1. Exploring Minerals Chapter 3 Review

2. True or False Friedrich Mohs invented a system to smelt two kinds of iron ore.

3. True or False A vein is a narrow channel or slab of a mineral that is sharply different from the surrounding rock.

4. The purpose of heating iron ore to a very high temp. in a blast furnace is…. 1.to cool down the hot furnace 2.to heat the iron so that it separates from other elements 3.to eliminate one kind of iron 4.to add hematite to final product

5. Hard, colorful minerals that have a brilliant or glassy luster are…. 1.crystals 2.gemstones 3.ores 4.metals

6. What is steel an example of? 1.crystal 2.gemstone 3.ore 4.alloy

7. Why can’t color alone be used to identify a mineral? 1.luster usually hides a minerals color 2.only a few minerals always have their own characteristic color 3.the color of most minerals is hidden by veins 4.color & streak are never the same color

8. In a process called __________, an ore is melted to separate the useful metal from other elements in the ore. 1.shaft 2.density 3.smelting 4.mining

9. The property of ______ is the mass of the mineral sample per unit volume. 1.halite 2.prospector 3.density 4.inorganic

10. What kind of mine is used when ore deposits occur in veins? 1.prospector 2.shaft 3.ore 4.quartz

11. A rock that contains a metal or useful mineral is called what? 1.halite 2.quartz 3.ore 4.pyrite

12. True or False A miner is anyone who searches for an ore deposit.

13. True or False Minerals form when hot water solution cools & the minerals crystallize.

14. Could you tell samples of minerals apart just by using a scratch test? Why or why not?

15. Why is pyrite known as “fool’s gold”?

16. The size of a mineral’s crystals depends on which of the following? 1.the rate of cooling of magma or solution from which mineral is formed 2.the smelting process in which magma is formed 3.the solution from which mineral formed 4.the mineral’s crystal group

17. Which is NOT one of the 6 types of crystal shapes? 1.cubic 2.triclinic 3.tetragonal 4.metallic

18. How do minerals form?

19. What characteristics does a piece of quartz have that can be used to classify it as a mineral?

20. True or False Slag is a combination of impurities in iron ore & limestone. It forms in a blast furnace once the iron in iron ore has melted & sunk to the bottom of the furnace.

21. True or False The vast majority of minerals are compounds.

22. Wage Time! Prospectors have discovered a halite deposit near the Great Salt Lake in Utah. Describe how that deposit might have formed.