Directions: You will be responsible for knowing all information on this sheet. You will study this sheet at home and the minerals in class. You can continue to study the minerals at home on my website (Common Minerals) if you have internet access, or get a color copy for 50¢ in A/V.
 

1.	biotite mica  –		insulation, electronics, filler in plasterboard, cement, paint – peels in thin sheets
2.	muscovite mica  –		insulation, electronics, filler in plasterboard, cement, paint – peels in thin sheets
3.	calcite  –		the matrix in cement (CaCO3), optical equipment – double image (#3 on Moh’s scale of hardness)
4.	quartz  –		glass, crystal, radios, watches, computers, electronics, optical equipment, jewelry (onyx, agate, & amethyst) – hexagonal crystals (#7 on Moh’s scale), common in igneous rocks
5.	sulfur  –		matches, fireworks, medicine (sulfa drugs), sulfuric acid, vulcanization of rubber – yellow color, flammable, smells acrid
6.	graphite  –		pencil “lead”, dry lubricant, batteries – (hardness of #2)
7.	gypsum  –		drywall, plaster of Paris – (#2 on Moh’s scale)
8.	plagioclase feldspar  –		abrasives, filler in paint and plastics – most common minerals in igneous rocks
9.	orthoclase feldspar  –		abrasives, filler in paint and plastics – most common minerals in igneous rocks
10.	hematite  –		iron ore, cabochon jewelry (when polished)
11.	halite  –		table salt, manufacture of soap, paper, petroleum & glass – tastes salty
12.	galena  –		lead ore for pipes, x–ray shielding, fishing weights – very dense
13.	magnetite  –		iron ore – magnetic
14.	talc  –		talcum powder, paints, ceramics, paper coatings – softest mineral (#1 on Moh’s scale)
15.	olivine  –		source of peridotite for jewelry – green color
16.	pyrite  –		sulfuric acid production – known as “fool’s gold”
17.	limonite  –		iron ore, yellow pigment for paint – adds color to soil
18.	barite  –		barium ore for gastrointestinal x–rays, white pigment for paint
19.	dolomite  –		lime for neutralizing acidic soil, road aggregate, building stone
20.	bauxite  –		aluminum ore for soft drink cans, softball bats, alloy wheels, lawn furniture
21.	hornblende  –		common mineral in igneous rocks
22.	copper  –		coins, pipes, wire, cooking utensils, jewelry – ductile, malleable and conductive
23.	kaolinite (a clay mineral)  –		ceramics, china, pottery, filler in paper
24.	chalcedony (chert, flint)  –		arrowheads, driveway gravel, ornamental stone, cabochon jewelry