@article{oai:ir.kagoshima-u.ac.jp:00002126,
 author = {小牧, 高志 and KOMAKI, Takashi},
 journal = {鹿児島大学工学部研究報告, The research reports of the Faculty of Engineering, Kagoshima University},
 month = {Oct},
 note = {GROWING OF MULLITE FROM CALCINATION OF CLAY. Clay mineral becomes Mullite when calcinated, but this formation varies which the kinds of clay. The author studied on the formation of mullite by calcinating white clay in the South Kyushu, Ibusuki clay and Aira Fukugano clay as kaolinite, Okuchi clay and Iriki clay as hydrohalloysite, 
Yoshinoyama clay as montmorillonite, each up to 1000°C, 1200°C and 1500°C. there were not
apper the peak of mullite by X-ray diffration in calcinate clay at 1000°C, but the peak of cristobalite is observed in Iriki clay and Yoshinoyama clay. Calcinating kaolinite and hydrohalloysite at l200°C, observed much mullite, but in montmorillonite observed cristobalite instead of mullite. at 1500°C, except montmorillonite, much more mullite was observed and in case of Okuchi 
cristobalite is developed, too. In Okuchi clay 80% of the clay became mullite in Ibusuki clay 67% and in Yoshinoyama clay only 13%.},
 pages = {49--59},
 title = {南九州産白色粘土の研究 : 第12報 粘土の加熱によるムライト生成},
 volume = {3},
 year = {1963}
}