This letter is used to represent the square root of negative 1.
What is i ?
Most Roman numerals are listed "biggest first, smallest last", except for anything involving these two numbers.
What are 4 and 9?
All minerals are inorganic, which means they are all missing this element.
What is carbon?
Patina is greenish in colour, created when this element is exposed to air and oxidized.
What is copper?
Copper and zinc are combined to produce this metal, commonly used for musical instruments.
What is brass?
This is the value of 5!
What is 120? (5 x 4 x 3 x 2 x 1)
This is the only Super Bowl with no Roman numeral, likely because it would've been a letter that no team wants to hold by the end of the game.
What is Super Bowl 50?
This is the largest group of minerals by chemical composition, identified by the presence of SiO2.
What are silicates?
Hematite can be either silver or this colour, which is related to the "hema" part of its name.
What is reddish brown? (Accept: Red or brown)
This monomineralic rock is commonly used for statues and countertops.
What is marble?
The capital version of this Greek letter is used to indicate a sum.
What is sigma?
What is DCCLIII ?
Galena, pyrite, and gypsum are all classified under this element - usually yellow and odorous in its natural form.
What is sulfur? (accept: Sulfides and sulfates)
Brilliant is used to describe this property of a diamond.
This non-metallic mineral is used in the production of drywall and chalk.
What is gypsum?
What is a permutation?
This number is MCMXLVII in Roman numerals. It is also the year that India gained its independence.
What is 1947?
What is a precipitate?
This mineral is rated a 1 on the Mohs hardness scale.
What is talc?
This is the main ore for aluminum in Canada.
What is bauxite?
This mathematical tool helps you find the missing exponent of an equation.
What is a logarithm? (Accept: log)
This is a book written by George Orwell, but in Roman numerals.
What is MCMLXXXIV ?
Olivine and topaz are this shape, which comes from two Greek words - one for "straight/upright" and another for "something that spins".
What is orthorhombic?
This variant of calcite is known for producing double refraction.
What is Iceland Spar?
Amethyst, garnet, and topaz are all members of this "lesser" category of gems.
What are semi-precious stones?