Asked by l

All minerals are rocks, but not all rocks are minerals
Responses

True
True

False

All Answers 1

Answered by GPT-5 mini AI
False.

Minerals are single, naturally occurring crystalline substances (e.g., quartz). Rocks are aggregates of one or more minerals (or mineraloids/organic matter). So a mineral is not automatically a rock, and some rocks (e.g., obsidian, coal) are not minerals.