MINERALOGICAL STRUCTURE N.E. LIZARD DISTRICT. 



Plate C. 



Fig. 9.— Enstatite and Serpentine, fibres of 

 Enstatite unchanged. Porthallow. 



Fig. 10. — Olivine and Enstatite each chang- 

 ing into Serpentine. Coverack. 



Scale 20 diameters. 



Polarized light. 



T. CLARK, A. M.S., TRURO, 



Fig. 11. — Malacolite changing into dark 

 green Hornblende. Shepherd's 

 Quarry, Porthallow. 



Fig. 12. — Banded rocks containing well- 

 developed Anthophyllite crystals. 

 Porthallow. 



