TY  - BOOK
AU  - Machin,James Stewart
AU  - Vaneck,James Franklin
TI  - Effect of fluorspar on silicate melts with special reference to mineral wool,
T2  - Illinois.  State geological survey.  Report of investigations
AV  - TN948.F6 M3
PY  - 1940///
CY  - Urbana, Ill.
KW  - Fluorspar
KW  - Mineral wool
N1  - At head of title: State of Illinois ... Department of registration and education ... Division of the State geological survey; Printed by authority of the state of Illinois; Bibliography: p. 15
ER  -