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Q. |
Spot the odd item in the following : |
A. | Basalt |
B. | Ruby |
C. | Emerald |
D. | Sapphire |
Answer» A. Basalt | |
Explanation: Emerald, together with ruby and sapphire, form the "big three" of colored stones or gems which are all metamorphic in nature. Basalt is an igneous rock. |
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