Introduction. During the Cuban Missile Crisis, leaders of the U.S. and the Soviet Union engaged in a tense, 13-day political and military standoff in October 1962 over the installation of nuclear-armed Soviet missiles on Cuba, just 90 miles from U.S. shores.
Base Metal. Base metal is a jewelry industry term for nonprecious metals used in costume jewelry, including copper, aluminum, brass, nickel silver, pewter and white metal, also called pot metal. Nickel silver is a silvery-white alloy resembling silver made from nickel, zinc, copper, iron, manganese and sometimes lead.nlike fine jewelry, costume jewelry is made from nonprecious metals called base metals. Most of these are both beautiful and relatively benign. However, nickel can cause an allergic reaction, while the lead found in some alloys has been linked to far more serious conditions and is highly regulated.
Beads. The beads used to make necklaces and bracelets are made from a wide range of materials, including pearl, gemstones, metal, glass, wood, plastic, and shell. Most styles are made of one type of bead, for example pearls, though more eclectic necklace and bracelet styles combine two or more bead materials.etal chains are typically made of silver or gold, though stainless steel, titanium, and other novel metals are becoming increasingly popular, especially for men. Necklaces and bracelets made of strings of beads are gemstones feature either a row or prongs or a string running through the center of each bead or gemstone.