Rock Types Quiz
1 / 15Identify rock types and geological formations
15 quick questionsNo sign-upFree to playTap an answer below to begin ↓
This hard, coarse-grained igneous rock is made of quartz, feldspar, and mica. It is commonly used for kitchen countertops and building facades. What rock is this?
About Rock Types Quiz
Identify rock types and geological formations Rock Types Quiz packs 15 multiple-choice questions aimed at mixed difficulty into a relaxed session of roughly 7 minutes — no sign-up, no timer pressure. An explanation appears after every answer, and finishing once a day keeps your streak alive.
A few sample questions
1. This hard, coarse-grained igneous rock is made of quartz, feldspar, and mica. It is commonly used for kitchen countertops and building facades. What rock is this?
Answer: Granite
2. This metamorphic rock was once limestone but was transformed by heat and pressure into a smooth, often white stone prized by sculptors like Michelangelo. What rock is this?
Answer: Marble
3. This dark, fine-grained igneous rock forms from rapidly cooled lava and makes up most of the ocean floor. The Giant's Causeway in Ireland is made of columns of this rock. What rock is this?
Answer: Basalt
4. This volcanic glass forms when lava cools so rapidly that crystals cannot form. It is typically jet black and was used by ancient peoples for tools and weapons. What rock is this?
Answer: Obsidian
5. This sedimentary rock is made primarily of calcium carbonate from ancient marine organisms. It is used in cement and many famous buildings, including the Great Pyramid of Giza. What rock is this?
Answer: Limestone
Frequently asked questions
Is Rock Types Quiz free to play?
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How long does Rock Types Quiz take?
Most players finish Rock Types Quiz in about 7 minutes. You can pause between questions, replay it as often as you like, and there is no penalty for taking your time — answers are explained after you submit them.
What's a good follow-up after Rock Types Quiz?
If you enjoyed this memory games quiz, try the Daily Challenge — five rotating questions, refreshed every 24 hours, that count toward your streak. You can also use the Surprise Me button on the homepage to land on a different game type for variety.
Can I print Rock Types Quiz?
Yes — use the Print button at the top of the page for a clean question sheet, or "Print with Answers" to make an answer key. Printed sheets work well for group play at home, in a classroom, or at a senior center.
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