Inside a mineral crystal: Only one element can occur; otherwise, the crystal is a compound, not a mineral. Atoms are arranged in an orderly lattice.

Inside a mineral crystal:

Only one element can occur; otherwise, the crystal is a compound, not a mineral.

Atoms are arranged in an orderly lattice.

Only two elements can occur, and these must occur in a definite ratio.

Atoms are randomly arranged but occur in definite proportions.

Atoms are able to move around easily, but they cannot leave the crystal.

Question 2

2. Question 2

[Q#4006]

Which of the following would be considered a mineral?

Coal

Glass

Diamond

Opal

Question 3

1

point

3. Question 3

[Q#4010]

The crystal structure of a mineral refers to:

The ratios of specific chemical elements in the mineral

The orderly arrangement of atoms or ions in a lattice

The strength of the chemical bonds in the mineral

Only the clear or glassy versions of the mineral

Question 4

1

point

4. Question 4

[Q#4013]

Gemstones in jewelry have dozens of shiny faces called "facets." The facets are generally formed by:

Smashing a big "rough" stone with a large hammer so that it shatters into small, perfectly faceted fragments

Growth of the crystal with well formed faces out of a pure water solution

Natural crystallization in a cooling magma

A gemcutter who grinds and polishes the gemstone against a rotating wheel

Question 5

1

point

5. Question 5

[Q#4014]

True or False? The proportions of elements making up a mineral can vary so much that it is never possible to chemical formula for a mineral.

True

False

Question 6

1

point

6. Question 6

[Q#4016]

Diamonds are composed of:

A long sturdy chain of carbon and hydrogen atoms

Silicon atoms packed together very tightly

Carbon

A mixture of minerals that have low numbers on Mohs scale of hardness

Question 7

1

point

7. Question 7

[Q#4019]

True or False? Natural resources are uniformly distributed around the world, so all countries have equal access to needed supplies.

False

True

Question 8

1

point

8. Question 8

[Q#4021]

Which mineral resources are considered renewable?

Nonmetallic minerals

Base metals

No mineral resources are renewable.

Iron and aluminum ores

Question 9

1

point

9. Question 9

[Q#4023]

Ore deposits are:

Accumulations of only pure native metals (e.g., gold and copper)

Composed of rock that is relatively unfractured so that it makes good building stone

Accumulations of economic minerals in sufficient quantity to be mined

Formed only by settling of metal flakes out of a fluid

Question 10

1

point

10. Question 10

[Q#4028]

A sedimentary accumulation of heavy mineral grains (e.g., gold flakes) is a:

Vein deposit

Hydrothermal deposit

Placer deposit

Chemical precipitate

Question 11

1

point

11. Question 11

[Q#4030]

Which of the following is considered to be a precious gem?

Opal

Topaz

Emerald

Garnet

Question 12

1

point

12. Question 12

[Q#4032]

Natural mineral materials that can be used for cutting, polishing, and grinding are considered to be:

Dimension stones

Refractories

Abrasives

Alloys

Question 13

1

point

13. Question 13

[Q#4034]

The first ores that were widely smelted by humans to produce metal were those of ____________.

Copper

Bronze

Iron

Gold

Question 14

1

point

14. Question 14

[Q#4036]

Mineral-rich veins within or near plutons, deposited in fractures by hot groundwater, characterize ____________ deposits.

Residual mineral

Placer

Hydrothermal

Sedimentary

Question 15

1

point

15. Question 15

[Q#4038]

Which of these materials is used in making glass?

Granite

Sand

Limestone

Salt

Question 16

1

point

16. Question 16

[Q#4041]

Blocks of rock used in construction are termed ____________.

Ore

Gemstone

Lodestone

Dimension stone