Thumbprints - Turquoise Miscellaneous Images
   


Optical 1
Optical 2
  PIXE


EDS 		   

SEM 1		    



Turquoise is an opaque or translucent sky-blue or greenish blue precious stone. It is hydrated Copper Aluminum phosphate, CuAl6(PO4)4(OH)8.5H20, with a triclinic crystal structure. The SEM-EDX and PIXE analysis confirmed the presence of Cu, P and Al in the turquoise sample.

References 1. "Guide to rocks and minerals", Simon and Schusters.