6th grade-ch. 4 sec. 3 mineral resources

Ch. 4 Sec. 3 Mineral Resources

Mineral UsesTalc Talcum powder

Calcite Optical instruments like microscopes

Quartz Glass, electronic equipment, watches

Gypsum Wallboard, cement, stucco

gemstone gemstone • hard, colorful mineral that has brilliant or

glassy luster

• gemstone that has been cut & polished• used for: jewelry decoration mechanical parts grinding & polishing

gemgem

Ruby Blue Topaz

Silver Topaz

Chrysoberyl(cat's eye)

Emerald Garnet

BIRTHSTONESBIRTHSTONES

metals

• can be stretched into wire, flattened into sheets, hammered or molded w/out breaking

Uses of metals:

•aluminum foil

•steel beams

•light bulb filament

oreore• rock that contains metal or

economically useful mineral

chalcopyrite

prospectorprospector• anyone who searches for ore deposits

strip open pit

shaft

strip minin

g

earthmoving equipment scrapes away soil - expose ore

giant earthmovingequipment used to dig

huge pit

shaft mine

•network of tunnels that go deep underground•removes ore from veins

"Hang on to your hats and "Hang on to your hats and glasses 'cause this here's glasses 'cause this here's

the wildest ride in the the wildest ride in the wilderness."wilderness."

process where ore is melted to separate useful metal from other elements it contains

smelting

smelting process of iron

1. iron ore crushed-mixed w/

limestone & coke2.

3.

4.

5.

alloyalloy• solid mixture of 2 or

more metals

• special properties:

1.stronger steel

2. rust resistant steel