Pearl Photos                    

Cochise College                                                                                                                                
Photos of Gemstones
Translucent Gemstones

Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu


Pearls,
cultured and freshwater

last edited:  11/29/17    number of photos:  35
Pearls are gems, but not gemstones.                                              
Pearl is Aragonite: CaCO3
hardness: 3 


natural pearls
black natural pearls:  A  B

 

freshwater pearl beads
pearl beads, natural colored:  A  B  C  D  E  F

pearl beads natural and dyed:  A  B  C  D  E  F

pearl beads, dyed: A  B  C  D 

 

cultured pearls
cultured pearls:  1  2  3  4  5  6  7  8  9  10
culturing pearls in China:  1  2  3  4  5
pearls within an oyster:  1


pearls in jewelry
pearl rings:  1

 

Photos are copyright free for non-commercial educational uses. 
Just credit photos to R.Weller/Cochise College. 
copyright 2017-R.Weller