Which Rocks term is correctly associated with formation process: “formed from sandstone rich in quartz”, and also with “very resistant to weathering”?

Correct Answer: Option B — Quartzite. Quartzite is correct because it is formed from sandstone rich in quartz. Quartzite is also associated with very resistant to weathering. A further identifying fact is that Quartzite is very resistant to weathering. Another useful fact is that Quartzite is associated with used as construction aggregate and decorative stone. Why the other options are incorrect: Option A — Granite: It is formed by slow cooling of magma below the surface and is associated with coarse-grained with visible crystals; those are the identifying facts of Granite. Option C — Basalt: It is formed by rapid cooling of lava at the surface and is associated with dark-coloured and fine-grained; those are the identifying facts of Basalt. Option D — Pumice: It is formed when gas-rich lava cools rapidly and is associated with so porous that some pieces can float on water; those are the identifying facts of Pumice. Exam Takeaway: Link Quartzite with “formed from sandstone rich in quartz” and “very resistant to weathering” for quick revision.