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Which mineral is the main source of phosphorus in phosphate fertilizer?
Answer
Apatite
What is the name of the giant crystal cave discovered beneath Naica, Mexico?
Answer
Cave of the Crystals
Which mineral typically leaves a reddish-brown streak on an unglazed porcelain plate?
Answer
Hematite
Which mineral is famous for producing double images through strong birefringence?
Answer
Calcite
Which mineral has the chemical formula SiO₂ and forms amethyst and citrine varieties?
Answer
Quartz
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Latest trivia questions
What is the name of the giant crystal cave discovered beneath Naica, Mexico?
Answer
Cave of the Crystals
Which company arranged Dennis Tito’s 2001 trip to the International Space Station?
Answer
Space Adventures
Which company founded the commercial space-station venture Axiom Station?
Answer
Axiom Space
What engine powers Rocket Lab’s Electron rocket?
Answer
Rutherford
Which company developed the Peregrine lunar lander?
Answer
Astrobotic Technology
What was the name of the inflatable module attached to the International Space Station in 2016?
Answer
Bigelow Expandable Activity Module