a United States dry unit equal to 2 pints or 67.2 cubic inches
a British imperial capacity measure (liquid or dry) equal to 2 pints or 1.136 liters
a United States liquid unit equal to 32 fluid ounces; four quarts equal one gallon
colorless glass made of almost pure silica
a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
