00849cam a22002771 4500 gs 63000045 DLC 20260227111412.0 860218s1961 sa a b 000 0 eng c gs 63000045 (OCoLC)13164498 U.S. Geol. Survey. Libr. NhD NhD OCoLC DLC eng afr premarc QE325 .A53 no. 35 TN948.T9 S8 Copy 2. Steyn, J. G. D. Tysonite from Mutue Fides. Pretoria, Printed by and obtainable from the Govt. Printer, c1961. 31 p. illus., diagrs., tables. 24 cm. South Africa. Geological Survey. Bulletin 35 Summary in Afrikaans. Bibliography: p. 30-31. Tysonite. South Africa Mutue Fides. 29666 29666