184 MINERALOGY OF THE LIZARD DISTRICT. 



Slide 20. — From Porthallow. — With alternate bands of serpentine anp 

 anthophyllite. 



Slide 21. — From Porthallow. — A good specimen of anthophyllite from 

 banded rock. 



Slide 22. — From Porthallow. — Containing bands of saussurite-felspar and 

 augite, changing into anthophyllite. 



Slide 23. — From Porthallow. — (plate C fig. 12) — Consisting principally of 

 well-developed crystals of anthophyllite and asbestos. 



Slide 24. — From Shepherd's quarry,Porthallow. — (plate C fig. 11) — Malacolite 

 changing into a dark green hornblende, associated with saussurite 

 and actinolite. 



