Basalt is an igneous rock. What type of rock is rock salt?

Bartenders may ask if you want your drink "straight" or what three-word alternative, meaning served over ice? Bartenders mix orange juice with which spirit to make an Orange Blossom cocktail? Bartlett's Familiar Quotations credits which political strategist with "It's the economy, stupid"? Bartolomeu Dias helped build and outfit the ships for which explorer's 1497 voyage from Lisbon to India? What is the base-10 equivalent of the binary number 11? Which Hawaiian base is headquarters of the U.S. Pacific Fleet? Which 1989 film starred Morgan Freeman as Joe Clark, a bat-wielding high school principal? Baseball Hall of Famer Candy Cummings is often credited with inventing which pitch in the late 1800s?