FORAMINirEEA OF THE KEEIMBA AECHIPELAGO. 



381 



Sample No. 3. 



Ketained by 30 sieve . . . 



60 „ ... 



90 „ . . . 

 Passed by 90 „ ... 



Loss in 10 per cent. HCl . 



Lighter than 2-9 



Heavier than 2'9 



Sample No. 4. 



Eetained by 30 sieve . . . 



60 „ ... 



90 „ ... 



Passed by 90 „ ... 



Loss in 10 per cent. HCl . 



Lighter than 2-9 



Heavier than 2'9 



Sample No. 5. 



Eetained by 30 sieve . . . 



60 „ ... 



90 „ ... 



Passed by 90 „ ... 



Loss in 10 per cent. HCl . 



Lighter than 2'9 



Heavier than 2'9 



18'5 per cent. 



34-0 



24-0 



23'5 



19'0 per cent. 



79-0 „ Quartz. Microcline. Orthoclase. 

 2-0 „ Ilmenite. Zircon. Rutile. Garnet. Hornblende. Apatite. 



Kyanite. Epidote. Cassiterite. Deep blue mineral 



unidentified. 



28-0 per cent. 



32-0 



15-0 



25-0 



33-0 per cent. 



64-0 „ Quartz. Microcline. 

 3'0 „ Garnet. Eutile. Cassiterite. Orthite. Hornblende. 

 Monazite. Zircon. Ilmenite. Kyanite. Epidote. 

 Tourmaline. 



25-0 per cent. 



38-0 



21-0 



16-0 



46'0 per cent. 



•53'0 „ Quartz. Orthoclase. Microcline. 



I'O „ Ilmenite. Zircon. Orthite. Apatite. Tourmaline. 



Eutile. Monazite. Garnet. Kyanite. Cassiterite. 



Sample No. 6. 



Eetained by 30 sieve .... 19-0 per cent. 



60 

 90 

 90 



60-0 

 150 

 6-0 



Passed by 



Loss in 10 per cent. HCl. . 37'0 per cent. 



Lighter than 2-9 62-0 „ 



Heavier than 2'9 1-0 



Sample No. 7. 



Eetained by 30 sieve . . . . 



60 „ .... 



90 „ .... 



Passed by 90 „ 



Loss in 10 per cent. HCl . . 

 Lighter than 2-9 



Quartz. Microcline. 



Ilmenite. Eutile. Epidote. Hornblende. 

 Spinel. Kyanite. Tourmaline. 



Zircon. Green 



15-0 per cent. 



40-0 



24-0 



21-0 



8-0 per cent. Very small percentage. 

 90-0 „ Quartz. Plagioclase Felspar. 



Microcline. 



Heavier than 2-9 2-0 



Ilmenite. Monazite. Orthite. Cassiterite. 

 Zircon. Eutile. Kyanite. Tourmaline. 



3h2 



Garnet. 



