.
  • This is why only the less reactive metals such as gold and platinum are found as native metals.
  • Native metals were prehistoric man's only access to metal.
  • Describe the characteristics of metal alloys and the natural occurence of native metals.

• Extractive Metallurgy

  • Metal ores are generally oxides, sulfides and silicates of "native" metals (such as native copper) that are not commonly concentrated in the Earth's crust.
  • Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into a purer form.
  • In order to convert a metal oxide or sulfide to a purer metal, the ore must be reduced physically, chemically, or electrolytically.
  • Ore bodies often contain more than one valuable metal.
  • Additionally, a concentrate may contain more than one valuable metal.

• Titanium, Chromium, and Manganese

  • Titanium is a strong, lustrous transition metal.
  • Titanium metal has two very important and useful properties: it is resistant to corrosion and it has the highest strength-to-weight ratio of any metal.
  • Following this first discovery, small amounts of native (free) chromium metal have been discovered in rare minerals, but these are not used commercially.
  • Chromium metal has proven to be highly valuable due to its high corrosion resistance and hardness, particularly when steel is combined with metallic chromium to form stainless steel.
  • It is a metal with important industrial uses, particularly in stainless steels.

• Pre-European Hawaiian Art

  • Hawaiian art can be divided into pre-European art, non-native art, and art produced by Hawaiians incorporating western ideas.
  • Native Hawaiians had neither metal nor woven cloth.
  • Production of these styles of art continued after Cook's arrival, and a few craftsmen still produce traditional Hawaiian arts, either to sell to tourists or to preserve native culture.
  • Kapa is a fabric made by Native Hawaiians from the bast fibres of certain species of trees and shrubs.
  • Kapa is a kind of bark cloth, or fabric made by Native Hawaiians from the bast fibers of certain species of trees and shrubs.

• New France and the Native Americans

  • French traders in America quickly realized the economic benefits of working with Native Americans to exploit fur and timber exports.
  • The Native Americans helped them to hunt for food and to use the furs from their prey to keep warm during the winter months.
  • The fur trade allowed Native Americans access to metal tools that would make their lives easier.
  • There were both positive and negative aspects of the fur trade for the Native people.
  • The Native people began to rely on European goods, causing them to some extent to forget their original way of life before the use of metal goods.

• Silver

  • Silver has the highest electrical conductivity of any element and the highest thermal conductivity of any metal.
  • Silver is a soft, white, lustrous transition metal.
  • It has the highest electrical conductivity of any element and the highest thermal conductivity of any metal.
  • The metal occurs naturally in its pure, free form (native silver).
  • Alkaline solutions of silver nitrate can be reduced to silver metal by reducing sugars such as glucose.

• Arts of the Great Plains

  • Great Plains Native Americans are well known for their buffalo hide paintings, quillwork, and elaborate beadwork.
  • Ledger Art flourished from the 1860s to the 1920s and was named for the accounting ledger books that were a common source for paper for Plains Native Americans during the late 19th century.
  • Great Plains Native Americans are most well known for their beadwork, which dates back to 8800 BCE and was used to decorate chokers, breastplates, clothing, jewelry, and ceremonial headdresses worn by women and men.
  • Southern Plains Native Americans adopted metalsmithing in the 1820s, after metal jewelry was introduced through Spanish and Mexican metalsmiths and trade with tribes from other regions.
  • Plains men began wearing metal pectorals and armbands, and in the late 19th and early 20th centuries, members of the Native American Church revealed their membership to others through pins with emblems of peyote buttons, water birds, and other religious symbols.

• Elements and Compounds

  • The chemical elements are divided into the metals, the metalloids, and the non-metals.
  • Metals, typically found on the left side of the periodic table, are:
  • In contrast, non-metals, found on the right side of the periodic table (to the right of the staircase), are:
  • Metalloids have some characteristics of metals and some characteristics of non-metals.
  • Among the more common of such "native elements" are copper, silver, gold, and sulfur.

• Bonding in Metals: The Electron Sea Model

  • Metallic bonding may be described as the sharing of free electrons among a lattice of positively charged metal ions.
  • Metallic bonding may be described as the sharing of free electrons among a lattice of positively charged metal ions.
  • While ionic bonds join metals to nonmetals, and covalent bonds join nonmetals to nonmetals, metallic bonds are responsible for the bonding between metal atoms.
  • The characteristics of metallic bonds explain a number of the unique properties of metals:
  • Metals are shiny.

• Metal Exchange Reactions

  • Alternative methods of preparing a wide variety of organometallic compounds generally involve an exchange reaction in which a given metal is either moved to a new location or replaced by a new metal, which may include B, Al, Ti, V, Fe, Ni, Cu, Mo, Ru, Pd, Sn, Pt, Hg & Pb.