Question

A round, hollow rock that is lined with mineral crystals is known as a

a. mineral rock
c. vein
b. geode
d. none of the above

Answer 1

b

Step-by-step explanation:

Answer 2

The correct answer is letter B, geode.

Geodes are round, hollow rocks that are lined with mineral crystals. The opposite of geodes are called nodules. Agates, jaspers, and chalcedony are nodules because they do not have hollow cavities the way that geodes do.