Aragonite From Tintic, Utah
Joel E. Arem
Aragonite
Charles Winters
Aragonite #2
Millard H. Sharp
Aragonite From Tazouta, Morocco
Joel E. Arem
Nautilus Siphuncle, Sem #2
Eye Of Science
Nacreous Nautilus Shell, Sem #1
Eye Of Science
Nacreous Nautilus Shell, Sem #4
Eye Of Science
Nacreous Nautilus Shell, Sem #6
Eye Of Science
Nautilus Siphuncle, Sem #1
Eye Of Science
Nacreous Nautilus Shell, Sem #7
Eye Of Science
Nautilus Siphuncle, Sem #3
Eye Of Science
Nautilus Siphuncle, Sem
Eye Of Science
Nacreous Nautilus Shell, Sem #3
Eye Of Science
Nacreous Nautilus Shell, Sem #5
Eye Of Science
Nautilus Shell Growth, Sem
Eye Of Science
Nacreous Nautilus Shell, Sem #2
Eye Of Science
Nacreous Nautilus Shell, Sem #10
Eye Of Science
Aragonite #1
Millard H. Sharp
Aragonite Crystals
Millard H. Sharp
Aragonite
Millard H. Sharp
Aragonite Crystals #1
Millard H. Sharp
Fluorescent Aragonite
Millard H. Sharp
Blue Aragonite
Millard H. Sharp
Abalone Shell
Meckes/ottawa
Nacreous Nautilus Shell, Sem
Eye Of Science
Abalone Shell #1
Eye of Science
Nacreous Nautilus Shell, Sem #9
Eye Of Science
Abalone Shell, Sem #3
Ted Kinsman
Abalone Shell
Eye of Science
Nacreous Nautilus Shell, Sem #8
Eye Of Science
Synthetic Abalone Shell
Meckes/ottawa
Abalone Shell, Sem
Ted Kinsman
Synthetic Abalone Shell #1
Meckes/ottawa
Abalone Shell, Sem #1
Ted Kinsman
Abalone Shell, Sem #2
Ted Kinsman
Abalone Shell #2
Eye of Science