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High Desert Satellite Invitational — Rocks and Minerals

Rocks and Minerals · Division C · High Desert Satellite Invitational · 2023

50 questions · 100 points · 50 min

Original test source

Read questions carefully. You will not be penalized by typos.

Question 2

2 pts

Andesite is most often associated with what type of plate boundary?

Question 3

2 pts

Which of the following common items is NOT a mineral?

Question 4

2 pts

You would most likely find the remains of plants in a deposit of ____

Question 5

2 pts

The process whereby rocks are changed to sediment is called

Question 6

2 pts

A change in magma composition due to melting of surrounding country rock is called

Question 7

2 pts

The principle agents of metamorphism are

Question 8

2 pts

Halite is made when a body of seawater becomes closed off and evaporates and salt precipitates out and is deposited as crystallized halite. What type of sedimentary rock is formed?

Question 9

2 pts

Igneous and metamorphic rock can be buried and undergo tremendous heating and stress. What is the process of transformation of one rock type into another?

FigureFor questions 10a, 10b, 10c

Specimen 1 Tests Performed: Effervesces in acids, Scratches with penny

Question 10a

2 pts

Identify the mineral: ____

Question 10b

2 pts

What other mineral has the same chemical formula?

Question 10c

2 pts

This specimen shows pseudo-hexagonal forms due to repeated ____.

FigureFor question 11a

Specimen 2 Tests performed: Hardness: Masonry Drill bit

Question 11a

2 pts

Identify the mineral: ____

Question 11b

4 pts

Specimen 2 Tests performed: Hardness: Masonry Drill bit

Chemical formula: Silicate

FigureFor questions 12a, 12b, 12c

Question 12a

2 pts

What is the proper name of this geologist's tool?

Question 12b

2 pts

What rock would the material in the bottom two trays form?

Question 12c

2 pts

The general term for turning sediment into a rock is ____.

FigureFor questions 13a, 13b, 13c

Specimen 3 Tests performed: Hardness: fingernail, Streak: white

Question 13a

2 pts

Identify the mineral: ____

Question 13b

2 pts

What is the hardness number?

Question 13c

2 pts

What clay group does it belong to?

FigureFor questions 14a, 14b, 14c

Specimen 4 Tests performed: Glass plate, magnetic when heated

Question 14a

2 pts

Identify the mineral: ____

Question 14b

2 pts

This mineral usually replaces the mineral ____

Question 14c

2 pts

What is the mineral crystal called when it does this?

FigureFor questions 15a, 15b, 15c

Specimen 5/6 Tests performed: 1 M HCl test: Specimen 5 (light) obvious fizzing, Specimen 6 (darker) fizzes slightly only after scratched with knife

Question 15a

2 pts

Identify Specimen 5: ____

Question 15b

2 pts

Identify Specimen 6: ____

Question 15c

2 pts

What term is used to describe the group of minerals on this specimen?

FigureFor questions 16a, 16b, 16c

Specimen 7 Tests performed: Hardness: Penny Streak: white

Question 16a

2 pts

Identify the mineral: ____

Question 16b

2 pts

Main ore of the element ____.

Question 16c

2 pts

Its name is derived from a Greek name "barys" meaning ____

FigureFor questions 17a, 17b, 17c

Specimen 8 Tests performed: Hardness: Penny, Dissolves in nitric acid

Question 17a

2 pts

Identify the mineral: ____

Question 17b

2 pts

What is the specific gravity of this mineral? ____ (credit if in correct range)

Question 17c

2 pts

Tenacity: ____

FigureFor questions 18a, 18b, 18c

Specimen 9 Tests performed: Soluble in HCl, Hardness: Steel Nail starts to scratch

Question 18a

2 pts

Identify the mineral: ____

Question 18b

2 pts

What term in geology is used describe an inclusion of a mineral in a larger rock during its development and hardening?

Question 18c

2 pts

What is the name of the gemstone variety of this mineral?

FigureFor question 19a

Specimen 10 Test performed: Hardness: Only scratched with Masonry Drill bit

Question 19a

2 pts

Identify the rock: ____

Question 19b

4 pts

Specimen 10 Test performed: Hardness: Only scratched with Masonry Drill bit

This rock is a (metamorphic, or sedimentary) rock which was originally pure

FigureFor questions 20a, 20b, 20c

Specimen 11 Test performed: Hardness: Penny

Question 20a

2 pts

Identify the rock: ____

Question 20b

2 pts

Is this rock igneous, metamorphic, or sedimentary?

Question 20c

2 pts

This rock is in the ____variety

FigureFor question 21a

Specimen 12 Test performed: Hardness: Only scratches with Masonry drill bit

Question 21a

2 pts

Identify this weathered rock specimen: ____

Question 21b

4 pts

Specimen 12 Test performed: Hardness: Only scratches with Masonry drill bit

Identify the two main minerals that comprise it:

and (enter alphabetically)

FigureFor questions 22a, 22b, 22c

Specimen 13 Tests performed: Hardness: Penny scratches

Question 22a

2 pts

Identify the rock: ____

Question 22b

2 pts

What is the most likely parent rock for this rock?

Question 22c

2 pts

The most common use of this rock is ____.

FigureFor questions 23a, 23b, 23c

Specimen 14 Tests performed: Hardness: starts to scratch with fingernail

Question 23a

2 pts

Identify this rock: ____

Question 23b

2 pts

Under high grade metamorphism, rock B will turn into ____

Question 23c

2 pts

Is this rock igneous, metamorphic or sedimentary?