marble
n//ˈmɑɹ.bəl//marmor, kula, spelkula, marmorera
(uncountable, petrology) A metamorphic rock of crystalline limestone. [from 12th c.]
(countable, games) A small ball used in games, originally of marble but now usually of glass or ceramic. [from 17th c.]
(intransitive) To get or have the streaked or swirled appearance of certain types of marble, for example due to the incomplete mixing of viscous ingredients, or the uneven application of paint or other colorants.