Mineralogy

Question 1

Crystal habit characterized by branching, tree-like clusters similar to dendritic.

Answer 1

Arborescent

Question 2

Which of the following minerals exhibits a splendent luster?

a. Quartz
b. Galena
c. Mica
d. Feldspar

Answer 2

Galena

Question 3

What is the index of refraction for Canada Balsam?

Answer 3

1.54

Question 4

Which of the following is NOT part of the calcite group?
a. Magnesite
b. Siderite
c. Rhodochrosite
d. Dolomite

Answer 4

Dolomite

Question 5

What is the most common method for dissolving silver?

A) Hydrochloric acid
B) Sulfuric acid
C) Nitric acid
D) Phosphoric acid

Answer 5

Nitric Acid

Question 6

What is the color of K-felds during staining?
A) Red
B) Blue
C) Green
D) Yellow

Answer 6

Yellow

Question 7

What is the typical magnification used for observing interference figures in thin sections?

A) 5x
B) 10x
C) 25x
D) 45x

Answer 7

25x

Question 8

Cerargyrite is a mineral of:

A) Silver
B) Copper
C) Gold
D) Lead

Answer 8

Silver (-arg = Argentum)

Question 9

What is the typical operating cut-off grade for a porphyry copper deposit?
Response recorded

A) 0.1-0.3% Cu
B) 0.3-0.5% Cu
C) 0.5-0.7% Cu
D) 0.7-1.0% Cu

Answer 9

0.3-0.5% Cu

Question 10

What type of deposit is found in Almaden, Spain?

A) Gold
B) Silver
C) Mercury
D) Copper

Answer 10

Mercury

Question 11

What is the primary use of agalmatolite/pagodite?

A) Gemstone
B) Carving stone
C) Building material
D) Ore of aluminum

Answer 11

Carving Stone

Question 12

Where is the Argyle Diamond Pipe located?

A) South Africa
B) Russia
C) Canada
D) Australia

Answer 12

Australia

Question 13

Which of the following minerals contains the gem variety alexandrite?

A) Corundum
B) Beryl
C) Chrysoberyl
D) Topaz

Answer 13

Chrysoberyl