Download - Earth’s Surface: Chapter 2 Section 3
Earth’s Surface: Chapter 2 Section 3 MINERALS ARE VALUABLE RESOURCES
Objectives: 1. Identify ways that minerals are used in industry
and art. 2. Explain how minerals may form 3. Explain how minerals are mined
Minerals in Industry and Art 1. Metals for cars and airplanes 2. Quartz and Feldspar are used for glass 3. Fluorite and Calcite for toothpaste 4. Mica and Talc for paint Minerals are used in birthstones (gemstone) Gemstones are grinded and polished before being
used in jewelry
Common Mineral Uses
Bauxite Aluminum, foil, airplane parts
Borax Antiseptic soaps, welding flux or cleaner (found in dry lake beds)
Calcite Medicine, toothpaste, bldng. materials(hard water deposit, ancient sea beds)
Copper Tubing, electrical wires, sculptures
Diamond Cutting tools/ blades/ saws
Feldspar Ceramics and porcelain, colors in granites (not black)
Galena Source of lead
Mineral UsesGraphite Pencils, lubricant in
machinery
Gypsum Wall board, Plaster of Paris
Halite Salt
Hematite Source of iron
Jade Jewelry, figurines
Limonite /Taconite Source of iron (around Cedar City)
Muscovite (Mica) White, gray material in electrical insulators
Mineral UsesJade Jewelry, figurines
Limonite /Taconite Source of iron (around Cedar City)
Muscovite (Mica) White, gray material in electrical insulators
Quartz (massive type)Quartz crystal
Glass manufacturing, radios, computers and electronic equipment
Silver Jewelry, photography, electrical equip.
Sulfur Fungicides, kills bacteria, vulcanizes rubber, in coal and fuels, fertilizer
Talc Baby powder, soapstone, gymnastics to grasp bars
Minerals Form in Different Ways 1. Water Evaporates: Halite and Gypsum can form 2. Hot Water Cools: Gold 3. Molten Rock Cools: Magma is molten rock
inside the Earth- Minerals can also form from lava-Example: Quartz forms from lava and magma
4. Heat and Pressure Cause Change: Graphite 5. Organisms Produce Minerals: Oysters and
Clams produce Calcite.-Your body produces apatite (bone & teeth)
Mining An ore is a rock that contains enough of a mineral
to be mined. Surface Mining: Could be panhandling or strip
mining In strip mining, the plants, soil and unwanted rocks
are removed and then the ores are dug out In open pit mining explosives are used to break up
the ground and recover the ores A much deeper hole is made in open pit mining In deep mining, miners can work up to 2 miles
underground
Strip Mining
Strip Mining
Open Pit Mining
Open Pit Mining
Open Pit Mining
Mining Equipment