Obsidian,shown below,____________.
A) is volcanic glass
B) possesses conchoidal fracture
C) typically is felsic in composition
D) All of the above are correct.

Question

Obsidian,shown below,____________. 
A) is volcanic glass 
B) possesses conchoidal fracture 
C) typically is felsic in composition 
D) All of the above are correct.

Quizplus · Accepted Answer

Obsidian is a volcanic glass that possesses conchoidal fracture. It is typically felsic in composition, which means it is rich in silicate minerals such as feldspar and quartz. Therefore, all of the given statements are correct.

Obsidian,shown Below,____________