tephroite-fayalite series Directory References Discover 6 Questions About the History of Money and Banking Answered 10 of the World’s Most Dangerous Fish What Is the Most Widely Practiced Religion in the World? 6 Important Mughal Emperors What is Holy Week? Causes of the Great Depression 9 of the World’s Deadliest Snakes Contents tephroite-fayalite series mineralogy Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:formation In tephroite…Mn2SiO4) forms a solid solution series with the olivine fayalite in which iron completely replaces manganese in the molecular structure. For detailed physical properties, see olivine (table). Read More