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Minerals Test Review

Prepare for your geology exam with these practice questions covering mineral properties, formation, and identification. Test your knowledge on inorganic materials, crystal systems, cleavage, and more. Master your mineralogy skills!

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Minerals Test Review

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  1. Minerals Test Review

  2. Question 1 • What does inorganic mean? • Something that does not arise from once living things; not from the remains of plants or animals

  3. Question 2 • What type of crystal system does halite have? • Cubic

  4. Question 3 • What is cleavage? • The way a mineral breaks in straight lines; a regular pattern that can be determined

  5. Question 4 • True or False: The faster the magma cools, the larger the mineral crystals will form. • False; smaller crystals would form

  6. Question 5 • What does it mean when we say a mineral always contains certain elements in definite proportions? • It has a definite chemical composition

  7. Question 6 • Why is coal not a mineral? • It is made from the remains of plants and animals

  8. Question 7 • True or false: An ore that is near the surface is removed by strip mining? • True

  9. Question 8 • Most minerals do not split apart evenly, instead they have a characteristic type of what? • Fracture

  10. Question 9 • A narrow channel or slab of a mineral that is different from the surrounding rock is called a what? • Vein

  11. Question 10 • Magma that cools deep within the Earth forms minerals with what type of crystals? • Large

  12. Question 11 • A solid mixture of two or metal is a what? • Alloy

  13. Question 12 • How does halite form? • From the evaporation of a water solution

  14. Question 13 • Earthmoving equipment strips away soil to expose ore in what type of mining? • Strip mining

  15. Question 14 • What is the softest mineral on the Mohs hardness scale? • Talc

  16. Question 15 • Why are metals useful as tools? • Because they can be shaped easily, but they are hard

  17. Question 16 • Why are cement, brick, steel, and glass not considered minerals? • Because they are man made (not naturally occurring)

  18. Question 17 • True or false: The process of prospecting involves mixing an ore with other substances and heating the mixture to a very high temperature. • False; smelting is the process

  19. Question 18 • True or false: Iron is separated from oxygen by cooling iron ore. • F; heating not cooling separates them

  20. Question 19 • What is the repeating pattern of a mineral’s particles called? • A crystal

  21. Question 20 • If you broke a mineral into tiny pieces, each piece would show what? • The same crystal shape

  22. Question 21 • What is the term used to describe how a mineral reflects light from its surface? • Luster

  23. Question 22 • What is the hardest known mineral? • Diamond

  24. Question 23 • When can minerals form on Earth’s surface? • When solutions evaporate

  25. Question 24 • Which type of mine often has a network of tunnels that extend deep into the ground? • Shaft mine

  26. Question 25 • What is the color of a mineral’s powder called? • Streak

  27. Question 26 • What is the term for a mineral that glows under ultraviolet light? • Fluorescence

  28. Question 27 • How do minerals form deep inside Earth’s crust? • By the crystallization of melted materials

  29. Question 28 • What is a rock called that contains a metal or other economically useful mineral? • An ore

  30. Question 29 • What type of mining involves digging a huge hole? • Open pit mining

  31. Question 30 • True or false: A mineral with a hardness of 6 will scratch a mineral with a hardness of more than 6. • False; less than 6

  32. Question 31 • True or false: The mineral quartz, which is found in sand, is used to make glass and electronic equipment. • True

  33. Question 32 • What is a gemstone? • A rare, hard, colorful mineral with a brilliant or glassy luster

  34. Question 33 • What is a solid? • A substance with a definite shape and definite volume

  35. Question 34 • What does it mean we say that a mineral must be naturally occurring? • It forms by the process that shapes the Earth; it is not man made

  36. Question 35 • What are the six crystal systems? • Cubic • Hexagonal • Tetragonal • Orthorhombic • Monoclinic • Triclinic

  37. Question 36 • How would we test to see if a mineral is chemically reactive? • By dropping an acid like vinegar or hydrochloric acid on it to see if it fizzles

  38. Question 37 • What are the three ways that minerals form? • Crystallization of molten material • Crystallization of hot water solutions • Crystallization by evaporation of solutions

  39. Question 38 • What are some of the special properties of minerals? • Fluorescence • Chemical Reactivity • Electrical Properties • Radioactivity • Double Image

  40. Question 39 • Why is color not the best way to identify a mineral? • Because minerals like quartz can come in a variety of colors, and some minerals are the same color as other minerals.

  41. Question 40 • What is a mineral? • A solid, inorganic, crystalline solid, with a definite chemical make up

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