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School:___________________________________________
Team#:_________________
Rocks & Minerals
Eastside Invitational
January 28, 2017
Directions: You will be given 3 minutes at each station (14 stations in total) with a
running clock. After 3 minutes I will say, “rotate,” and you are to proceed on to the
next station. When formal time is up (42 minutes), you will have 2 additional
minutes with closed containers, to review your answers.
You may NOT return to a station, but you may change or add information to your
original responses while at other stations. Your documents must be turned within the
additional 2 minute time period (time is not a tiebreaker).
Only the answers written on the answer document will be scored. You sure you write
neat enough…if I can’t read it, it marked incorrect.
Any damaging or tampering of specimens/equipment will result in a disqualification.
Materials: Each team may bring one magnifying glass and one 3-ring binder (of any
size) containing pages of information in any form, from any source.
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Station 1:
1. Identify the group (general name) for which the following specimen belongs to, as named on the
official Rocks and Minerals List?
2. What is the chemical formula? [Answer must be written as symbols.]
3. The Mohs hardness scale defines the hardness of this mineral as:
a. 1.0-2.5
c. 5.0-7.5
b. 2.5-5.0
d. 7.5-10
4. Identify the specific specimens of this group based on their labels (A, B, C, and D)
what trace elements and/or reason for the cause for the color variation.
AND
indicate
5. Which specimen from Question #4 (A, B, C, or D) is the most common?
Station 2:
6. Identify this specimen as named on the official Rocks and Minerals List?
7. Identify this specimen as igneous, sedimentary, or metamorphic.
8. What type of environment was this specimen formed in?
a. Swamps
c. Beaches
b. Rivers
d. Volcanoes
9. All types of this specimen may have begun as what formation?
10. What property(s) determine the variation (or type) of this specimen?
I. Time
II. Temperature
III. Depth
a. I only
d. I and II only
b. II only
e. II and III only
c. III only
f. I, II, and III
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Station 3:
11. Identify this specimen as named on the official Rocks and Minerals List?
12. Which metal is least commonly found in this specimen?
a. K
c. Ca
b. Na
d. Ba
13. What is the mineral habit of this specimen?
a. Foliated
b. Lamellar
c. Plumose
d. Stellate
14. Which of the following is NOT a property of this specimen?
a. Hydrophillic
c. Insulator
b. Hydrophobic
d. Dielectric
15. What elements found within this specimen are used to help date rock layers?
I. Argon
II. Potassium
III. Uranium
a. I and II only
c. II and III only
b. I and III only
d. I, II, and III
Station 4:
16. Identify this specimen as named on the official Rocks and Minerals List?
17. What is the chemical formula? [Answer must be written as symbols.]
18. The Mohs hardness scale defines the hardness of this mineral as:
a. 1.0-2.5
c. 5.0-7.5
b. 2.5-5.0
d. 7.5-10
19. What
a.
b.
c.
is the cleavage of this specimen?
Rhombohedral
Cubic
Octahedral
d. prismatic
e. It does not exhibit cleavage.
3
Station 5:
20. Identify this specimen as named on the official Rocks and Minerals List?
21. What is the chemical formula? [Answer must be written as symbols.]
22. The Mohs hardness scale defines the hardness of this mineral as:
a. 1.0-2.5
c. 5.0-7.5
b. 2.5-5.0
d. 7.5-10
23. What is the specific gravity of this specimen?
a. 2.7
b. 3.3
c. 4.2
d. 4.9
24. Which of the following metals is the main ore that is extracted from this specimen?
a. Cu
c. Co
b. Fe
d. Zn
Station 6:
25. Identify this specimen as named on the official Rocks and Minerals List?
26. The Mohs hardness scale defines the hardness of this specimen as:
a. 2.0-3.0
c. 4.0-5.0
b. 3.0-4.0
d. 5.0-6.0
27. Which metal in this specimen is used to help identify the depth of crystallization of plutonic
rocks?
a. Na
c. Al
b. Mg
d. Ca
28. This specimen is found most commonly in what type of rocks?
I. Igneous
II. Metamorphic
III. Sedimentary
a. I and II only
c. II and III only
b. I and II only
d. I, II, and III
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Station 7:
29. Identify this specimen as named on the official Rocks and Minerals List?
30. The Mohs hardness scale defines the hardness of this specimen as:
a. 2.0-3.0
c. 4.0-5.0
b. 3.0-4.0
d. 5.0-6.0
31. What ion is NOT in high concentration in this specimen?
a. OHc. Clb. Fd. Br32. What is the most common use for this specimen?
a. Jewelry
b. Fertilizers
c. Rust preventative
d. Fluoridate water
Station 8:
33. Identify this specimen as named on the official Rocks and Minerals List?
34. The most common types of this specimen primarily have what three components:
I. Quartz. II. Potassium feldspar III. Plagioclase feldspar IV. Muscovite mica V. Biotite mica
a. I, II, and III
c. I, II, and V
b. I, II, and IV
d. I, II, and V
35. In order to be classified as this specimen, what size (in diameter) must the crystals be?
a. Less than 0.1cm
c. Between 0.5-1.0cm
b. Between 0.1-0.5cm
d. Greater than 1.0cm
36. Which molecule is NOT removed early during the cooling process, which allows for extended time
for crystal growth?
a. Chlorine
c. Water
b. Fluorine
d. Carbon dioxide
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Station 9:
37. Identify this specimen as named on the official Rocks and Minerals List?
38. The Mohs hardness scale defines the hardness of this mineral as:
a. 1.0-2.5
c. 5.0-7.5
b. 2.5-5.0
d. 7.5-10
39. Which of the following metals is the main ore that is extracted from this specimen?
a. Mg
c. Ca
b. Al
d. Zn
40. Which of these terms best describe its habit?
a. Botryoidal
b. Globular
c. Oolitic
d. Pisolitic
41. Which of the following countries is the largest producer of this specimen?
a. Australia
c. China
b. Brazil
d. India
Station 10:
42. Using the materials provided, fingernails included, determine the relative hardness for each of
the six specimens. List the specimens, by name AND number, list them in order of increasing
hardness.
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Station 11:
43. Identify this specimen as named on the official Rocks and Minerals List?
44. What is the chemical formula? [Answer must be written as symbols.]
45. The density of the specimen is:
a. 3.02g/cm3
b. 4.02g/cm3
c. 5.02g/cm3
d. 6.02g/cm3
46. What is the most common variety of this specimen?
a. Emery
b. Ruby
c. Sapphire
d. Ultralite
Station 12:
47. Identify this specimen as named on the official Rocks and Minerals List?
48. What is the chemical formula? [Answer must be written as symbols.]
49. If this specimen is placed in hydrochloric acid (aq), a chemical reaction occurs, creating bubbles.
What substance are those bubbles made of?
a. H2O
c. HCl
b. CO2
d. More than one choice.
50. What type of rock(s) is this specimen typically found in as named on the official Rocks and
Minerals List.
Station 13:
51. Given the following metamorphic rocks (a.-e.), determine the grade of metamorphism
identify the parent rock from which they have been formed from.
AND
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Station 14:
52. Identify this specimen as named on the official Rocks and Minerals List?
53. How is this specimen classified?
a. Ultramafic
b. mafic
54. Which best describes the texture of this specimen?
a. Vitreous
b. Aphanitic
c. Porphyritic
c. intermediate
d. Felsic
d. Phaneritic
e. Pyroclastic
55. Most types of this specimen have composition similar to what other types of rocks?
a. Basalt and gabbro
c. Granite and rhyolite
b. Diorite and andesite
d. It is a unique specimen all to itself.
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