Test your knowledge of gemstones and rocks with quizzes.
Photos and interesting facts of all your favourite gemstones and rocks.
Learn about different rocks and gemstones and see how your scores improve over time.
Some of the gems and rocks include agate, carnelian, emerald, jade, marble, tanzanite, and sapphire.
Latest Version
1.3.0Uploaded by
João Vitor Levita
Requires Android
Android 4.0.3+
Category
Free Education AppContent Rating
Everyone
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Flag as inappropriateLast updated on Dec 11, 2018
Update for Android Oreo
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