ironstones

noun
  1. Plural of ironstone; rocks or ores containing iron compounds, often used as a source of iron or as building material.
  2. Usage: Geology/mining term; Typically used in plural form
  3. A type of hard, durable ceramic ware or pottery, typically white or cream-colored, used for tableware and decorative items.
  4. Usage: Historical; refers to 19th-century English pottery

Examples