GIA Diamonds and Diamond Grading Assignment 5 Questionnaire Exam Questions and Answers
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Course
Diamond grading
Institution
Diamond Grading
What shape is a diamond's unit cell?
A. Cube
B. Sphere
C. Pyramid
D. Cylindrical - Answer-A. Cube
What is the optic character of a crystal when all light rays behave identically in all directions?
A. Organic
B. Anisotropic
C. Singly refractive
D. Doubly refractive - Answer-C. Singly refr...
GIA Diamonds and Diamond Grading
Assignment 5 Questionnaire Exam
Questions and Answers
What shape is a diamond's unit cell?
A. Cube
B. Sphere
C. Pyramid
D. Cylindrical - Answer-A. Cube
What is the optic character of a crystal when all light rays behave identically in all
directions?
A. Organic
B. Anisotropic
C. Singly refractive
D. Doubly refractive - Answer-C. Singly refractive
What is the only way to accurately determine diamond type?
A. Spectroscopy
B. Specific gravity
C. Checking for strain
D. Checking for cleavage - Answer-A. Spectroscopy
In diamond, what is a group of five carbon atoms with one at the center?
A. Unit cell
B. Octahedron
C. Tetrahedron
D. Trisoctahedron - Answer-C. Tetrahedron
What is the regular, repeating pattern of atoms in a mineral?
A. Habit
B. Cleavage
C. Crystal system
D. Crystal structure - Answer-D. Crystal structure
What forms when a crystal's growth stops and then grows in a different, symmetrical
direction?
A. Glassie
B. Carbonado
C. Octahedron
D. Twinned crystal - Answer-D. Twinned crystal
Which type of growth mark indicates an octahedral crystal face in diamond?
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