2. Geology and Exploration
Mineral Identification — Quiz
Test your understanding of mineral identification with 5 practice questions.
Practice Questions
Question 1
Which of the following describes the ability of a mineral to transmit light, ranging from opaque to transparent?
Question 2
When examining a mineral in thin section under a petrographic microscope, what phenomenon occurs when a mineral appears dark or black as the stage is rotated to certain positions?
Question 3
What is the term for the characteristic way a mineral breaks along irregular or uneven surfaces, rather than along planes of weakness?
Question 4
Which of the following optical properties is observed when a mineral exhibits different colors when viewed from different angles under a petrographic microscope?
Question 5
What is the primary method for determining the specific gravity of a mineral in a laboratory setting?