1. A white or colourless mineral (BaSO4); the main source of barium
   - barite, barytes, barium sulphate

Type of: mineral

Encyclopedia: Heavy spar

• Ixodes persulcatus
• Ixodes ricinus
• Ixodes scapularis
• Ixodes spinipalpis
• ixodid
• Ixodidae
• Iyar
• Iyyar
• Iz Al-Din Al-Qassam Battalions
• Izaak Walton
• Izanagi
• Izanami
• izar
• Izmir
• izzard
• izzit
• j
• J particle
• J-cloth
• J. B. Rhine
• J. B. S. Haldane
• J. C. Maxwell
• J. Craig Ventner
• J. D. Salinger
• J. E. Johnston