Question

How can quartzite be distinguished from quartz sandstone?

A. The mineral compositions are different.

B. Quartzite is not granular, while sandstone is granular.

C. Quartz sandstone has undergone metamorphism, while quartzite has not.

D. A broken piece of quartzite will break through, not around, quartz sand grains.

Answer 1

D. A broken piece of quartzite will break through, not around, quartz sand grains

Step-by-step explanation:

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Answer 2

D. A broken piece of quartzite will break through, not around, quartz sand grains.

Quartzite and quartz sandstone have the same chemical formula (SiO_2)

Quartzite is a metamorphic rock. Heat and pressure have compressed the sand into a strong network of interlocking quartz grains.

Quartzite is so tough that it breaks through the sand grains rather than around them as in sandstone.