Solved UPSC CDS/OTA Question
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Q · Mineralsmedium · 45s
Cassiterite is the primary ore of which metal?
TopicMinerals
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Cassiterite is the most important tin ore, composed of tin dioxide (SnO₂). It typically occurs as brown to black crystals and is often found in hydrothermal veins and alluvial deposits. Major cassiterite deposits exist in Bolivia, Indonesia, China, and Myanmar. Tin extracted from cassiterite is essential for solder production, tin plating, and bronze alloys.
Final Answer: Option A - Tin